Journal
PEST MANAGEMENT SCIENCE
Volume 70, Issue 5, Pages 836-840Publisher
JOHN WILEY & SONS LTD
DOI: 10.1002/ps.3626
Keywords
Myzus persicae; electrical penetration graph; feeding behavior; anthranilic diamide; cyantraniliprole
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Funding
- DuPont
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BACKGROUND The anthranilic diamide insecticide cyantraniliprole has been shown to suppress aphid and whitefly populations as well as reduce transmission of plant viruses by thrips and whiteflies when taken up systemically by the plant. In this study, electrical penetration graphing (EPG) was used to compare effects of cyantraniliprole on feeding behavior of Myzus persicae with those of the neonicotinoid insecticide imidacloprid applied as a soil drench to pepper plants two-, six-, and ten-days post-treatment. RESULTS Significant reductions in the total amount of time spent probing, mean number of phloem feeding events, and mean number of intracellular punctures were observed on both cyantraniliprole- and imidacloprid-treated plants, compared to aphids that fed on plants treated only with water. Imidacloprid treatment also caused a significant reduction in the total number of probes relative to the water treated control. The effects of cyantraniliprole were statistically significant only in assays conducted at ten-days post-treatment, whereas the effects of imidacloprid on aphid feeding were significant in assays conducted at two-, six-, and ten-days post-treatment. CONCLUSION These findings document significant effects of cyantraniliprole on feeding by Myzus persicae. (c) 2013 Society of Chemical Industry
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