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dc.contributor.authorAntwi, Frank B.
dc.contributor.authorOlson, D. L.
dc.contributor.authorCarey, D. R.
dc.date.accessioned2018-02-16T19:54:46Z
dc.date.available2018-02-16T19:54:46Z
dc.date.issued2007-08
dc.identifier.citationAntwi, F. B., D. L. Olson and D. R. Carey. 2007. Comparisons of ecorational and chemical insecticides against crucifer flea beetle (Coleoptera: Chrysomelidae) on canola. Journal of Economic Entomology 100(4): 1201-1209.en_US
dc.identifier.issn0022-0493
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/14400
dc.description.abstractStudies were done comparing the insecticides SpinTor (spinosad), BotaniGard ( Beauveria bassiana ), Neemix (azadirachtin), and Surround (kaolin, a clay) with conventional chemical insecticides Capture (bifenthrin) and Helix XTra (thiamethoxam), all applied at seven rates in a 7-d assay to assess their impact on adult crucifer flea beetle, Phyllotreta cruciferae (Goeze) (Coleoptera: Chrysomelidae). Lethal time (LT) required for 25, 50, and 75% mortality (LT 25 , LT 50 , and LT 75 ) and relative potencies for the insecticide concentration groupings (0, 1X–1.5X, and 2X–4X) were estimated for each treatment by using survival functions. P. cruciferae mortality increased in response to increasing concentrations, especially for Helix XTra, Capture and SpinTor. After 2 d of exposure in 2002, mortality ranged from 54 to 78% for Helix XTra, from 60 to 94% for Capture, and from 66 to 92% for SpinTor across concentrations. In 2003, flea beetle mortality ranged from 37 to 60%, from 29 to 63%, and from 23 to 52% on exposure to Helix XTra, Capture, and SpinTor, respectively, for 2 d. The LT 50 and relative potencies of the insecticides were in the order of Helix XTra, Capture, and SpinTor > BotaniGard, Neemix, and Surround. In 2002, LT 50 values were 1 and 2 d for Capture and SpinTor, 2 d for BotaniGard, and 3 d for Neemix and Surround. In 2003, LT 50 values occurred between 2 and 4 d after exposure to Helix XTra, Capture, and SpinTor, with LT 50 values of 5–7 d on exposure to BotaniGard, Neemix, and Surround. SpinTor seems to be a suitable ecorational insecticide in canola, Brassica napus L., for P. cruciferae management.en_US
dc.rightsThis is a pre-copyedited, author-produced PDF of an article accepted for publication in [insert journal title] following peer review. The version of record [insert complete citation information here] is available online at: xxxxxxx [insert URL that the author will receive upon publication here].en_US
dc.titleComparisons of ecorational and chemical insecticides against crucifer flea beetle (Coleoptera: Chrysomelidae) on canolaen_US
mus.citation.extentfirstpage1201en_US
mus.citation.extentlastpage1209en_US
mus.citation.issue4en_US
mus.citation.journaltitleJournal of Economic Entomologyen_US
mus.citation.volume100en_US
mus.identifier.categoryChemical & Material Sciencesen_US
mus.identifier.categoryLife Sciences & Earth Sciencesen_US
mus.identifier.doi10.1093/jee/100.4.1201en_US
mus.relation.collegeCollege of Agricultureen_US
mus.relation.departmentResearch Centers.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.relation.researchgroupWestern Triangle Ag Research Center.en_US
mus.data.thumbpage3en_US


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