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《Journal of Anhui Agricultural Sciences》 2009-18
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Study on the Effect of Metaflumizon against Beet Armyworm

WANG Dong-sheng et al(Shanghai Key Laboratory of Protected Horticultural Technology,Institute of eco-environment and plant protection,SAAS,Shanghai 201106)  
[Objective] The research aimed to evaluate the efficacy of metaflumizone and to find the prospects of mixed use metaflumizon with chlorfennapyr or alpha-cypermethrin.[Method] Trial 1 included the following six treatments: metaflumizon at 216、252、288、504 g ai/hm2 respectively,chlorfennapyr at 75 g ai/hm2 and water contrast;In addition to the treatments in trial 1,another 3 treatments,indoxacarb 15%SC at 36 g ai/hm2,metaflumizon 24% SC 216 g ai/hm2 mixed with alpha-cypermethrin 10%EC at 15 g ai/hm2 and metaflumizon 24% SC 216 g ai/hm2 mixed with chlorfennapyr at 15 g ai/hm2,were included in trial 2.Larval density was investigated and control efficacy was determined 1,3,7,and 10 d after treatment.[Result] The results showed that metaflumizon treatments significantly reduced beet armyworm densities compared to the water-treated control.The control effects of metaflumizone 24% SC against early instar larva of beet armyworm was 87.23%-94.87% at 3 days after the spraying at 252-504 g ai/hm2,and 10 days effective duration was observed.Metaflumizone plus chlorfennapyr or alpha-cypermethrin showed a highly effect in controlling of Beet armyworm.[Conclusion]Trials suggested that metaflumizone could be promoted for the prevention and control of Spodoptera exigua,with a appropriate dose of 252-504 g ai/hm2;Metaflumizone mix with Chlorfennapyr may have better development prospects in beet armyworm control.
【Fund】: 国家公益性行业(农业)科研专项(200803007)
【CateGory Index】: S433
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