| 5449453 |
hemlock woolly adelgid |
Adelges tsugae |
An adult hemlock woolly adelgid, Adelges tsugae, removed from its host plant and cleaned for imaging.
Host: Tsuga canadensis |
| 5449454 |
hemlock woolly adelgid |
Adelges tsugae |
Host: Tsuga canadensis |
| 5449455 |
hemlock woolly adelgid |
Adelges tsugae |
Settled on host plant |
| 1546035 |
redheaded pine sawfly |
Neodiprion lecontei |
comparison of early and late instar larval defoliation |
| 1543092 |
southern pine beetle |
Dendroctonus frontalis |
|
| 5408716 |
Phytophthora root and crown rots |
Phytophthora spp. |
Image shows samples of field soil (25 cm2) from Fraser fir production sites, flooded with 40 ml of distilled water. Rhododendron leaf disks were floated on the water surface as a bait for zoospores of Phytophthora spp. Leaf disks are typically removed after 24 hours and plated on selective medium for detection of Phytophthora. |
| 5408717 |
Phytophthora root rot |
Phytophthora cinnamomi |
Phytophthora cinnamomi growing from Fraser fir root samples on PARPH-V8 agar, approximately 48 hours after plating. |
| 5408718 |
Phytophthora root rot |
Phytophthora cinnamomi |
Phytophthora cinnamomi growing from Fraser fir root samples on PARPH-V8 agar, approximately 48 hours after plating. |
| 1543209 |
southern pine sawyer |
Monochamus titillator |
|
| 1549113 |
giant conifer aphids |
Cinara spp. |
|
| 1549111 |
giant conifer aphids |
Cinara spp. |
|