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EENY131: Granulate Ambrosia Beetle, Xylosandrus crassiusculus (Motschulsky) (Insecta: Coleoptera: Curculionidae: Scolytinae)

Figure 5. The granulate ambrosia beetles, Xylosandrus crassiusculus (Motschulsky), attack the trunk of the tree and push the frass out of galleries in a typical toothpick fashion. The beetles innoculate the galleries with ambrosia fungus on which the brood feeds.

Credit: R.F. Mizell, University of Florida