Insect Borers of Trees and Shrubs | Entomology
https://entomology.ca.uky.edu/ent43
ConservationLife cycleSymptomsPreventionManagementUseHabitatBehaviorEcologyOverviewDescriptionSummarySafetyBronze birch borer (Agrilus anxius) is a severe pest of white or paper birch in the landscape. Symptoms include twig and branch dieback starting in the upper 1/3 of the tree. With successive years of attack, the tree becomes progressively weaker until it is killed. Dead or dying limbs will have numerous D-shaped adult exit holes, each about the siz...See more on entomology.ca.uky.eduExplore Bronze birch borer (Agrilus anxius) is a severe pest of white or paper birch in the landscape. Symptoms include twig and branch dieback starting in the upper 1/3 of the tree. With successive years of attack, the tree becomes progressively weaker until it is killed. Dead or dying limbs will have numerous D-shaped adult exit holes, each about the siz...
Bronze birch borer (Agrilus anxius) is a severe pest of white or paper birch in the landscape. Symptoms include twig and branch dieback starting in the upper 1/3 of the tree. With successive years of attack, the tree becomes progressively weaker until it is killed. Dead or dying limbs will have numerous D-shaped adult exit holes, each about the siz...
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