5种常用药剂对水稻2代二化螟的防治效果

Effects Comparison of Five Frequently-used Pesticides in Preventing the Second Generation of Rice Stem Borer

[目的]了解市场上几种常用药剂防治水稻二化螟的效果。[方法]研究了95%杀虫单SP、35%甲维·毒死蜱ME、10%氟虫双酰胺·阿维菌素SC(稻腾)、20%氯虫苯甲酰胺SC(康宽)和40%氯虫·噻虫嗪WG(福戈)对水稻二化螟的防治效果。[结果]药后7 d,35%甲维·毒死蜱ME、10%氟虫双酰胺·阿维菌素SC、40%氯虫·噻虫嗪WG的保稻效果较好,分别达83.36%、80.62%和84.71%,95%杀虫单SP的保稻效果最差,为62.69%,20%氯虫苯甲酰胺SC的保稻效果一般,为77.54%;药后20 d,几种药剂的保稻效果无显著差异,其中10%氟虫双酰胺·阿维菌素SC、20%氯虫苯甲酰胺SC、40%氯虫·噻虫嗪WG的保稻效果稍好,分别达92.40%、94.47%、91.04%,95%杀虫单SP和35%甲维·毒死蜱ME的保稻效果稍差,分别达87.08%、89.55%;药后20 d,10%氟虫双酰胺·阿维菌素SC和20%氯虫苯甲酰胺SC的防效较好,分别达81.58%和96.45%,95%杀虫单SP和40%氯虫·噻虫嗪WG的防效次之,分别为59.60%和34.71%,35%甲维·毒死蜱ME的防效最差,为26.31%。[结论]该研究结果为水稻二化螟的防控提供了理论依据。

[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.