red oak borer
Enaphalodes rufulus (Haldeman, 1847)

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    University of Arkansas Forest Entomology Lab Archive (27)
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Image Descriptor Description
5025054 Damage Red oak borer adult emergence holes on a northern red oak, Quercus rubra L., in the Ozark National Forest, Arkansas.
5025063 Indicator(s) Red oak borer frass at the base of a northern red oak, Quercus rubra L., in the Ozark National Forest, Arkansas
5025062 Indicator(s) Red oak borer frass at the base of a northern red oak, Quercus rubra L., in the Ozark National Forest, Arkansas.
0007078 Adult(s) A mating pair
5449401 Galleries Red oak borer larval galleries in northern red oak.
1394031 Larva(e)
0590079 Damage
0014064 Damage exit holes, June 2001
0014065 Damage stem damage, June 2001
0014066 Damage stand damage, June 2001
0014067 Damage stand damage, June 2001
0007077 Adult(s) When adult red oak borers begin to emerge in late June, populations are so high that it is easy to find mating pairs on understory vegetation and on the trunks of oak trees.
1748019 Adult(s)
3067053 Damage overgrown bark scar
0007080 Damage Larval tunnels of the red oak borer rendered oak lumber basically unusable.
5046013 Symptoms Attack on bole
3067055 Damage attack scars
3067051 Damage bark scars
3067050 Damage lateral scars left by borers
0014059 Adult(s) male, June 2001
3036095 Damage old damage at base of tree
0007076 Damage It is at outbreak levels in the area and characteristic signs of attack include "wet spots" where young larva are feeding under the bark.
0014062 Damage boring damage, June 2001
0014060 Adult(s) female and male mating pair, June 2001
5423781 Adult(s)
5423782 Adult(s)
0010092 Damage The bark has been stripped from this red oak so as to show the borer activity occuring. Note the large number of bore holes in the stem.
0010093 Damage This red oak had died and the bark was peeling off the tree.
0010094 Damage This is a cross sectional cut of the bole of a red oak, showing some tunneling and pupal chambers of the borer.
5205017 Adult(s) Collection information: Illinois: Coles Co.; 21-Jul-85
5205018 Adult(s) Collection information: Illinois: Coles Co.; 21-Jul-85
5031033 Galleries with quarter for scale
5031034 Damage
5031035 Damage
5031036 Damage
5031038 Damage
5046014 Damage
5046015 Damage
5077094 Egg(s) Lab set-up of 1/2 m northern red oak bolts in wood and wire mesh cages with male and female red oak borer added for egg/neonate production. Vials contain sugar water.
5077095 Larva(e) Neonate red oak borer larva were ca. 2.5 mm in length
5045075 Symptoms
5025071 Galleries Red oak borer gallery in a white oak taken from the Ozark National Forest, Arkansas.
5025072 Galleries Red oak borer gallery in a white oak taken from the Ozark National Forest, Arkansas
5025066 Larva(e) A dead early instar red oak borer larva found in fermenting liquid in a phloem-feeding gallery upon bark removal from a northern red oak, Quercus rubra L., taken from the Ozark National Forest, Arkansas. Field observations indicate fermentation was associated with nitidulid beetle larvae.
5025070 Larva(e)
5025050 Damage Red oak borer larval attack holes are on a northern red oak, Quercus rubra L., in the Ozark National Forest of Arkansas.
5025051 Damage Red oak borer damage in northern red oak, Quercus rubra L., in the Ozark National Forest, Arkansas
5025052 Larva(e) Red oak borer larvae feeding in phloem tissue of a northern red oak, Quercus rubra L., taken in the fall of 2001 from the Ozark National Forest, Arkansas
5025053 Egg(s) Red oak borer eggs on a half meter northern red oak, Quercus rubra L., bolt. Bolts were wrapped in gauze and placed in a wood and screen cage. Adult pairs were caught using black lights in the field and put in the cage with sugar water. Females oviposted through gauze.
5025055 Damage Red oak borer emergence holes on a northern red oak, Quercus rubra L., in the Ozark National Forest, Arkansas
5025056 Damage Initial scraping of the outer bark from a northern red oak, Quercus rubra L., taken from the Ozark National forest, revealed a red oak borer phloem-feeding gallery.
5025057 Damage Further scraping of the outer bark from a northern red oak, Quercus rubra L., taken from the Ozark National forest, to reveal a red oak borer phloem-feeding gallery.
5025058 Damage Final scraping of the outer bark from a northern red oak, Quercus rubra L., taken from the Ozark National forest, revealed a live red oak borer larvae in its phloem-feeding gallery.
5025059 Galleries Bulges and scar tissue are evidence of red oak borer previous generation galleries on a northern red oak, Quercus rubra L., taken from the Ozark National Forest, Arkansas.
5025060 Galleries Chiseling of bulges and scar tissue reveal red oak borer previous generation galleries on a northern red oak, Quercus rubra L., taken from the Ozark National Forest, Arkansas.
5025061 Larva(e) Red oak borer larva excavated from a northern red oak, Quercus rubra L., in the Ouachita National Forest, Arkansas
5025049 Adult(s) This was a male specimen from which the pin was removed for photographing by Dana Kinney.
5025064 Trap(s) Adult red oak borer flight intercept trap in the Ozark National Forest, Arkansas. These were obtained from IPM Technologies, Portland, OR.
5025065 Adult(s) mating on tent
5025067 Pupa(e) new pupa
5025068 Adult(s) pharate adult
5025069 Pupa(e)
5025073 Life Cycle Artwork by Dana Kinney. Published in Fierke et al., 2005, "Development and comparison of intensive and extensive sampling methods and preliminary within-tree population extimates of red oak borer (Coleoptera: Cerambycidae) in the Ozark Mountains of Arkansas", Environmental Entomology 34:184-192.
0014061 Adult(s) mating pair, June 2001
0014063 Damage June 2001
0014057 Adult(s) male with glocous covering, June 2001
0014058 Adult(s) male without glocous covering, June 2001
0010095 Damage entrance/exit holes with peppermint for size reference
0007075 Damage Red oak mortality has been observed for the past several years (2001). Drought, shallow soils, hypoxylon canker, certain insects, and other factors have lead to this decline complex.
0007079 Damage Frass associated with the emergence of adult borers often collects on the leaves of understory vegetation.
3067052 Damage L-shaped bark scars
3067054 Damage in board
3046015 Damage
0284069 Adult(s) male (left) and female (right)
0949062 Larva(e)
0949063 Larva(e) damage to scarlet oak
1748056 Damage
0590042 Damage exit hole with slime flux associate
0355001 Adult(s)

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