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Title: Ambrosia Beetle (Coleoptera: Scolytidae) species, flight, and attack on living eastern cottonwood trees

Author: Coyle, David R.; Booth, Derek C.; Wallace, M. S.;

Date: 2005

Source: J. Econ. Entomol. 98(6): 2049-2057

Publication Series: Miscellaneous Publication

Description: In spring 2002, ambrosia beetles (Coleoptera: Scolytidae) infested an intensively managed 22-ha tree plantation on the upper coastal plain of South Carolina. Nearly 3,500 scolytids representing 28 species were captured in ethanol-baited traps from 18 June 2002 to 18 April 2004. More than 88% of total captures were exotic species. Five species [Dryoxylon onoharaensum (Murayama), Euwallacea validus (Eichhoff), Pseudopityophthorus minutissimus (Zimmermann), Xyleborus atratus Eichhoff, and Xyleborus impressus Eichhoff]) were collected in South Carolina for the first time. Of four tree species in the plantation, eastern cottonwood, Populus deltoids Bartram, was the only one attacked, with nearly 40% of the trees sustaining ambrosia beetle damage. Clone ST66 sustained more damage than clone S7C15. ST66 trees receiving fertilization were attacked more frequently than trees receiving irrigation, irrigation_fertilization, or controls, although the number of S7C15 trees attacked did not differ among treatments. The study location is near major shipping ports; our results demonstrate the necessity for intensive monitoring programs to determine the arrival, spread, ecology, and impact of exotic scolytids.

Keywords: ethanol, fertilization, invasive species, Populus deltoides xyleborini

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Coyle, David R.; Booth, Derek C.; Wallace, M. S. 2005. Ambrosia Beetle (Coleoptera: Scolytidae) species, flight, and attack on living eastern cottonwood trees. J. Econ. Entomol. 98(6): 2049-2057

 


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