| 1574356 |
unknown |
|
Although the causal agent of this lesion was not confirmed, the important thing to note is how the lesion radiates from a single wound at the center. February 1998 |
| 1574355 |
sour rot |
Geotrichum candidum |
Cortical collapse symptoms associated with Geotrichum candidum and sour rot. February 1998 |
| 1574354 |
abiotic stresses (general) |
|
Alligator skin (cause unknown). February 1998 |
| 1574353 |
abiotic stresses (general) |
|
Alligator skin (cause unknown). February 1998 |
| 1574352 |
Sweet Potato Feathery Mottle Virus |
Potyvirus SPFMV |
Russet crack symptoms caused by the russet crack strain of SPFMV. February 1998 |
| 1574351 |
sweetpotato |
Ipomoea batatas |
Retail display at farmers market in Los Angeles, CA. February 1998 |
| 1574231 |
sweetpotato |
Ipomoea batatas |
Freshly harvest roots in harvesting bucket. November 1997 |
| 1574228 |
sweetpotato |
Ipomoea batatas |
Freshly harvest roots in bulk bins. November 1997 |
| 1574229 |
sweetpotato |
Ipomoea batatas |
Freshly harvest roots in bulk bins. November 1997 |
| 1574230 |
sweetpotato |
Ipomoea batatas |
Freshly harvest roots in harvesting bucket. November 1997 |
| 1574227 |
sweetpotato |
Ipomoea batatas |
Sweetpotato storage in bulk bins. November 1997 |
| 1574225 |
sweetpotato |
Ipomoea batatas |
Packed cartons of sweepotato on a pallet and ready for transport to market. November 1997 |
| 1574226 |
sweetpotato |
Ipomoea batatas |
Packed cartons of sweepotato on a pallet and ready for transport to market. November 1997 |
| 1574224 |
sweetpotato |
Ipomoea batatas |
Skinning occurs when roots brush up against other roots or other surfaces and should be minimized. November 1997 |
| 1574223 |
sweetpotato |
Ipomoea batatas |
Sweetpotato roots can get very large. These would be graded as "jumbo." |
| 1574221 |
sweetpotato |
Ipomoea batatas |
Harvesting sweetpotato. Roots are manually picked from plowed and flipped plants, then placed into buckets for transport to bulk bins. Bulk bins are transported to the packinghouse for curing and storage. November 1997 |
| 1574222 |
sweetpotato |
Ipomoea batatas |
Harvesting sweetpotato. Roots are manually picked from plowed and flipped plants, then placed into buckets for transport to bulk bins. Bulk bins are transported to the packinghouse for curing and storage. November 1997 |
| 1574218 |
sweetpotato |
Ipomoea batatas |
Harvesting sweetpotato. Roots are manually picked from plowed and flipped plants, then placed into buckets for transport to bulk bins. Bulk bins are transported to the packinghouse for curing and storage. November 1997 |
| 1574219 |
sweetpotato |
Ipomoea batatas |
Harvesting sweetpotato. Roots are manually picked from plowed and flipped plants, then placed into buckets for transport to bulk bins. Bulk bins are transported to the packinghouse for curing and storage. November 1997 |
| 1574220 |
sweetpotato |
Ipomoea batatas |
Harvesting sweetpotato. Roots are manually picked from plowed and flipped plants, then placed into buckets for transport to bulk bins. Bulk bins are transported to the packinghouse for curing and storage. November 1997 |
| 1574217 |
sweetpotato |
Ipomoea batatas |
Harvesting sweetpotato. Roots are manually picked from plowed and flipped plants, then placed into buckets for transport to bulk bins. November 1997 |
| 1574214 |
sweetpotato |
Ipomoea batatas |
Harvesting sweetpotato. Plants are plowed up and flipped so that roots are exposed and vines are buried. November 1997 |
| 1574215 |
sweetpotato |
Ipomoea batatas |
Harvesting sweetpotato. Plants are plowed up and flipped so that roots are exposed and vines are buried. November 1997 |
| 1574216 |
sweetpotato |
Ipomoea batatas |
Harvesting sweetpotato. Plants are plowed up and flipped so that roots are exposed and vines are buried. November 1997 |
| 1574212 |
sweetpotato |
Ipomoea batatas |
Individually film wrapped sweetpotato root for use in the microwave. November 1997 |
| 1574211 |
sweetpotato |
Ipomoea batatas |
Rinsing sweetpotato roots. November 1997 |
| 1574210 |
sweetpotato |
Ipomoea batatas |
Sweetpotato grading. Roots with blemishes or poor shape are tossed into the center conveyor where they move to another destination. November 1997 |
| 1574209 |
sweetpotato |
Ipomoea batatas |
Manual grading of sweetpotato roots. November 1997 |
| 1574208 |
sweetpotato |
Ipomoea batatas |
In order to control postharvest decay caused by Rhizopus soft rot, a dicloran fungicide dip is often employed. Here roots are moving out of the dicloran dip and onto a conveyor for further processing. November 1997 |
| 1574207 |
sweetpotato |
Ipomoea batatas |
Some sweetpotato dumps occur in two stages: 1) a dry dump onto a conveyor then 2) into wash water. November 1997
|
| 1574206 |
sweetpotato |
Ipomoea batatas |
Sweetpotato roots flow from the dump tank onto a conveyor aided manually by a wide broom. November 1997 |
| 1574205 |
sweetpotato |
Ipomoea batatas |
Water rinse on packingline. November 1997 |
| 1574204 |
sweetpotato |
Ipomoea batatas |
Field of freshly dug sweetpotatoes. Vines are turned under to expose roots at the surface. Roots will be hand picked into buckets. November 1997 |
| 1574203 |
sweetpotato |
Ipomoea batatas |
Bin of soil removed from sweetpotato roots at the point of dumping. Placing the dump outdoors minimizes the amount of soil and dust entering the packinghouse. November 1997 |
| 1574202 |
sweetpotato |
Ipomoea batatas |
Soil removed from sweetpotatoes at the point of dumping onto the packingline. November 1997 |
| 1574201 |
sweetpotato |
Ipomoea batatas |
Sweetpotato bind dumper. The flap allows some control over the speed of dumping and minimizes injury to roots during this process. November 1997 |
| 1574199 |
sweetpotato |
Ipomoea batatas |
Outdoor dump tank keeps dust and debris out of a cleaner packinghouse. November 1997 |
| 1574200 |
sweetpotato |
Ipomoea batatas |
Outdoor dump tank keeps dust and debris out of a cleaner packinghouse. November 1997 |
| 1574198 |
sweetpotato |
Ipomoea batatas |
Dump tank full of sweetpotatoes. Note the amount of skinning on root surfaces. November 1997
|
| 1574197 |
Sweet Potato Feathery Mottle Virus |
Potyvirus SPFMV |
Sweetpotato russett crack is caused by a strain of SPFMV. The cracking often occurs in rings around the root resulting in contrictions. November 1997 |
| 1574196 |
Sweet Potato Feathery Mottle Virus |
Potyvirus SPFMV |
Sweetpotato russett crack is caused by a strain of SPFMV. The cracking often occurs in rings around the root. November 1997 |
| 1574195 |
Sweet Potato Feathery Mottle Virus |
Potyvirus SPFMV |
Sweetpotato russett crack is caused by a strain of SPFMV. The cracking often occurs in rings around the root. November 1997 |
| 1574194 |
Sweet Potato Feathery Mottle Virus |
Potyvirus SPFMV |
Sweetpotato russett crack is caused by a strain of SPFMV. The cracking often occurs in rings around the root. November 1997 |
| 1574190 |
Sweet Potato Feathery Mottle Virus |
Potyvirus SPFMV |
Sweetpotato russett crack is caused by a strain of SPFMV. The cracking often occurs in rings around the root which causes contrictions. November 1997 |
| 1574191 |
scurf |
Monilochaetes infuscans |
In addition to the more obvious soil stain symptom, scurf will often cause minute cracking of the root surface. November 1997 |
| 1574192 |
scurf |
Monilochaetes infuscans |
In addition to the more obvious soil stain symptom, scurf will often cause minute cracking of the root surface. November 1997 |
| 1574193 |
scurf |
Monilochaetes infuscans |
In addition to the more obvious soil stain symptom, scurf will often cause minute cracking of the root surface. November 1997 |
| 1574189 |
scurf |
Monilochaetes infuscans |
In addition to the more obvious soil stain symptom, scurf will often cause minute cracking of the root surface. In this case, almost the entire surface of the root is covered by the symptom. November 1997 |
| 1574187 |
scurf |
Monilochaetes infuscans |
Scurf will often cause minute cracking of the root surface. November 1997 |
| 1574188 |
scurf |
Monilochaetes infuscans |
In addition to the more obvious soil stain symptom, scurf will often cause minute cracking of the root surface. November 1997 |
| 1574186 |
scurf |
Monilochaetes infuscans |
Scurf will often cause minute cracking of the root surface. November 1997 |
| 1574185 |
Rhizopus soft rots |
Rhizopus spp. |
Tufts of sporulation emerge from areas where skin is broken. The entire root is soft rotted. November 1997 |
| 1574184 |
fasciation |
|
Fasiated stems. November 1997 |
| 1574181 |
sweetpotato |
Ipomoea batatas |
Sweetpotato healed cut. Dark material near the parimeter of the cut surface is dried latex. November 1997 |
| 1574180 |
sour rot |
Geotrichum candidum |
Geotrichum sour rot. White cheesy growth is mycelium and conidia of the pathogen. November 1997
|
| 1574178 |
sour rot |
Geotrichum candidum |
Geotrichum sour rot. White cheesy growth is mycelium and conidia of the pathogen. November 1997 |
| 1574179 |
sour rot |
Geotrichum candidum |
Geotrichum sour rot. White cheesy growth is mycelium and conidia of the pathogen. November 1997
|
| 1573988 |
root-knot nematode |
Meloidogyne spp. |
Close-up of cracking on root caused by root-knot nematode infection. September 1997 |
| 1573987 |
root-knot nematode |
Meloidogyne spp. |
Cracking on root set from a single plant. September 1997 |
| 1573985 |
root-knot nematode |
Meloidogyne spp. |
Galls on feeder roots. September 1997 |
| 1573986 |
root-knot nematode |
Meloidogyne spp. |
Galls on feeder roots. September 1997 |
| 1573837 |
white rust |
Albugo candida |
Severely diseased leaves of morning glory. The same disease occurs on sweetpotato, a close relative of morning glory. August 1997 |
| 1573638 |
Sweet Potato Feathery Mottle Virus |
Potyvirus SPFMV |
Close-up of symptomatic leaves. July 1997 |
| 1573636 |
Sweet Potato Feathery Mottle Virus |
Potyvirus SPFMV |
Close-up of affected leaves. July 1997 |
| 1573637 |
Sweet Potato Feathery Mottle Virus |
Potyvirus SPFMV |
Close-up of affected leaf. July 1997 |
| 1573635 |
white rust |
Albugo ipomoeae-panduratae |
????????Morning glory leaf (lower surface facing upward) with heavy sporulation of white rust, on top of a sweetpotato leaf from the same area that is not affected. This shows the degree of susceptibility between the two species of Ipomoeae. July 1997 |
| 1573632 |
white rust |
Albugo ipomoeae-panduratae |
Top and underside of leaves infected with white rust. Lower leaf surface shows abundant sporulation. July 1997 |
| 1572955 |
herbicides (general) |
|
Herbicide (Command) injury to young sweeetpotato foliage. May 1997? |
| 1572953 |
herbicides (general) |
|
Herbicide (Command) injury to young sweeetpotato foliage. May 1997? |
| 1572954 |
herbicides (general) |
|
Herbicide (Command) injury to young sweeetpotato foliage. May 1997? |
| 1572952 |
herbicides (general) |
|
Herbicide (Command) injury to young sweeetpotato foliage. May 1997 |
| 1572951 |
sweetpotato |
Ipomoea batatas |
Sweetpotato plant beds. Roots were buried beneath 1 inch of soil and sprouts have emerged in a thick stand or sweetpotato plants. These will be cut and used as transplants for the year's crop. Yellowing leaves are the result of herbicide (Command) injury. May 1997? |
| 1572950 |
sweetpotato |
Ipomoea batatas |
Sweetpotato plant bed. Roots were buried beneath 1 inch of soil and sprouts have emerged in a thick stand or sweetpotato plants. These will be cut and used as transplants for the year's crop. May 1997? |
| 1572949 |
sweetpotato |
Ipomoea batatas |
Sweetpotato plant beds. Roots were buried beneath 1 inch of soil and sprouts have emerged in a thick stand or sweetpotato plants. These will be cut and used as transplants for the year's crop. May 1997 |
| 1572948 |
sweetpotato |
Ipomoea batatas |
Sweetpotatoes are vegetatively propagated. Roots are buried and will produce sprouts. The sprouts are used as planting material for the next crop. Here a root from a sweetpotato bed has been dug up to show where sprouts originate. May 1997? |
| 1572947 |
sweetpotato |
Ipomoea batatas |
Sweetpotatoes are vegetatively propagated. Roots are buried and will produce sprouts. The sprouts are used as planting material for the next crop. May 1997? |
| 1572944 |
sweetpotato |
Ipomoea batatas |
Sweetpotato sprout as it appears when pulled from below-ground root. Diseases such as scurf are vegetatively propagated in this manner. Modern production practices use "cuttings" so that below ground parts remain in the ground along with any pathogen they might harbor. May 1997 |
| 1572942 |
sweetpotato |
Ipomoea batatas |
Sweetpotato roots in water treated with Botran fungicide to prevent decay caused by Rhizopus soft rot. May 1997 |
| 1572940 |
sweetpotato |
Ipomoea batatas |
Air temperature in a packed carton of sweetpotato measures 60 degrees F. May 1997? |
| 1572939 |
sweetpotato |
Ipomoea batatas |
Air temperature in a packed carton of sweetpotato measures 60 degrees F. May 1997 |
| 1572937 |
sweetpotato |
Ipomoea batatas |
Sizing sweetpotato roots. Gaps between bars increase as roots travel, dropping onto different belts below. May 1997 |
| 1572935 |
sweetpotato |
Ipomoea batatas |
Postharvest research on Rhizopus soft rot. The device on top of the root (a spring-loaded dowel) was used to make a shallow impact bruise. This type of injury makes the sweetpotato most susceptible to decay. May 1997 |
| 1572934 |
sweetpotato |
Ipomoea batatas |
Sweetpotatoes in storage. Note the areas where abrasions have occurred during harvesting. May 1997 |
| 1572933 |
sweetpotato |
Ipomoea batatas |
Sweetpotatoes in bulk storage. May 1997 |
| 1572931 |
sweetpotato |
Ipomoea batatas |
Sweetpotato roots rolling along a brush bed where wax is applied. May 1997? |
| 1572930 |
sweetpotato |
Ipomoea batatas |
Sweetpotato roots rolling along a brush bed where wax is applied. May 1997 |
| 1572929 |
sweetpotato |
Ipomoea batatas |
Sweetpotato roots rolling along a brush bed. May 1997? |
| 1572927 |
sweetpotato |
Ipomoea batatas |
The sweetpotato washing and packing process begins with dumping roots into a tank of water. May 1997? |
| 1572928 |
sweetpotato |
Ipomoea batatas |
The sweetpotato washing and packing process begins with dumping roots into a tank of water. Here roots are being pulled out of the dump tank for further processing. May 1997? |
| 1572926 |
sweetpotato |
Ipomoea batatas |
The sweetpotato washing and packing process begins with dumping roots into a tank of water. May 1997? |
| 1572925 |
sweetpotato |
Ipomoea batatas |
The sweetpotato washing and packing process begins with dumping roots into a tank of water. May 1997 |
| 1572923 |
sweetpotato |
Ipomoea batatas |
Dead fruit flies on the surface of a stored sweetpotato. Fruit flies can increase dramatically during storage if rots occur. May 1997 |
| 1572922 |
sweetpotato |
Ipomoea batatas |
Sweetpotato root showing dried latex (brown mass from close end). The latex is natural and poses no risk to consumption, but is unsightly and can be difficult to wash off during the washing and packing process. Growers sometimes refer to this as "elephant snot." Note also the small raised spots often referred to as pimples. The cultivar is Hernandez. May 1997 |
| 1572920 |
scurf |
Monilochaetes infuscans |
May 1997 |
| 1572921 |
Java black rot |
Lasiodiplodia theobromae |
May 1997 |
| 1572918 |
scurf |
Monilochaetes infuscans |
May 1997 |
| 1572919 |
scurf |
Monilochaetes infuscans |
May 1997 |
| 1572917 |
sweetpotato |
Ipomoea batatas |
Sweetpotato roots sprouting during storage. May 1997 |
| 1572916 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Root cross section. May 1997? |
| 1572915 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
See 1572916 for cross section of same root. May 1997 |
| 1572913 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Root cross section. May 1997? |
| 1572914 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Root cross section. May 1997? |
| 1572912 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Root cross section. May 1997 |
| 1572910 |
Penicillium fungi |
Penicillium spp. |
A mixture of Rhizopus and Penicillium on a sweetpotato root. May 1997 |
| 1572908 |
Rhizopus soft rots |
Rhizopus spp. |
May 1997 |
| 1572909 |
Rhizopus soft rots |
Rhizopus spp. |
May 1997 |
| 1572907 |
Rhizopus soft rots |
Rhizopus spp. |
May 1997 |
| 1572906 |
Rhizopus soft rots |
Rhizopus spp. |
May 1997 |
| 1572904 |
Fusarium root rot and wilt |
Fusarium oxysporum |
Fusarium surface rot in stored sweetpotato. The scalloped concentric rings take several weeks/months to develop and are diagnostic symptoms of the disease. Note the white flecks at the margin of the lesion; sporulation of the pathogen. May 1997 |
| 1572905 |
Fusarium root rot and wilt |
Fusarium oxysporum |
Fusarium surface rot in stored sweetpotato. The scalloped concentric rings take several weeks/months to develop and are diagnostic symptoms of the disease. May 1997? |
| 1572902 |
Fusarium root rot and wilt |
Fusarium oxysporum |
Fusarium surface rot in stored sweetpotato. The scalloped concentric rings take several weeks/months to develop and are diagnostic symptoms of the disease. Note the white flecks at the margin of the lesion; sporulation of the pathogen. May 1997? |
| 1572900 |
Fusarium root rot and wilt |
Fusarium oxysporum |
Fusarium surface rot in stored sweetpotato. The scalloped concentric rings take several weeks/months to develop and are diagnostic symptoms of the disease. Note that the lesion originated from a wound in the center. May 1997? |
| 1572898 |
Fusarium root rot and wilt |
Fusarium oxysporum |
Fusarium surface rot in stored sweetpotato. The scalloped concentric rings take several weeks/months to develop and are diagnostic symptoms of the disease. May 1997? |
| 1572897 |
Fusarium root rot and wilt |
Fusarium oxysporum |
Fusarium surface rot in stored sweetpotato. May 1997 |
| 1563204 |
scurf |
Monilochaetes infuscans |
Historic, slide set used at grower meetings to show steps to control the then prevalent and costly scurf disease. Since 1980, scurf is occasionally seen in North Carolina. Photo~1954. The use of cut plants instead of pulled plants is highly effective in avoiding scurf. The knife should not touch the soil. |
| 1563212 |
Fusarium damping-off |
Fusarium solani |
Effect of temperature on growth of Fusarium solani and root rot |
| 1563197 |
scurf |
Monilochaetes infuscans |
Historic, four slide set used at grower meetings to show steps to control the then prevalent and costly scurf disease. Scurf is occasionally seen in North Carolina since 1980. Photo~1954. |
| 1563199 |
scurf |
Monilochaetes infuscans |
Historic, four slide set used at grower meetings to show steps to control the then prevalent and costly scurf disease. Scurf is occasionally seen in North Carolina since 1980. Photo~1954. |
| 1563200 |
sweetpotato |
Ipomoea batatas |
Historic, four slide set used at grower meetings to show steps to control the then prevalent and costly scurf disease. Scurf is occasionally seen in North Carolina since 1980. Photo~1954. |
| 1563201 |
sweetpotato |
Ipomoea batatas |
Historic, slide set used at grower meetings to show steps to control the then prevalent and costly scurf disease. Since 1980, scurf is occasionally seen in North Carolina. Phto~1954. |
| 1563203 |
sweetpotato |
Ipomoea batatas |
Historic, slide set used at grower meetings to show steps to control the then prevalent and costly scurf disease. Since 1980, scurf is occasionally seen in North Carolina. Livestock manure was used to generate warmth for the roots to sprout in the plant bed. However the manure carried inoculum, so 4inches of soil was used to separate the roots from the manure. Photo~1954. |
| 1573259 |
sweetpotato |
Ipomoea batatas |
NC State University researchers transplant sweetpotato slips for a micropropagation experiment. June 1997? |
| 1573258 |
sweetpotato |
Ipomoea batatas |
Recently transplanted sweetpotato. Jun 1997 |
| 1573257 |
sweetpotato |
Ipomoea batatas |
NC State University researchers transplant sweetpotato slips for a micropropagation experiment. June 1997? |
| 1573255 |
sweetpotato |
Ipomoea batatas |
Transplanting sweetpotato slips for a micropropagation experiment. June 1997? |
| 1573256 |
sweetpotato |
Ipomoea batatas |
Transplanting sweetpotato slips for a micropropagation experiment. June 1997? |
| 1573254 |
sweetpotato |
Ipomoea batatas |
NC State University researcher transplants sweetpotato slips for a micropropagation experiment. June 1997? |
| 1573253 |
sweetpotato |
Ipomoea batatas |
NC State University researcher (Dr. Charles Averre) places groups of sweetpotato slips at the appropriate position for transplanting in randomized experimental plots (micropropagation experiment). June 1997? |
| 1573251 |
sweetpotato |
Ipomoea batatas |
NC State University researchers transplant sweetpotato slips for a micropropagation experiment. June 1997 |
| 1573252 |
sweetpotato |
Ipomoea batatas |
NC State University researchers transplant sweetpotato slips for a micropropagation experiment. June 1997? |
| 1563467 |
Java black rot |
Lasiodiplodia theobromae |
Early stages of Java Black Rot. The rot is firm, moist, and black. Look for locules in the stromatic tissue containing spores. It is a serious storage rot that develops rapidly. The fungus is often called Diplodia tubericola. (Jewel, Jan 73) |
| 1563206 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
A severely pox affected sweetpotato field near intended harvest, however the field was not harvested because of severe pox occurrence. Often weedy fields indicate a pox problem (cv. Jewel, November 1978) |
| 1563218 |
sweetpotato |
Ipomoea batatas |
Sweetpotato plantbeds. Workers removing sprouts from bedded storage roots to be used to plant fields. |
| 1563222 |
sweetpotato |
Ipomoea batatas |
Sweetpotato slips (plants) packed in bushel boxes to be taken to the field and planted (June 1978). |
| 1563214 |
Sweet Potato Feathery Mottle Virus |
Potyvirus SPFMV |
Sweetpotato. Foliar symptoms of Feathery Mottle Virus. Notice purple ringspots (cv.Jewel, Aug78). |
| 1563216 |
sweetpotato |
Ipomoea batatas |
Sweetpotato field ready to be planted. (Jun69). |
| 1572938 |
sweetpotato |
Ipomoea batatas |
Palletized, packed cartons of sweetpotato. April 1997 |
| 1572941 |
sweetpotato |
Ipomoea batatas |
Palletized, packed cartons of sweetpotato. April 1997 |
| 1563527 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Fumigating pox infested soil fumigation with Telone-C17 improves stands and yield, but quality of harvested roots is not acceptable. |
| 1563597 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
|
| 1563598 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
|
| 1563599 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
|
| 1563600 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
|
| 1563648 |
flooding/high water |
|
Roots in saturated soil may asphyxiate with ethanol accumulation. Affected roots when cut open have a sweet odor, reduced latex flow, glossy appearance and rot in storage (Nov77, cv.Jewel ), in sweetpotato, this is called 'sour'. |
| 1563647 |
flooding/high water |
|
Roots in saturated soil may asphyxiate with ethanol accumulation. Affected roots when cut open have a sweet odor, reduced latex flow, glossy appearance and rot in storage (Nov77, cv.Jewel). In sweetpotato, this condition is called "sour." |
| 1563697 |
Gibberella canker |
Gibberella baccata |
Chlorotic leaf distortion caused by a virus. |
| 1563650 |
asphyxiation |
|
Roots in saturated soil may asphyxiate with ethanol accumulation. Affected roots often have water soaked appearance with dark eyes. When cut open have a sweet odor, reduced latex flow, glossy appearance and rot in storage. Large root at left is healthy. (Nov77, cv.Jewel ) |
| 1563649 |
asphyxiation |
|
649 Roots in saturated soil may asphyxiate with ethanol accumulation. Affected roots often have water soaked appearance with dark eyes. When cut open have a sweet odor, reduced latex flow, glossy appearance and rot in storage (Nov77, cv.Jewel) |
| 1563271 |
sweetpotato |
Ipomoea batatas |
Sweetpotato roots, cv. 'Pope' still attached to plant after digging with a plow (Oct77). |
| 1563223 |
sweetpotato |
Ipomoea batatas |
Sweetpotato roots were covered with too much soil and rotted in the plant bed and produced no sprouts (Apr 98 |
| 1563219 |
sweetpotato |
Ipomoea batatas |
Sweetpotato plantbeds showing magnitude of the operation. Notice crews in background (Jun.78). |
| 1563220 |
sweetpotato |
Ipomoea batatas |
Sweetpotato plantbeds showing magnitude of the operation. Notice crews in background (Jun.78). |
| 5435598 |
tussock moth |
Euproctis taiwana |
|
| 1436129 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
|
| 1436132 |
Fusarium wilt (stem rot) |
Fusarium oxysporum f.sp. batatas |
|
| 1436130 |
scurf |
Monilochaetes infuscans |
|
| 1436131 |
Rhizopus soft rots |
Rhizopus spp. |
|
| 1563694 |
Gibberella canker |
Gibberella baccata |
Foliar fungus, Fusarium lateritium, occasionally occurs on the adaxial leaf surface prior to opening. After the leaves are expanded the fungus is seen as a white chalky substance on the leaf margins. (Nov88) |
| 1563695 |
Gibberella canker |
Gibberella baccata |
Foliar fungus, Fusarium lateritium, occasionally occurs on the adaxial leaf surface prior to opening. After the leaves are expanded the fungus is seen as a white chalky substance on the leaf margins. (Nov88) |
| 1563696 |
Gibberella canker |
Gibberella baccata |
Foliar fungus, Fusarium lateritium, occasionally occurs on the adaxial leaf surface prior to opening. After the leaves are expanded the fungus is seen as a white chalky substance on the leaf margins. (Nov88) |
| 1563217 |
sweetpotato |
Ipomoea batatas |
Sweetpotato field just planted with slips. (Jun69). |
| 1563701 |
edema |
|
Edema pustules usually are on the abaxial leaf surface. |
| 1563702 |
edema |
|
Edema pustules on leaf. Left abaxial surface with many pustules, right adaxial surface has no pustules. |
| 1563689 |
edema |
|
Edema are blisters forming on the surface of roots. The blisters may rupture and turn black when (Feb92, cv.Jewel)
l |
| 1563690 |
edema |
|
Cross section through an edema blister on the surface of a root. Notice the enlarged, colorless cells forming the blister that easily ruptures and turn black when colonized by microbes (Feb92, cv.Jewel)
|
| 1563691 |
edema |
|
Cross section through an edema blister on the surface of a root. Notice the enlarged, colorless cells forming the blister that easily ruptures and turn black when colonized by microbes (Feb92, cv.Jewel)
|
| 1563692 |
edema |
|
Cross section through an edema blister on the surface of a root. Notice the enlarged, colorless cells forming the blister that easily ruptures and turn black when colonized by microbes (Feb92, cv.Jewel)
|
| 1563693 |
fasciation |
|
Fasciation is characterized by very wide stems caused by the lateral fusion of buds in their formative stages. The incidence in a field is usually very low. |
| 1563686 |
edema |
|
Photomicrograph showing enlarged cells in a blister between the periderm and parenchyma, 100x. (Jan92). |
| 1563687 |
edema |
|
Edema are blisters forming on the surface of roots. The blisters may rupture and turn black when ruptured and colonized by microbes (Feb92, cv.Jewel). |
| 1563688 |
edema |
|
Edema are blisters forming on the surface of roots. The blisters may rupture and turn black when ruptured and colonized by microbes (Feb92, cv.Jewel) |
| 1563682 |
edema |
|
Edema are blisters forming on the surface of roots. The blisters may rupture and turn black when ruptured and colonized by microbes. |
| 1563683 |
edema |
|
Photomicrograph showing enlarged cells in a blister. |
| 1563685 |
edema |
|
Photomicrograph showing enlarged cells in a blister between the periderm and parenchyma, 100x. (Jan92) |
| 1563662 |
boron deficiency |
|
Blister caused by boron deficiency appears as raised purple/brown spots. Scurf spots may be similar but are not raised. Spotting may occur internally especially near the vascular ring. Blister may develop in storage. (Feb92,cv.Beauregard) |
| 1563663 |
boron deficiency |
|
Blister caused by boron deficiency appears as raised purple/brown spots. Scurf spots may be similar but are not raised. Spotting may occur internally especially near the vascular ring. Blister may develop in storage. (Feb92, Hernandez) |
| 1563664 |
boron deficiency |
|
Blister caused by boron deficiency appears as raised purple/brown spots. Scurf spots may be similar but are not raised. Spotting may occur internally especially near the vascular ring. Blister may develop in storage. (Dec92, cv. Hernandez |
| 1563665 |
boron deficiency |
|
Blister caused by boron deficiency appears as raised purple/brown spots. Scurf spots may be similar but are not raised. Spotting may occur internally especially near the vascular ring. Blister may develop in storage. (Feb92, cv. Hernandez)
|
| 1563678 |
edema |
|
Edema are blisters forming on the surface of roots. Lower roots also with black rot.
|
| 1563679 |
edema |
|
Edema are blisters forming on the surface of roots. |
| 1563680 |
edema |
|
Edema are blisters forming on the surface of roots. The blisters may rupture and turn black when ruptured and colonized by microbes. |
| 1563658 |
high soluble salts |
|
Fertilizer burn. (Jun69, cv.Centennial) |
| 1563659 |
boron deficiency |
|
Blister caused by boron deficiency appears as raised purple/brown spots. Scurf spots may be similar but are not raised. Spotting may occur internally especially near the vascular ring. Blister may develop in storage. (Nov79) |
| 1563641 |
cold injury (low temperature) |
|
Roots injured by low temperatures usually do not produce latex when cut. Internally the flesh may be spongy and watery and later develop cavities and dark streaks followed by root rotting fungi (cv.Jewel, May78). |
| 1563642 |
cold injury (low temperature) |
|
Roots injured by low temperatures usually do not produce latex when cut. Internally the flesh may be spongy and watery and later develop cavities and dark streaks followed by root rotting fungi (cv.Jewel, Apr77).
|
| 1563643 |
cold injury (low temperature) |
|
Roots injured by low temperatures usually do not produce latex when cut. Internally the flesh may be spongy and watery and later develop cavities and dark streaks followed by root rotting fungi (cv.Jewel, Dec70).
|
| 1563645 |
flooding/high water |
|
Standing water injury. Notice raised lenticels (Sep71, cv.Jewel). |
| 1563646 |
flooding/high water |
|
Standing water will kill the roots and then are colonized by fungi (Oct76, cv.Jewel). |
| 1563633 |
cold injury (low temperature) |
|
Roots injured by low temperatures usually do not produce latex when cut (cv.Jewel, Dec70). |
| 1563634 |
cold injury (low temperature) |
|
Roots injured by low temperatures usually do not produce latex when cut (cv.Jewel, Dec70).
|
| 1563635 |
cold injury (low temperature) |
|
Roots injured by low temperatures usually do not produce latex when cut. Internally the flesh may be spongy and watery and later develop cavities and dark color. Presence of Penicillium on the surface often indicates cold injury (cv.Jewel, Jan82). |
| 1563636 |
cold injury (low temperature) |
|
Roots injured by low temperatures usually do not produce latex when cut. Internally the flesh may be spongy and watery and later develop cavities and dark color. Presence of Penicillium on the surface often indicates cold injury (cv.Jewel, Jan82). |
| 1563637 |
cold injury (low temperature) |
|
Roots injured by low temperatures usually do not produce latex when cut. Internally the flesh may be spongy and watery and later develop cavities and dark color. Presence of Penicillium on the surface often indicates cold injury (cv.Jewel, Jan82). |
| 1563638 |
cold injury (low temperature) |
|
Roots injured by low temperatures usually do not produce latex when cut. Internally the flesh may be spongy and watery and later develop cavities and dark color. Presence of Penicillium on the surface often indicates cold injury (cv.Jewel, Jan82). |
| 1563639 |
cold injury (low temperature) |
|
Roots injured by low temperatures usually do not produce latex when cut. Internally the flesh may be spongy and watery and later develop cavities and dark color. Notice blackening of veins. Presence of Penicillium on the surface often indicates cold injury (cv.Jewel, May78). |
| 1563640 |
cold injury (low temperature) |
|
Roots injured by low temperatures usually do not produce latex when cut. Internally the flesh may be spongy and watery and later develop cavities and dark color followed by Fusarium root rot (cv.Jewel, Dec70). |
| 1563607 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Bacterial soft rot on harvested root. Often there is no external evidence that rot is inside the root. This causes a problem in the cannery because graders do not discard them. These roots were collected after peeling at the cannery. (cv.Jewel, Sep76). |
| 1563608 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Bacterial soft rot on harvested root. Often there is no external evidence that rot is inside the root. This causes a problem in the cannery because graders do not discard them, (cv.Jewel, Sep76).
|
| 1563601 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Bacterial soft rot on harvested root. Often there is no external evidence that rot is inside the root. This causes a problem in the cannery because graders do not discard them, (cv.Jewel, Sep76). |
| 1563602 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Bacterial soft rot on harvested root. Often there is no external evidence that rot is inside the root. This causes a problem in the cannery because graders do not discard them, (cv.Jewel, Sep76). |
| 1563603 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Bacterial soft rot on harvested root. Often there is no external evidence that rot is inside the root. This causes a problem in the cannery because graders do not discard them, (cv.Jewel, Sep76). |
| 1563604 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Bacterial soft rot on harvested root. Often there is no external evidence that rot is inside the root. This causes a problem in the cannery because graders do not discard them. These roots were collected after peeling at the cannery. (cv.Jewel, Sep76). |
| 1563631 |
cold injury (low temperature) |
|
Cold injury. |
| 1563632 |
cold injury (low temperature) |
|
Roots injured by low temperatures usually do not produce latex when cut (cv.Cntennial, May70) |
| 1563596 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Bacterial soft rot on harvested root. Often there is no external evidence that rot is inside the root. This causes a problem in the cannery because graders do not discard them, (cv.Jewel, Sep76). |
| 1563585 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Bacterial soft rot. Often there is rot inside the root with little external evidence. (cv.Jewel?, Dec94). |
| 1563586 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Bacterial soft rot. Often there is rot inside the root with little external evidence. (cv.Jewel?, Dec94). |
| 1563587 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Bacterial soft rot. Often there is rot inside the root with little external evidence. This causes a problem in the cannery because graders do not discard them, (cv.Jewel?, Dec94). |
| 1563588 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Bacterial soft rot. Lower stem may swell, split, and have black xylem tissue. Branch vines turn black and leaves may turn yellowish.. (cv.Jewel?, Dec94).
|
| 1563589 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Bacterial soft rot. Lower stem may swell, split, and have black xylem tissue. Branch vines turn black and leaves may turn yellowish.. (cv.Jewel?, Dec94).
|
| 1563590 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Bacterial soft rot. Lower stem may swell, split, and have black xylem tissue. Branch vines turn black and leaves may turn yellowish.. (cv.Jewel?, Dec94).
|
| 1563591 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Bacterial soft rot. Lower stem may swell, split, and have black xylem tissue. Branch vines turn black and leaves may turn yellowish.. (cv.Jewel?, Dec94).
|
| 1563592 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Bacterial soft rot. Lower stem may swell, split, and have black xylem tissue. Branch vines turn black and leaves may turn yellowish.. (cv.Jewel?, Dec94).
|
| 1563593 |
bacteria wilt and soft rot |
Dickeya chrysanthemi |
Bacterial soft rot. Lower stem may swell, split, and have black xylem tissue. Branch vines turn black and leaves may turn yellowish.. (cv.Jewel?, Dec94).
|
| 1563556 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Pox lesions on underground stem and feeder roots. (cv.Jewel, Mar79).
|
| 1563543 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Pox often causes distorted roots are not marketable (cv.Jewel, Nov89). |
| 1563548 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Breeding line from Louisiana L-462 is resistant to pox while the North Carolina NC-734 is susceptible. Resistance to pox is important because soil treatments are expensive and not very effective. |
| 1563554 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Two rows were fumigated with Telone-C-17 (cv.Jewel, Jul90). |
| 1563532 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Pox lesions are crusty, crater shaped and may penetrate 5mm or more into the fleshy root and have an earthy taste. Infection often starts where a small root is attached (cv.Jewel, Apr80). |
| 1563533 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Pox lesions are crusty, crater shaped and may penetrate 5mm or more into the fleshy root and have an earthy taste. Infection often starts where a small root is attached (cv.Jewel, Apr80). |
| 1563535 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Pox lesions are crusty, crater shaped and may penetrate 5mm or more into the fleshy root and have an earthy taste. Infection often starts where a small root is attached (cv.Jewel, Apr80). |
| 1563536 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Storage roots affected by pox are often distorted. Infection started on a small root preventing normal enlargement at the site (cv.Jewel, Nov89).
|
| 1563537 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Severity of pox is enhanced in soil that is dry, high in pH and not fumigated. Compare mass of feeder roots. (cv.Jewel,Jul88).
|
| 1563538 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Severity of pox is enhanced in soil that is dry, high in pH and not fumigated. Compare mass of feeder roots. (cv.Jewel,Jul88).
|
| 1563539 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Severity of pox is enhanced in soil that is dry, high in pH and not fumigated. Compare mass of feeder roots. (cv.Jewel,Jul88).
|
| 1563540 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Severity of pox is enhanced in soil that is dry, high in pH and not fumigated. Compare mass of feeder roots. (cv.Jewel,Jul88).
|
| 1563541 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
The cultivar Beauregard is resistant to pox and does very well, but it is not immune. (Beauregard,Nov89). |
| 1563542 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
The cultivar Beauregard is resistant to pox and does very well, but it is not immune. (Beauregard,Nov89). |
| 1563513 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Pox lesions are crusty, crater shaped and may penetrate 5mm or more into the fleshy root and have an earthy taste. Infection often start where a small root is attached (cv.Jewel, Oct 78). |
| 1563514 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Pox lesions are crusty, crater shaped and may penetrate 5mm or more into the fleshy root and have an earthy taste. Infection often starts where a small root is attached (cv.Jewel, Oct78). |
| 1563515 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Roots harvested from a pox infested field. Notice distorted roots and distribution of pox lesions on the roots. The distribution may be linear as infection often involves the "eyes" on the root (cv.Jewel, Oct79). |
| 5389269 |
cowpea weevil |
Callosobruchus maculatus |
feeding on stored sweet potato seeds |
| 5389270 |
cowpea weevil |
Callosobruchus maculatus |
feeding on stored sweet potato seeds |
| 1563503 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Midseason sweetpotato (cv.Jewel) growing in pox infested soil. Notice irregular growth, wilting, and yellow leaves. (Aug78). |
| 1563505 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
A sweetpotato (cv.Jewel) field severely affected by pox. The field was not harvested. Often weedy fields indicate a pox problem (Oct78).
|
| 1563480 |
southern blight |
Sclerotium rolfsii |
The dry, crusty, circular lesions with sharply defined margins can be popped out. Infection is shallow, 1-5mm. Adjoining tissue is bitter. (Oct78, cv.Jewel) |
| 1563481 |
southern blight |
Sclerotium rolfsii |
The circular lesions are crusty, 1-5mm deep, with sharply defined margin and can be popped out. Infected tissue is bitter. The lesions can be confused with those of Pox. (cv.Jewel, Oct78) |
| 1563509 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Sweetpotato (cv. Centennial) showing pox symptoms on feeder roots, enlarged roots, and underground stems. |
| 1563511 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Pox lesions are crusty, crater shaped and may penetrate 5mm or more into the fleshy root and have an earthy taste (cv.Jewel, Oct78). |
| 1563512 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Pox lesions are crusty, crater shaped and may penetrate 5mm or more into the fleshy root and have an earthy taste. The root on the left is showing pronounced lenticels. (cv.Centennial, Apr74). |
| 1563499 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
A sweetpotato (cv.Jewel) field close to intended harvest severely affected by pox, however the field was not harvested. Often weedy fields indicate a pox problem (Oct78). |
| 1563500 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
A sweetpotato (cv.Jewel) field close to intended harvest severely affected by pox, however the field was not harvested. Often weedy fields indicate a pox problem (Oct78). |
| 1563501 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
A sweetpotato (cv.Jewel) field close to intended harvest severely affected by pox, however the field was not harvested. Often weedy fields indicate a pox problem. Notice poor stand and yellow leaves. (Oct78). |
| 1563490 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Prominent pox lesion on underground stem at junction of feeder roots. Notice steel-gray color on some roots due to the infection and absence of small feeder roots (cv.Jewel, Nov88).
|
| 1563493 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
493 Pox lesions are crusty, crater shaped and may penetrate 5mm or more into the fleshy root and have an earthy taste, and often the storage root is poorly shaped (cv.Jewel, Oct78). |
| 1563496 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
#496 A hot spot of pox in a commercial sweetpotato field in a deep sandy soil. (cv.Jewel, Aug78) |
| 1563497 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Wilting of sweetpotato plants in a commercial sweetpotato field because of much rotting of the feeder roots due to infection by the pox bacterium. Often lower leaves turn yellow. (cv.Jewel, Aug78)
|
| 1563498 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
A severely pox affected sweetpotato field near intended harvest, however the field was not harvested. Often weedy fields indicate a pox problem (cv.Jewel, Oct78).
|
| 1563489 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Pox lesions are crusty, crater shaped and may penetrate 5mm or more into the fleshy root and have an earthy taste.
|
| 1563488 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Pox involves feeder roots and underground stems. Note absence of root hairs, necrotic tissue at end of stem, necrotic areas on roots. (cv.Jewel, Oct75) |
| 1563487 |
Streptomyces soil rot (pox) |
Streptomyces ipomoeae |
Effect of treating soil in infested field with fumigants: check, Vorles, Telone, Vapam, and sodium azide. |
| 1563470 |
black rot |
Ceratocystis fimbriata |
The disease can also involve feeder roots, stems and cause severe losses in the plant bed, field, and in storage. The rot usually does not penetrate deeper than the vascular ring. Tissue near the rot has a bitter taste. Long beacked perithecia with with viscous mass of ascospores at the tip occur on the surface of the rot. (cv. Jewel, Dec82) |
| 1563471 |
black rot |
Ceratocystis fimbriata |
Top root healthy. The disease can also involve feeder roots, stems and cause severe losses in the plant bed, field, and in storage. The rot usually does not penetrate deeper than the vascular ring. Tissue near the rot has a bitter taste. Long beacked perithecia with with viscous mass of ascospores at the tip occur on the surface of the rot. (cv.Centennial) |
| 1563472 |
black rot |
Ceratocystis fimbriata |
The disease can also involve feeder roots, stems and cause severe losses in the plant bed, field, and in storage. The rot usually does not penetrate deeper than the vascular ring. Tissue near the rot has a bitter taste. Long beacked perithecia with with viscous mass of ascospores at the tip occur on the surface of the rot. (cv.PortoRico?) |
| 1563473 |
black rot |
Ceratocystis fimbriata |
The disease can also involve feeder roots, stems and cause severe losses in the plant bed, field, and in storage. The rot usually does not penetrate deeper than the vascular ring. Tissue near the rot has a bitter taste. Long beacked perithecia with with viscous mass of ascospores at the tip occur on the surface of the rot. (cv.PortoRico?) |
| 1563475 |
black rot |
Ceratocystis fimbriata |
The disease can also involve feeder roots, stems and cause severe losses in the plant bed, field, and in storage. The rot usually does not penetrate deeper than the vascular ring. Tissue near the rot has a bitter taste. Long beacked perithecia with with viscous mass of ascospores at the tip occur on the surface of the rot. (cv.Jewel, Dec78) |
| 1563476 |
black rot |
Ceratocystis fimbriata |
The disease can also involve feeder roots, stems and cause severe losses in the plant bed, field, and in storage. The rot usually does not penetrate deeper than the vascular ring. Tissue near the rot has a bitter taste. Long beacked perithecia with with viscous mass of ascospores at the tip occur on the surface of the rot. (cv.Jewel, Dec78) |
| 5411478 |
southern blight |
Sclerotium rolfsii |
|
| 1563459 |
Java black rot |
Lasiodiplodia theobromae |
The fungal pathogen is often called Diplodia tubericola, occasionally Botryodiplodia theobromae. The rot is firm and moist. Look for locules in the stromatic tissue near the surface. It has been a serious storage rot disease that develops rapidy. |
| 1563460 |
Java black rot |
Lasiodiplodia theobromae |
The fungal pathogen is often called Diplodia tubericola, occasionally Botryodiplodia theobromae. The rot is firm and moist. Look for locules in the stromatic tissue near the surface. It has been a serious storage rot disease that develops rapidy. Domes of stromatic, fungal tissue have broken through the epidermis. (Centennial? Feb1970) |
| 1563461 |
Java black rot |
Lasiodiplodia theobromae |
The rot is firm, moist, and black. Look for locules in the stromatic tissue containing spores. It is a serious storage rot that develops rapidly. The fungus is often called Diplodia tubericola. (Jewel, Nov71) |
| 1563462 |
Java black rot |
Lasiodiplodia theobromae |
Photomicrograph of stromatic tissue showing two locules. (Jewel, Feb78) |
| 1563466 |
Java black rot |
Lasiodiplodia theobromae |
The rot is firm, moist, and black. Look for locules in the stromatic tissue containing spores. It is a serious storage rot that develops rapidly. The fungus is often called Diplodia tubericola. |
| 1563468 |
Java black rot |
Lasiodiplodia theobromae |
The rot is firm, moist, and black. Look for locules in the stromatic tissue containing spores. It is a serious storage rot that develops rapidly. The fungus is often called Diplodia tubericola. (Jewel, Apr 78) |
| 1563469 |
Java black rot |
Lasiodiplodia theobromae |
Healthy and mumified roots. The rot is firm, moist, and black. Look for locules in the stromatic tissue containing spores. It is a serious storage rot that develops rapidly. The fungus is often called Diplodia tubericola. (Jewel, Apr 70) |
| 1563456 |
root-knot nematode |
Meloidogyne spp. |
Sweetpotato roots after removal of epidermis at cannery showing reduced lesions caused by the root-knot nematode. Gravid females are visible in a few spots. ('Centennial' Dec66) |
| 1563457 |
root-knot nematode |
Meloidogyne spp. |
Sweetpotato roots showing lesions and deep set eyes caused by the root-knot nematode. ('Centennial' Nov78) |
| 1563454 |
root-knot nematode |
Meloidogyne spp. |
Sweetpotato roots after removal of epidermis at cannery showing lesions caused by the root-knot nematode. ('Centennial' Dec66) |
| 1563455 |
root-knot nematode |
Meloidogyne spp. |
females in processed sweetpotato
Sweetpotato roots after removal of epidermis at cannery showing lesions caused by the root-knot nematode. Gravid females an be seen in the spots. ('Centennial' 1968?) |
| 1563441 |
root-knot nematode |
Meloidogyne spp. |
Slight cracks typical of root knot lesions. (Centennial, Oct1960) |
| 1563442 |
root-knot nematode |
Meloidogyne spp. |
Roots on the left grown in non treated soil, those on the right were grown on soil treated with a fuminant nematicide, dichloroprope dichloropropane? (Jewel Oct1976) |
| 1563443 |
root-knot nematode |
Meloidogyne spp. |
Root-knot lesion on peeled sweetpotatos. Gravid nematodes are usually seen in the lesions as white dots. (Jewel, Oct 1976)) |
| 1563444 |
root-knot nematode |
Meloidogyne spp. |
Root-knot lesions after peeling root in the cannery. Gravid female nematodes can be seen in the lesions as white dots. (Jewel, Oct 1976) |
| 1563445 |
root-knot nematode |
Meloidogyne spp. |
Root-knot lesions and cracking of roots.. (Centennial, Nov 1960) |
| 1563446 |
root-knot nematode |
Meloidogyne spp. |
(Heavily cracked sweetpotato without nematodes. Cracking may be induced by variable soil moisture and nutrient levels. (Centennial, Nov 1960) |
| 1563447 |
pesticides |
|
Standak systemic nematicide injury. (Jewel Jun 1983) |
| 1563448 |
pesticides |
|
Standak systemic nematicide injury. (Jewel Jun 1983) |
| 1563449 |
root-knot nematode |
Meloidogyne spp. |
The newly released cultivar from Louisiana was excellent with resistance to pox but very susceptible to root-knot. Notice pattern in the field at harvest (Beauregard Oct 1991) |
| 1563450 |
root-knot nematode |
Meloidogyne spp. |
Same as previous slide. (Beauregard Oct 1991) |
| 1563451 |
root-knot nematode |
Meloidogyne spp. |
Aerial view of sweetpotato showing field pattern of symptomatic plants. (Beauregard Oct 1991) |
| 1563452 |
root-knot nematode |
Meloidogyne spp. |
Aerial view of symptomatic plant patterns in the field. (Beauregard Oct 1991) |
| 1563453 |
root-knot nematode |
Meloidogyne spp. |
Air crack on upper root and root-knot induced lesions on lower root. (Jewel, Nov 1977) |
| 5411110 |
West Indian sweet potato weevil |
Euscepes postfasciatus |
|
| 5411111 |
West Indian sweet potato weevil |
Euscepes postfasciatus |
|
| 5411108 |
sweetpotato weevil |
Cylas formicarius |
|
| 5411109 |
sweetpotato weevil |
Cylas formicarius |
|
| 1563433 |
root-knot nematode |
Meloidogyne spp. |
Gravid root-knot nematodes embedded at root end of edible root. The nematode can be seen in some of the lesions. (Jewel, Nov78) |
| 1563434 |
root-knot nematode |
Meloidogyne spp. |
Root-knot lesions and galls on feeder roots. (Jewel, Oct88) |
| 1563435 |
root-knot nematode |
Meloidogyne spp. |
Gravid root-knot nematodes embedded at root end of edible root. The nematode can be seen in some of the lesions. (Jewel, Jan 73) |
| 1563437 |
root-knot nematode |
Meloidogyne spp. |
Effect of root-knot nematode on growth of sweetpotato plants in a commercial field. (Centennial, <1965)
|
| 1563405 |
Fusarium damping-off |
Fusarium solani |
(Sep79, Jewel); Fusarium root rot and stem canker. |
| 1563408 |
scurf |
Monilochaetes infuscans |
Scurf lesions on stems of sprouts pulled off of bedded sweetpotatoes with scurf. (Jan73Jewel) |
| 1563409 |
scurf |
Monilochaetes infuscans |
Historic photo of sweetpotatoes with scurf harvested in baskets. (Porto Rico <1965) |
| 1563411 |
scurf |
Monilochaetes infuscans |
Sweetpotato slip used to plant production field. The plant was pulled from a bedded root. |
| 1563413 |
scurf |
Monilochaetes infuscans |
Notice scurf lesion on stem and preponderance of lesions on the stem-end of roots (Nov77 Jewel) |
| 1563414 |
scurf |
Monilochaetes infuscans |
Notice scurf lesions on the stem and preponderance of lesions on the stem-end of the edible roots |
| 1563419 |
scurf |
Monilochaetes infuscans |
Scurf lesions on stem-end of root. (Jewe Nov85l) |
| 1563422 |
scurf |
Monilochaetes infuscans |
Scurf on roots still attached to stem. Notice that scurf is more prevalent on the stem end of the root than on the root end . |
| 1563425 |
scurf |
Monilochaetes infuscans |
Scurf on roots still attached to stem. Notice that scurf is more prevalent on the stem end of the roots than on the root end. The stem on which the roots developed is heavily infected and is the source of inoculum to infect the edible roots. (Jewel Nov77) |
| 1563427 |
scurf |
Monilochaetes infuscans |
Scurfy sweetpotatoes harvested in baskets. (Porto Rico <1960) |
| 1563428 |
scurf |
Monilochaetes infuscans |
Scurfy sweetpotatoes harvested in baskets. (Porto Rico <1960) |
| 1563431 |
root-knot nematode |
Meloidogyne spp. |
Gravid female with many eggs embedded in edible root. (Jewel Nov78) |
| 1563432 |
root-knot nematode |
Meloidogyne spp. |
Gravid female with many eggs embedded in edible root. (Jewel Nov78) |
| 1563396 |
Fusarium damping-off |
Fusarium solani |
(<1970 ); Fusarium Stem and Root Canker |
| 1563403 |
Fusarium damping-off |
Fusarium solani |
(<1970 ); Fusarium Root and Stem Canker |
| 1563404 |
Fusarium damping-off |
Fusarium solani |
(Sep79 ); Fusarium Root and Stem Canker. |
| 1563358 |
Fusarium damping-off |
Fusarium solani |
Fusarium surface rot; Surface continues to develop in storage. It is usually worse during wet periods and when roots are injured. Cultivar 'Jewel' (Oct83) |
| 1563359 |
Fusarium damping-off |
Fusarium solani |
Fusarium root rot continues to develop in storage. It is usually worse during wet periods at harvest and when roots are injured. Cultivar 'Jewel' (1984) |
| 1563360 |
Fusarium damping-off |
Fusarium solani |
Fusarium root rot continues to develop in storage. It is usually worse during wet periods at harvest and when roots are injured. Notice lens shaped cavities with the fungus sporulating Cultivar 'Jewel' (1984) |
| 1563361 |
Fusarium damping-off |
Fusarium solani |
Fusarium root rot continues to develop in storage. It is usually worse during wet periods at harvest and when roots are injured. Notice lens shaped cavities with the fungus sporulating Cultivar 'Jewel' (Apr83) |
| 1563362 |
Fusarium damping-off |
Fusarium solani |
Fusarium root rot continues to develop in storage. It is usually worse during wet periods at harvest and when roots are injured. Notice lens shaped cavities with the fungus sporulating Cultivar 'Jewel' (Apr83) |
| 1563363 |
foot rot |
Plenodomus destruens |
(Sep73) |
| 1563364 |
foot rot |
Plenodomus destruens |
(Sep73) |
| 1563365 |
foot rot |
Plenodomus destruens |
(Aug73) |
| 1563366 |
foot rot |
Plenodomus destruens |
(Sep78) |
| 1563367 |
foot rot |
Plenodomus destruens |
(Sep78) |
| 1563368 |
foot rot |
Plenodomus destruens |
(Sep76) |
| 1563346 |
Fusarium wilt (stem rot) |
Fusarium oxysporum f.sp. batatas |
Fusarium wilt early symptoms: lower leaf yellowing and leaf abscission. |
| 1563347 |
Fusarium wilt (stem rot) |
Fusarium oxysporum f.sp. batatas |
Fusarium wilt symptoms: Apparently nonsymptomatic, death, reduced growth with yellow leaves and leaf fall. |
| 1563348 |
Fusarium wilt (stem rot) |
Fusarium oxysporum f.sp. batatas |
Fusarium wilt symptoms: stem with external necrosis, vascular browning, and foliar yellowing. |
| 1563349 |
Fusarium wilt (stem rot) |
Fusarium oxysporum f.sp. batatas |
Fusarium wilt symptoms: stems with exterior lesion and vascular browning. |
| 1563350 |
Fusarium wilt (stem rot) |
Fusarium oxysporum f.sp. batatas |
Fusarium wilt symptoms: stem with exterior lesion and vascular browning. Notice necrotic root from stem to storage root. CV Centennial? (<1960) |
| 1563351 |
Fusarium wilt (stem rot) |
Fusarium oxysporum f.sp. batatas |
Fusarium wilt symptoms: Notice necrotic tissue at proximal end of storage and necrosis on sprouts. CV Centennial? (<1960). |
| 1563352 |
Fusarium wilt (stem rot) |
Fusarium oxysporum f.sp. batatas |
A young transplant showing severe Fusarium wilt symptoms: necrotic feeded roots, vascular browning, dead and yellowing leaves. cv. Porto Rico? (<1960). |
| 1563353 |
Fusarium wilt (stem rot) |
Fusarium oxysporum f.sp. batatas |
Storage root showing vascular browning. cv. Porto Rico? (<1960). |
| 1563354 |
Fusarium root rot and wilt |
Fusarium oxysporum |
Fusarium surface rot. cv. Centennial (Apr-64). |
| 1563355 |
Fusarium root rot and wilt |
Fusarium oxysporum |
Fusarium surface rot. cv. Centennial (Apr-64). |
| 1563356 |
Fusarium root rot and wilt |
Fusarium oxysporum |
Fusarium surface rot. cv. GoldRush (Apr-64). |
| 1563357 |
Fusarium damping-off |
Fusarium solani |
Fusarium root rot. Notice lens shappeed cavities or locules in necrotic tissue with abundand mycelium and spores. cv. Jewel (Apr-77). |
| 1563341 |
Fusarium damping-off |
Fusarium solani |
Distal end rot developed after curing during storage. (Apr78) |
| 1563342 |
Fusarium damping-off |
Fusarium solani |
Distal end rot developed after curing during storage. (Apr78) |
| 1563343 |
Fusarium damping-off |
Fusarium solani |
Distal end rot developed after curing during storage. Internal symptoms. (Apr78) |
| 1563344 |
Fusarium damping-off |
Fusarium solani |
Distal end rot developed after curing during storage. (Apr78) |
| 1563345 |
Fusarium damping-off |
Fusarium solani |
Distal end rot developed after curing during storage. (Apr78) |
| 1563327 |
bread mold |
Rhizopus stolonifer |
Photomicrograph (ca. 400x) sporangia and sporangiopores of Rhizopus, the cause of Rhizopus soft rot in sweetpotatoes and other vegetables. |
| 1563328 |
bread mold |
Rhizopus stolonifer |
Photomicrograph (ca. 1000x) sporangia and sporangiopores of Rhizopus, the cause of Rhizopus soft rot in sweetpotatoes and other vegetables. |
| 1563329 |
bread mold |
Rhizopus stolonifer |
Photomicrograph (ca. 1000x) sporangia and sporangiopores of Rhizopus, the cause of Rhizopus soft rot in sweetpotatoes and other vegetables. |
| 1563330 |
bread mold |
Rhizopus stolonifer |
Photomicrograph (ca. 1000x) sporangiospores of Rhizopus, the cause of Rhizopus soft rot in sweetpotatoes and other vegetables. |
| 1563331 |
Fusarium damping-off |
Fusarium solani |
Fusarium root rot caused by Fusarium solani. The reddish mass is the perfect state, Nentria. |
| 1563332 |
Fusarium damping-off |
Fusarium solani |
Fusarium root rot. |
| 1563333 |
Fusarium damping-off |
Fusarium solani |
Fusarium root rot |
| 1563334 |
Fusarium damping-off |
Fusarium solani |
Fusarium root rot |
| 1563335 |
Fusarium damping-off |
Fusarium solani |
Fusarium root rot. |
| 1563336 |
Fusarium damping-off |
Fusarium solani |
Fusarium root rot, internal symptoms. |
| 1563337 |
Fusarium damping-off |
Fusarium solani |
Fusarium root rot internal symptomes. |
| 1563338 |
Fusarium damping-off |
Fusarium solani |
Fusarium root rot. |
| 1563339 |
Fusarium damping-off |
Fusarium solani |
Fusarium root rot. |
| 1563340 |
Fusarium damping-off |
Fusarium solani |
Jewel, distal end rot. |
| 1563312 |
bread mold |
Rhizopus stolonifer |
Rhizopus soft rot showing profusion of aerial mycelia on the surface of a diseased root. |
| 1563314 |
bread mold |
Rhizopus stolonifer |
Roots in storage with Rhizopus soft rot. |
| 1563315 |
bread mold |
Rhizopus stolonifer |
Rhizopus soft rot on roots in storage showing profusion of aerial mycelia and presence of black spore masses. |
| 1563316 |
bread mold |
Rhizopus stolonifer |
Rhizopus soft rot on root in storage showing profusion of aerial mycelia and presence of black spore masses. |
| 1563317 |
bread mold |
Rhizopus stolonifer |
Rhizopus soft rot on root in storage showing profusion of aerial mycelia prior to formation of black spore masses. Upper root is healthy. |
| 1563318 |
bread mold |
Rhizopus stolonifer |
Rhizopus soft rot on root in storage showing aerial mycelia and presence of black spore masses. |
| 1563319 |
bread mold |
Rhizopus stolonifer |
Rhizopus soft rot on root in storage showing profusion of aerial mycelia and presence of black spore masses. Lower root is healthy. |
| 1563320 |
bread mold |
Rhizopus stolonifer |
Root with Rhizopus soft showing interior of the root. The tissue is very soft, often drippy with a pleasant odor. |
| 1563321 |
bread mold |
Rhizopus stolonifer |
Roots out of storage with soft rot and possible water damage in the field. Cultivar Porto Rico?. (Nov77) |
| 1563322 |
bread mold |
Rhizopus stolonifer |
Sweetpotato out of storage with soft rot. Roots may have been damaged in the field by wet conditions. Cultivar may be Porto Rico (Nov77). |
| 1563323 |
bread mold |
Rhizopus stolonifer |
Sweetpotato out of storage with soft rot. Roots may have been damaged in the field by wet conditions. Cultivar may be Porto Rico. Roots incubated in a moist chamber (Nov77). |
| 1563324 |
bread mold |
Rhizopus stolonifer |
Sweetpotato out of storage with soft rot. Cultivar may be Pope. Roots incubated in a moist chamber (Nov77). |
| 1563325 |
bread mold |
Rhizopus stolonifer |
Sweetpotato out of storage with soft rot. Cultivar may be Pope (Nov77). |
| 1563326 |
bread mold |
Rhizopus stolonifer |
Sweetpotato out of storage with soft rot. Roots may have been damaged in the field by wet conditions. Cultivar may be Centennial. (Nov77). |
| 1563281 |
sweetpotato |
Ipomoea batatas |
Barn storage and 20bushel crates in background (Oct77). |
| 1563266 |
sweetpotato |
Ipomoea batatas |
Harvester placing harvested roots in trailer. The adjustable conveyor is designed to minimize injuries to roots caused by long drops. |
| 1563267 |
sweetpotato |
Ipomoea batatas |
Harvester placing harvested roots in trailer. The adjustable conveyor is designed to minimize injuries to roots caused by long drops. Close up of hydraulic adjustment. (Nov75) |
| 1563269 |
sweetpotato |
Ipomoea batatas |
Harvester placing harvested roots in trailer. The adjustable conveyor is designed to minimize injuries to roots caused by long drops. (Nov75) |
| 1563270 |
sweetpotato |
Ipomoea batatas |
Harvesting boxes; 1 bushel equals 60 pounds. Cultivar 'Pope' (Nov69). |
| 1563291 |
sweetpotato |
Ipomoea batatas |
Roots emerging from lye peeler. Notice off type color of roots (Oct75). |
| 1563294 |
sweetpotato |
Ipomoea batatas |
Sheet of sweetpotato pure for flakes (Oct75). |
| 1563295 |
sweetpotato |
Ipomoea batatas |
Cutting belt |
| 1563298 |
sweetpotato |
Ipomoea batatas |
Prize baskets of Porto Rico sweetpotatoes; Yam Festival in Tabor City,NC; 1948. |
| 1563309 |
bread mold |
Rhizopus stolonifer |
Rhizopus soft rot is the most common disease found in stored sweetpotatoes. The rot is soft, wet and often white, whiskery fungal growth covers the tissue. Later black spores develop. |
| 1563310 |
bread mold |
Rhizopus stolonifer |
Rhizopus soft rot is the most common disease found in stored sweetpotatoes. The rot is soft, wet and often white, whiskery fungal growth covers the tissue. Later black spores develop. |
| 1563311 |
bread mold |
Rhizopus stolonifer |
Cv Jewel. Rhizopus soft rot is the most common disease found in stored sweetpotatoes. The rot is soft, wet and often white, whiskery fungal growth covers the tissue. Later black spores develop. (May73) |
| 1563261 |
sweetpotato |
Ipomoea batatas |
In-field harvester/sorter/grader; very mobile (Oct75).
|
| 1563262 |
sweetpotato |
Ipomoea batatas |
In-field harvester/sorter/grader diggins roots after the vines were mowed (Oct75). |
| 1563264 |
sweetpotato |
Ipomoea batatas |
Harvester diggins roots and lowering them them into a trailer. (Oct75). |
| 1563265 |
sweetpotato |
Ipomoea batatas |
Harvester designed to dig and lower roots trailer with minimal drop to avoid injuries to the sweetpotatoes. (Oct75). |
| 1563246 |
sweetpotato |
Ipomoea batatas |
Transplanting. Two persons alternate in placing cuttings for planting in one row. County Agent P. Westerbeek third from left. (Jun90). |
| 1563247 |
sweetpotato |
Ipomoea batatas |
Transplanting. Top of the row is sheared off prior to planting the cutting. (Jun90). |
| 1563248 |
sweetpotato |
Ipomoea batatas |
Transplanting. The top of the row is sheared off prior to placing the cutting in the planter. (Jun90). |
| 1563249 |
sweetpotato |
Ipomoea batatas |
Transplanting. Details of planter. (Jun90). |
| 1563205 |
sweetpotato |
Ipomoea batatas |
Effect of seed treatment |
| 1563181 |
sweetpotato |
Ipomoea batatas |
Sweetpotato 'Jewel' packout of quality product after storage. July1976 |
| 1563182 |
sweetpotato |
Ipomoea batatas |
Sweetpotato roots after storage ready for shipment. "Jewel." Apr76 |
| 1563183 |
sweetpotato |
Ipomoea batatas |
|
| 1563184 |
sweetpotato |
Ipomoea batatas |
Sweetpotato after storage and waxing ready for shipment. Apr76 |
| 1563185 |
sweetpotato |
Ipomoea batatas |
Sweetpotato 'Jewel' roots after storage and waxing for shipment to markets, Apr76. |
| 1563186 |
sweetpotato |
Ipomoea batatas |
Display of sweetpotato 'Jewel' roots and information on uses and nutritional value May78. |
| 1563187 |
sweetpotato |
Ipomoea batatas |
Sweetpotato 'Jewel' roots after storage for shipment to markets in a Yam Commission carton. For years sweetpotatoes were called Yams. This was a misnomer so the name was changed to North Carolina Sweetpotato Commission, Apr76. |
| 1563188 |
sweetpotato |
Ipomoea batatas |
Sweetpotato 'Jewel' roots after storage and washing for shipment to markets, Apr76. |
| 1563191 |
sweetpotato |
Ipomoea batatas |
Sweetpotato being irrigated. Actually, sweetpotato fields are usually not irrigated. 'Jewel' roots after storage and waxing for shipment to markets, Sep68. |
| 1563192 |
sweetpotato |
Ipomoea batatas |
Five sweetpotato (Ipomoea batatas) roots compared to one yam (Dioscorea spp.) root. Although both are roots, the plants are not even distantly relate; the sweetpotato is a Dicot while the yam is a Monocot. |
| 1563194 |
sweetpotato |
Ipomoea batatas |
Typical sign of sweetpotato grower in eastern North Carolina. |
| 1563195 |
sweetpotato |
Ipomoea batatas |
Sweetpotato roots after curing, washing, grading and packing in cardboard cartons ready for shipment to retail markets. The tern "yam" refers to the moist, orange type sweetpotato. |
| 1563196 |
sweetpotato |
Ipomoea batatas |
Trellised sweetpotato plants used by plant breeder to develop improved cultivars.~1974 . |
| 1563229 |
sweetpotato |
Ipomoea batatas |
|
| 1563232 |
sweetpotato |
Ipomoea batatas |
Planting sweet potatoes with cut plants in late spring. |
| 1563243 |
genetic abnormalities |
|
Mutation or chimeras. Sprouts from chimeras and used for planting will produce a crop of roots with that color. A serious problem. |
| 1563244 |
sweetpotato |
Ipomoea batatas |
planter; ready for planting at fumigation test; Jewel/Beauregard |
| 1563245 |
sweetpotato |
Ipomoea batatas |
Transplanter with cut vines for planting. Two persons alternate planting one row. Jun90. |
| 1435029 |
sweetpotato weevil |
Cylas formicarius |
Adults are ant-like, shiny, blue-black, snout beetles whose "waist" and legs are bright orange-red. They are about 6 mm long. |
| 1435030 |
sweetpotato weevil |
Cylas formicarius |
on sweet potato |
| 5389272 |
cowpea weevil |
Callosobruchus maculatus |
|
| 5389271 |
cowpea weevil |
Callosobruchus maculatus |
|
| 5333051 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5368525 |
fasciation |
|
Vines become extremely wide but remain flat in cross section. Fasciated vine appears as if many vines were fused together. |
| 5368526 |
fasciation |
|
Vines become extremely wide but remain flat in cross section. Fasciated vine appears as if many vines were fused together. |
| 5333052 |
root-knot nematode |
Meloidogyne spp. |
|
| 5333050 |
scurf |
Monilochaetes infuscans |
|
| 1263013 |
sweetpotato whitefly |
Bemisia tabaci |
Imago |
| 1263014 |
sweetpotato whitefly |
Bemisia tabaci |
Fourth instar larva |
| 0746018 |
sweetpotato whitefly |
Bemisia tabaci |
Operculum and ligule of Bemisia tabaci. |
| 0746019 |
greenhouse whitefly |
Trialeurodes vaporariorum |
Pygidium of puparium of Trialeurodes vaporariorum. |
| 0746020 |
greenhouse whitefly |
Trialeurodes vaporariorum |
Operculum and ligule of Trialeurodes vaporariorum. |
| 0746014 |
sweetpotato whitefly |
Bemisia tabaci |
Adult of Bemisia tabaci. |
| 0746015 |
sweetpotato whitefly |
Bemisia tabaci |
Adult of Bemisia tabaci. |
| 0746016 |
sweetpotato whitefly |
Bemisia tabaci |
Puparium of Bemisia tabaci. |
| 0746017 |
sweetpotato whitefly |
Bemisia tabaci |
Pygidium of puparium of Bemisia tabaci. |
| 0660071 |
sweetpotato whitefly |
Bemisia tabaci |
L5 nymph of Bemisia tabaci. |
| 5369710 |
whitefringed beetle |
Naupactus peregrinus |
typical damage with larvae present |
| 5369711 |
whitefringed beetle |
Naupactus peregrinus |
|
| 5369712 |
whitefringed beetle |
Naupactus peregrinus |
|
| 5368079 |
sweetpotato weevil |
Cylas formicarius |
|
| 5368068 |
sweetpotato weevil |
Cylas formicarius |
|
| 5192100 |
sweetpotato weevil |
Cylas formicarius |
|
| 5193001 |
sweetpotato weevil |
Cylas formicarius |
|
| 5193002 |
sweetpotato weevil |
Cylas formicarius |
|
| 0177095 |
sweetpotato whitefly |
Bemisia tabaci |
Adult whiteflies on leaf. |
| 0177096 |
sweetpotato whitefly |
Bemisia tabaci |
Puparia on poinsettia leaf. |
| 0177097 |
sweetpotato whitefly |
Bemisia tabaci |
Puparia and empty cases on poinsettia leaf. |
| 1435110 |
banded cucumber beetle |
Diabrotica balteata |
|
| 3413083 |
sweetpotato weevil |
Cylas formicarius |
and larva |
