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EENY131: Asian Ambrosia Beetle, Granulate Ambrosia Beetle (no official common name), Xylosandrus crassiusculus (Motschulsky) (Insecta: Curculionidae: Scolytinae)

Figure 5. Asiatic 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.