Show simple item record

dc.contributor.authorReddy, Gadi V. P.
dc.contributor.authorTangtrakulwanich, Khanobporn
dc.contributor.authorWu, Shaohui
dc.contributor.authorMiller, John H.
dc.contributor.authorOphus, Victoria L.
dc.contributor.authorPrewett, Julie
dc.date.accessioned2016-02-12T00:02:36Z
dc.date.available2016-02-12T00:02:36Z
dc.date.issued2014-04
dc.identifier.citationReddy, G. V. P., K. Tangtrakulwanich, S. Wu, J.H. Miller, V.L. Ophus, and J. Prewett. 2014. Sustainable management tactics for control of Phyllotreta cruciferae (Coleoptera: Chrysomelidae) on canola in Montana. Journal of Economic Entomology 107(2): 661–666.
dc.identifier.issn0022-0493
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/9563
dc.description.abstractThe crucifer flea beetle, Phyllotreta cruciferae (Goeze) (Coleoptera: Chrysomelidae), has recently emerged as a serious pest of canola (Brassica napus L.) in Montana. The adult beetles feed on canola leaves, causing many small holes that stunt growth and reduce yield. In 2013, damage to canola seedlings was high (≈80%) in many parts of Montana, evidence that when flea beetles emerge in large numbers, they can quickly destroy a young canola crop. In the current study, the effectiveness of several biopesticides was evaluated and compared with two insecticides (deltamethrin and bifenthrin) commonly used as foliar sprays as well as seed treatment with an imidacloprid insecticide for the control of P. cruciferae under field conditions in 2013. The biopesticides used included an entomopathogenic nematode (Steinernema carpocapsae), two entomopathogenic fungi (Beauveria bassiana and Metarhizium brunneum), neem, and petroleum spray oils. The control agents were delivered in combination or alone in a single or repeated applications at different times. The plant-derived compound neem (azadirachtin), petroleum spray oil, and fatty acids (M-Pede) only showed moderate effect, although they significantly reduced leaf injuries caused by P. cruciferae and resulted in higher canola yield than the untreated control. Combined use of B. bassiana and M. brunneum in two repeated applications and bifenthrin in five applications were most effective in reducing feeding injuries and improving yield levels at both trial locations. This indicates that entomopathogenic fungi are effective against P. cruciferae, and may serve as alternatives to conventional insecticides or seed treatments in managing this pest.
dc.description.sponsorshipFunding for this research was provided by U.S. Department of AgricultureÐNational Institute of Food and Agriculture (USDA-NIFA) Hatch (#MONB00859).
dc.rights.urihttp://creativecommons.org/licenses/by-nc/3.0/legalcode
dc.titleSustainable Management Tactics for Control of Phyllotreta cruciferae (Coleoptera: Chrysomelidae) on Canola in Montana
dc.typeArticle
mus.citation.extentfirstpage661
mus.citation.extentlastpage666
mus.citation.issue2
mus.citation.journaltitleJournal of Economic Entomology
mus.citation.volume107
mus.identifier.categoryLife Sciences & Earth Sciences
mus.identifier.doi10.1603/ec13503
mus.relation.collegeCollege of Agriculture
mus.relation.departmentResearch Centers.
mus.relation.universityMontana State University - Bozeman
mus.relation.researchgroupWestern Triangle Ag Research Center.
mus.data.thumbpage4


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

http://creativecommons.org/licenses/by-nc/3.0/legalcode
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc/3.0/legalcode

MSU uses DSpace software, copyright © 2002-2017  Duraspace. For library collections that are not accessible, we are committed to providing reasonable accommodations and timely access to users with disabilities. For assistance, please submit an accessibility request for library material.