14种农药对芒果主要传粉昆虫——大头金蝇的毒效测定

The Evaluation of the Toxic Effect of the 14 Kinds of Pesticide on Chrysomya Megacephala——the Main Insect Pollinator of Mango

对 14种常用农药对大头金蝇的毒性进行测定 ,甲胺磷、乐斯本、三唑磷、氧化乐果、敌杀死、叶蝉散等杀虫剂对大头金蝇的毒性极高 ,尤以前 4种有机磷杀虫剂毒性最大 ,处理 8分钟 ,毒效均为10 0 % ;吡虫吡、巴丹、扑虱灵、虫敌 4种杀虫剂和甲基托布津、多菌灵、百菌清、粉锈宁等 4种杀菌剂对大头金蝇的毒性很低甚至无毒 ,选择这 8种农药供芒果花期病虫防治时使用 。

The evaluation of the toxic effect of 14 common pesticides on Chrysomya Megacephala was carried out by the authors of this article Pesticide'Li Amine phosphorus',Le Shi Ben,triazole phosphorus,rogor oxide,Decis(deltamethrin) and isoprocarb etc have extremely high toxicity on Chrysomya Magacephale Particularly,the first four oganic phosphorus pesticide possess the greatest toxicity After the treament of 8 minutes,the toxicity of such pesticide will be up to 100% Pesticide imidacloprid,padan,'pu shi ling'and'insect enemy'and fungicide topsin-methyl,carbendazim,chlorothalonil and bayleton etc have only very low or even not any toxicity on Chrysomya Megacephala Therefore,applying the above mentioned 8 kinds of pesticide in mango flowering period to prevent and control plant diseases and insect pest, the killing of great amount of the main insect pollinator-Chrysomya Megacephale can be avoided