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Publication Information

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Title: Climate matching: implications for the biological control of hemlock woolly adelgid

Author: Trotter, R. Talbot III.

Date: 2008

Source: In: Onken, Brad; Reardon, Richard, comps. Fourth Symposium on hemlock woolly adelgid in the eastern United States; 2008 February 12-14; Hartford, CT. FHTET 2008-01. Morgantown, WV: U.S. Forest Service, Forest Health Technology Enterprise Team: 141-146.

Publication Series: Other

Description: Classical biological control programs are faced with a daunting challenge: inserting a new species into an existing ecological system. In order for the newly introduced biological control species to survive and reproduce, the recipient ecosystem must provide the required biotic and abiotic requirements. The Adelgid Biological Control simulator (ABCs), a simulation program built to help evaluate the suitability of biological control species for the control of the hemlock woolly adelgid (Adelges tsugae), indicates that the Asian predatory beetle Scymnus sinuanodulus, imported to control the adelgid, can complete one generation annually, and that the production of a second generation is limited, not by the availability of warmth or prey, but by the need for adults to experience low temperatures to trigger oviposition. These findings support the use of a pre-conditioning regime in which adult beetles are first exposed to low temperatures prior to release to ensure oviposition begins in the year of release.

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Citation:


Trotter, R. Talbot III. 2008. Climate matching: implications for the biological control of hemlock woolly adelgid. In: Onken, Brad; Reardon, Richard, comps. Fourth Symposium on hemlock woolly adelgid in the eastern United States; 2008 February 12-14; Hartford, CT. FHTET 2008-01. Morgantown, WV: U.S. Forest Service, Forest Health Technology Enterprise Team: 141-146.

 


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