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1 February 2010 Response of Tomicus yunnanensis (Coleoptera: Scolytinae) to Infested and Uninfested Pinus yunnanensis Bolts
Hui Liu, Zhen Zhang, Hui Ye, Hongbin Wang, Stephen R. Clarke, Lu Jun
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Abstract

Tomicus yunnanensis Kirkendall and Faccoli (Coleoptera: Curculionidae: Scolytinae) is a newly described pine shoot beetle found in southwestern China. This beetle has affected >200,000 ha of Pinus yunnanensis (Franchet) forests over the past 30 yr. After maturation feeding in the shoots, adults attack the boles in December to produce a new generation. A hanging bolt study was initiated in November 2006 to detect the beetle flight patterns and to test if dispersing beetles respond to infested and uninfested material. Treatments tested were females only, males only, male and female pairs, and uninfested bolts. Beetles were collected on the bolts between 9:30 and 18:30, with peak catch in the afternoon between 14:00 and 18:30. No beetles were collected during the dark. Though trunk attacks in the field were observed in November, beetles were first collected on the bolts in January. No beetles were captured after March. Differences in numbers of beetles collected between treatments with infested bolts varied by month, but uninfested bolts always attracted fewer adults.

© 2010 Entomological Society of America
Hui Liu, Zhen Zhang, Hui Ye, Hongbin Wang, Stephen R. Clarke, and Lu Jun "Response of Tomicus yunnanensis (Coleoptera: Scolytinae) to Infested and Uninfested Pinus yunnanensis Bolts," Journal of Economic Entomology 103(1), 95-100, (1 February 2010). https://doi.org/10.1603/EC09080
Received: 19 March 2009; Accepted: 1 October 2009; Published: 1 February 2010
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