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2010•Journal of Hebei North UniversityRequires access

Indoor Toxicity Determination and Field Effect Analysis of Metaflumizone SC against Avermectin-resistant Strain and Avermectin-susceptible Strain of Plutella xylostella(L.)

Xiwu Gao

Open publisher page 1 citations

Abstract

The indoor bioassay showed that there was no cross-resistance between abamectin and metaflumizone in the Plutella xylostella(L.).Compared with the avermectin-susceptible strain,the field population of Plutella xylostella(L.) from Zhangjiakou developed 23.22-fold resistance to avermectins,which reached moderate resistance level.The results of field trials showed that effect of 24%metaflumizone SC was better than that of 2% abamectin EC,and when it was diluted to 500～1 500 times the control effect was 81.07%～92.07% during 1～3 days after treatment,90.42%～98.15% on the 7th day,still up to 90% on the 10th day.So the 24% metaflumizone SC diluted 500～1 000 times is appropriate to control the resistant Plutella xylostella(L.).

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What this paper is about

The indoor bioassay showed that there was no cross-resistance between abamectin and metaflumizone in the Plutella xylostella(L.).Compared with the avermectin-susceptible strain,the field population of Plutella xylostella(L.) from Zhangjiakou developed 23.22-fold resistance to avermectins,which reached moderate resistance level.The results of field trials showed that effect of 24%metaflumizone SC was better than that of 2% abamectin EC,and when it was diluted to 500～1 500 times the control effect was 81.07%～92.07% during 1～3 days after treatment,90.42%～98.15% on the 7th day,still up to 90% on the 10th day.So the 24% metaflumizone SC diluted 500～1 000 times is appropriate to control the resistant Plutella xylostella(L.).

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Available abstract

The indoor bioassay showed that there was no cross-resistance between abamectin and metaflumizone in the Plutella xylostella(L.).Compared with the avermectin-susceptible strain,the field population of Plutella xylostella(L.) from Zhangjiakou developed 23.22-fold resistance to avermectins,which reached moderate resistance level.The results of field trials showed that effect of 24%metaflumizone SC was better than that of 2% abamectin EC,and when it was diluted to 500～1 500 times the control effect was 81.07%～92.07% during 1～3 days after treatment,90.42%～98.15% on the 7th day,still up to 90% on the 10th day.So the 24% metaflumizone SC diluted 500～1 000 times is appropriate to control the resistant Plutella xylostella(L.).

Key concepts: Plutella, Abamectin, Avermectin, Bioassay, Toxicology, Strain (injury), Biology, Population

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Indoor Toxicity Determination and Field Effect Analysis of Metaflumizone SC against Avermectin-resistant Strain and Avermectin-susceptible Strain of Plutella xylostella(L.) — Research Paper | ScholarLens