论文部分内容阅读
利用伊维菌素与乙基多杀菌素对埃及伊蚊幼虫进行生物测定,通过使用诱饵结合药物处理伊蚊成虫,观察其生存情况,了解上述两种药物对蚊虫的作用效果,从而为蚊媒防控提供一定的参考。伊维菌素与乙基多杀菌素处理幼虫后得到半致死浓度LC_(50)分别为1.427 mg/L、0.031 mg/L。饲以1.82mg/kg(A1组)与9.1mg/kg(A2组)伊维菌素血餐成蚊的半数生存期分别为7.681 d和5.400 d,平均产卵量为31.58和13.79,孵化率也降低为23%与0%,二次吸血后的产卵量受影响较小,但孵化率为0;以0.1、1、5、10、20 mg/L(B1-B5组)伊维菌素糖水饲养成蚊,B4组与B5组的蚊虫半数生存期分别为3.110 d与2.980 d,B1组与B2组的平均产卵量为91.80和94.95,与对照无明显差异,但孵化率仅为10%和0.3%。试验表明,乙基多杀菌素可用于伊蚊幼虫的生物防治,伊维菌素的不同诱饵处理后对埃及伊蚊成蚊从产卵至二次吸血以及卵的孵化率均有较明显的影响。
The bioassay of Aedes aegypti larvae with ivermectin and ethyl spinosad and the treatment of Aedes albopictus with baits and drugs to observe their survival and understand the effect of the above two drugs on mosquitoes and make them mosquito vectors Prevention and control provide some reference. The median lethal concentration (LC 50) of ivermectin and ethyl spinosad were 1.427 mg / L and 0.031 mg / L, respectively. The half-lives of adult mosquitoes fed with 1.82mg / kg (A1) and 9.1mg / kg (A2) blood meal were 7.681 d and 5.400 d, respectively, and the average fecundity was 31.58 and 13.79 respectively. The hatchability But also decreased to 23% and 0% respectively. The amount of spawning after secondary blood-sucking was less affected, but the hatching rate was 0. With 0.1,1,5,10 and 20 mg / L (B1-B5) The half-lives of mosquitoes in B4 and B5 groups were 3.110 d and 2.980 d, respectively. The average fecundity in B1 and B2 groups was 91.80 and 94.95, respectively. There was no significant difference with control 10% and 0.3%. Experiments show that, ethyl spinosad can be used for biological control of Aedes larvae, ivermectin different bait treatment on Aedes aegypti mosquito from spawning to secondary vampire and egg hatching rate have a more significant impact .