Effects Comparison of Five Frequently-used Pesticides in Preventing the Second Generation of Rice Stem Borer
[Objective] The aim was to understand the control effect of several common pesticides on rice stem borer.[Method] We studied the control effect of 95％ monosultap,0.5％ emamectinbenzoate + 30％ chlorpyrifos,6.7％ flubendiamide + 2.3％ avermectin,40％ chlorantra-niliprole + thiamethoxm and 20％ chlorantraniliprole on rice stem borer.[Result] Seven days after pesticide use,the effects of protecting seedling of 0.5％ emamectin benzoate + 30％ chlorpyrifos,6.7％ flubendiamide + 2.3％ avermectin and 40％ chlorantraniliprole + thiamethoxm were better,which were 83.36％,80.62％ and 84.71％,respectively.And the effect of protecting seedling of 20％ chlorantraniliprole was 77.54％,followed by the 95％ monosultap,with 62.69％.Twenty days after pesticide use,the effects of the pesticides had no significant difference.However,those of 6.7％ flubendiamide + 2.3％ avermectin,20％ chlorantraniliprole and 40％ chlorantraniliprole + thiamethoxm were slightly better,which were 92.40％,94.47％ and 91.04％,respectively.95％ monosultap and 0.5％ emamectinbenzoate + 30％ chlorpyrifos were less effective,their effects were 87.08％ and 89.55％,respectively;twenty days after pesticide use,the control effects of 6.7％ flubendiamide + 2.3％ avermectin and 20％ chlorantraniliprole were 81.58％ and 96.45％,which were best.And 95％ monosultap and 40％ chlorantraniliprole + thiamethoxm were 59.60％ and 34.71％,respectively.The worst was 0.5％ emamectinbenzoate + 30％ chlorpyrifos,and it only reached 26.31％.[Conclusion] The results provide reference for the control of rice stem borer.
国家科技期刊平台
NSTL
万方数据
维普
