| Green peach aphid, Myzus persicae (Hemiptera: Aphididae), reproduction during exposure to sublethal concentrations of imidacloprid and azadirachtin. | |
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MedLine Citation:
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PMID: 19089851 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Resurgence of insect pests following insecticide applications is often attributed to natural enemy disturbance, but hormesis could be an alternative or additional mechanism. Green peach aphid, Myzus persicae (Sulzer), is an important insect pest of many crops worldwide that may be exposed to sublethal insecticide concentrations over time. Here, the hypothesis that exposure to low concentrations of imidacloprid and azadirachtin can induce hormetic responses in M. persicae is tested in the laboratory. RESULTS: When insects were exposed to potato leaf discs dipped in sublethal concentrations of insecticide, almost all measured endpoints-adult longevity, F1 production, F1 survival and F2 production-were affected, and a statistically significant (P < 0.05) stimulatory response was recorded for F2 production following exposure to imidacloprid. No other measures for hormesis were statistically significant, but other trends of hormetic response were consistently observed. CONCLUSIONS: Given that variable distribution and degradation of insecticides in the field would result in a wide range of concentrations over time and space, these laboratory experiments suggest that exposure to sublethal concentrations of imidacloprid and azadirachtin could stimulate reproduction in M. persicae. |
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Authors:
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G Christopher Cutler; Krilen Ramanaidu; T Astatkie; Murray B Isman |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Pest management science Volume: 65 ISSN: 1526-498X ISO Abbreviation: Pest Manag. Sci. Publication Date: 2009 Feb |
Date Detail:
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Created Date: 2009-01-12 Completed Date: 2009-03-23 Revised Date: 2010-03-23 |
Medline Journal Info:
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Nlm Unique ID: 100898744 Medline TA: Pest Manag Sci Country: England |
Other Details:
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Languages: eng Pagination: 205-9 Citation Subset: IM |
Affiliation:
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Faculty of Land and Food Systems, University of British Columbia, Vancouver V6T 1Z4, BC, Canada. ccutler@nsac.ca |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Aphids / drug effects, physiology* Imidazoles / pharmacology* Insecticides / pharmacology* Limonins / pharmacology* Nitro Compounds / pharmacology* Plant Diseases / parasitology* Reproduction / drug effects Solanum tuberosum / parasitology |
| Chemical | |
Reg. No./Substance:
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0/Imidazoles; 0/Insecticides; 0/Limonins; 0/Nitro Compounds; 105827-78-9/imidacloprid; 11141-17-6/azadirachtin |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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