| Pymetrozine causes a nontarget pest, the Colorado potato beetle (Coleoptera: Chrysomelidae), to leave potato plants. | |
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MedLine Citation:
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PMID: 18330119 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Pymetrozine is a selective insecticide that targets aphids. Published assessments of the effects of pymetrozine on nontarget organisms focus mainly on predatory insects, and they rarely indicate toxicity. In a laboratory bioassay, survival of Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae), larvae was not affected by pymetrozine exposure. We subsequently used pymetrozine to implement low-aphid-density treatments in a field experiment that involved separate manipulations of Colorado potato beetle density. Unexpectedly, the addition of Colorado potato beetle adults and eggs did not increase the densities of Colorado potato beetle larvae in plots that were sprayed with pymetrozine (applied with water and an adjuvant). In control plots sprayed with water and adjuvant (without pymetrozine), addition of Colorado potato beetles increased densities of their larvae. Data collected on a smaller scale suggest that a behavioral mechanism underlies the population-level pattern: Colorado potato beetle larvae become more active and are less likely to remain on a host plant after exposure to pymetrozine. Thus, potato, Solanum tuberosum L., growers who use pymetrozine against aphids also might benefit in terms of Colorado potato beetle control. |
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Authors:
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G C Chang; W E Snyder |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Journal of economic entomology Volume: 101 ISSN: 0022-0493 ISO Abbreviation: J. Econ. Entomol. Publication Date: 2008 Feb |
Date Detail:
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Created Date: 2008-03-11 Completed Date: 2008-04-22 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 2985127R Medline TA: J Econ Entomol Country: United States |
Other Details:
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Languages: eng Pagination: 74-80 Citation Subset: IM |
Affiliation:
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Department of Entomology, Washington State University, Pullman, WA 99164, USA. chang@gonzaga.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Beetles / physiology* Behavior, Animal / drug effects* Biological Assay / veterinary Colorado Insecticides / pharmacology* Random Allocation Solanum tuberosum / parasitology* Triazines / pharmacology* |
| Chemical | |
Reg. No./Substance:
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0/Insecticides; 0/Triazines; 123312-89-0/pymetrozine |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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