Other beetles caught in Asian ambrosia beetle trap; timing the spray
Q: Is it correct to say that if a Fruit-tree Pinhole Borer beetle (Xyleborinus saxesenii) found in a simple ethanol-baited trap in early Feb it would indicate that granulate (Asian) ambrosia beetle (Xylosandrus crassiusculus) is also present…and that a preventative spray with insecticide should be applied?
Is there an insecticide available to homeowners that is best?
A: Yes. I think the statement is reasonable.
Pyrethroids both kill and repel the borers. Insecticides with active ingredient permethrin or bifenthrin have been shown to work. Other pyrethroids in the market such as deltamethrin, zeta-cypermethrin, lambda-cyhalothrin should have some efficacy too. These insecticides are sold under several brand names in big box stores.
Shimat Joseph
Assistant Professor
University of Georgia | Department of Entomology
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