Agrilus bilineatus(AGRLBL)
Photos
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Larval galleries in the cambial region of a northern pin oak, Quercus ellipsoidalis (Pine County - St. Croix State Park in Minnesota, USA)
Courtesy: Steve A. Katovich, USDA Forest Service.Infested Northern pin oak, Quercus ellipsoidalis, killed in about 1 year (Pine County - St. Croix State Park in Minnesota, USA).
Courtesy: Steve A. Katovich, USDA Forest Service.4th instar larva and galleries in cambial region of Northern pin oak, Quercus ellipsoidalis (Pine County - St. Croix State Park in Minnesota, USA)
Courtesy: Steve A. Katovich, USDA Forest Service.Pupa transforming to adult in pupal cell in oak bark.
Courtesy: Robert A Haack (USDA Forest Service)Eggs of various ageswhite to red to tan and slight with 4 slighty larger eggs of A. planipennis on bark cutouts
Courtesy: Deborah L. Miller, USDA Forest Service.TLCB Male on left with groove on 2nd abdominal sternite Female on right with no groove
Courtesy: Robert A Haack (USDA Forest Service)Egg lain in lab on oak stick wrapped with ribbon to simulate back cracks
Courtesy: Deborah L. Miller, USDA Forest Service.Head of fourth instar larva (note bifurcation at posterior end of central prothoracic groove)
Courtesy: Toby R Petrice (USDA Forest Service)Infested Northern pin oak, Quercus ellipsoidalis, that died over at least 2 years after first infestation (Pine County - St. Croix State Park in Minnesota, USA)
Courtesy: Steve A. Katovich, USDA Forest Service.