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Tomicus piniperda (Coleoptera: Scolytidae) reproduction and development in Scots, jack, red and eastern white pine under laboratory conditionsAuthor(s): Hui Ye; Robert A. Haack; Toby R. Petrice
Source: The Great Lakes Entomologist. 38. 13-22.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
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DescriptionThe pine shoot beetle, Tomicus piniperda (L.) (Coleoptera: Scolytidae), is an exotic bark beetle in North America that was first found in the Great Lakes region in 1992. We evaluated T. piniperda reproduction and development in one Eurasian pine (Scots pine, Pinus sylvestris L.) and three North American pines (jack pine, P. banksiana Lamb.; red pine, P. resinosa Ait.; and eastern white pine, P. strobus L.) under laboratory conditions. We introduced one pair of adults into individual pine bolts, allowed development, collected brood, and later debarked all bolts and measured galleries. Reproduction and development occurred in all pine species tested. Mean phloem thickness varied significantly among the bolts used to represent the four pine species; it was thickest in red pine (1.3 mm) and thinnest in jack pine (0.6 mm). Linear regression analysis indicated that initial brood production (larval galleries per cm of egg gallery) increased significantly with increasing phloem thickness (r2 = 0.36), using the pooled data set for all four pine species. Using phloem thickness as a covariate, mean initial brood density (larval galleries per cm of gallery) was significantly highest on red pine, intermediate on Scots pine and white pine, and lowest on jack pine. Overall brood survival was highest on Scots pine (86%) and lowest on jack (72%) and white pine (76%); phloem thickness was not a significant covariate in this analysis.
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CitationYe, Hui; Haack, Robert A.; Petrice, Toby R. 2005. Tomicus piniperda (Coleoptera: Scolytidae) reproduction and development in Scots, jack, red and eastern white pine under laboratory conditions. The Great Lakes Entomologist. 38: 13-22.
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