Correlated responses to neonicotinoid insecticides in clones of the peach-potato aphid, Myzus persicae (Hemiptera: Aphididae)

被引:45
作者
Foster, Stephen P. [1 ]
Cox, Diana [1 ]
Oliphant, Linda [1 ]
Mitchinson, Samantha [1 ]
Denholm, Ian [1 ]
机构
[1] Rothamsted Res, Dept Plant & Invertebrate Ecol, Harpenden AL5 2JQ, Herts, England
基金
英国生物技术与生命科学研究理事会;
关键词
Myzus persicae; insecticide resistance; bioassay; imidacloprid; thiamethoxam; thiacloprid; clothianidin; dinotefuran; resistance management;
D O I
10.1002/ps.1648
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
BACKGROUND: Although there are still no confirmed reports of strong resistance to neonicotinoid. insecticides in aphids, the peach-potato aphid (Myzus persicae Sulzer) shows variation in response, with some clones exhibiting up to tenfold resistance to imidacloprid. Five clones varying in response to imidacloprid were tested with four other neonicotinoid molecules to investigate the extent of cross-resistance. RESULTS: All four compounds-thiarnethoxam, thiacloprid, clothianidin and dinotefuran-were cross-resisted, with ED50 values ranked in the same order as for imidacloprid. Resistance factors ranged up to 11 for imidacloprid, 18 for thiamethoxam, 13 for thiacloprid, 100 for clothianidin and 6 for dinotefuran. CONCLUSION: This variation in response does not appear to be sufficient to compromise the field performance of neonicotinoids aimed at controlling aphids. However, it highlights the need for careful vigilance and stewardship in all M. persicae populations, and a need to consider neonicotinoids as a single cross-resisted group for management purposes. (c) 2008 Society of Chemical Industry
引用
收藏
页码:1111 / 1114
页数:4
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