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Apricot Pest-Branch and Twig Borer

From UC IPM Melalgus (= Polycaon) confertus The branch and twig borer is a slender brown beetle about 0.5 to 0.66 inch long. The body is cylindrical and the head and prothorax are narrower than the body proper. The beetle lays its eggs in the dead wood of a number of native and cultivated trees and shrubs outside the orchard. The larvae bore into the heartwood of the host and feed within this area for a year or possibly longer. Pupation occurs within the wood and adults emerge in early summer. They often fly to orchards where they bore into small branches on the trees. There is one generation per year.

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