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black twig borer - Xylosandrus compactus (Eichhoff)
Univ of Florida Entomology — These two species can also be distinguished based on the location of their galleries. X. compactus, the black twig borer, attacks twigs less than 2 cm diameter, whereas crassiusculus infests larger twigs, branches and stems 2 to 8 cm in diameter. ...More…
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Dogwood Twig Borer
Virginia Tech Extension — The larvae tunnel in live twigs and feed down the center of the branch, making a long series of closely placed round holes for the exudation of frass. Periodically, the larvae cut off portions of the twig from within and continue to feed inside ...More…
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Boxelder Twig Borer
University of Kentucky — The boxelder twig borer, a small whitish yellow caterpillar with a dark head, destroys the buds and tender shoots of boxelder and red maple. Feeding by this insect can cause trees to become bushy and to lose their natural shape. By the time ...More…
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NCSU: ENT/ort-106 BLACK TWIG BORER
NC State University Coop Extension — BLACK TWIG BORER, Xylosandrus compactus (Eichhoff), Scolytidae, COLEOPTERA Black twig borers drill into the thin twigs of dogwood, grape, magnolia, live oak, laurel oak and many other plants from shade trees to orchids. Seemingly healthy plants ...More…
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Boxelder Twig Borer
University of Kentucky — The boxelder twig borer, a small whitish yellow caterpillar with a dark head, destroys the buds and tender shoots of boxelder and red maple. Feeding by this insect can cause trees to become bushy and to lose their natural shape. By the time ...More…