几种生物源农药对高架草莓叶螨和蚜虫的防治效果比较

Comparison of control effects of several bio-pesticides against leaf mites and aphids on strawberry

叶螨和蚜虫是草莓生产中的重要害虫,为减少化学农药使用同时提高防治效果,本研究选择几种生物源农药对草莓叶螨和蚜虫进行防治效果比较。研究结果表明,对叶螨,1.8%阿维菌素微乳剂(ME)1400倍液防治效果最佳,药后7 d防治效果达81.15%,显著高于其他处理;2.5%鱼藤酮乳油(EC)600倍液防治效果最差,药后7 d防治效果为46.87%。对蚜虫,2.5%鱼藤酮EC 400倍液防治效果最佳,药后7 d防治效果达85.08%,1.3%苦参碱水剂(AS)1200倍液防治效果最差,药后7 d防治效果为62.75%。供试生物源药剂对草莓生长安全,无药害发生。在草莓生产中,可优先选择1.8%阿维菌素ME 1400倍液、2.5%鱼藤酮EC 400倍液分别对叶螨、蚜虫进行防治。

Leaf mite and aphid are important pests in strawberry production.In order to reduce the use of chemical pesticides and improve the control effect,several bio-pesticides were selected to compare the control effect on mites and aphids.The results showed that the 1400 times solution of abamectin 1.8% ME had the best control effect on the mites,with the efficacy of 81.15% seven days after application,which was significantly higher than those of other pesticides.The control efficacy of rotenone 2.5% EC 600 times solution was the worst,which was only 46.87% seven days after application.Rotenone 2.5% EC 400 times solution had the best control effect against the aphids,with the efficacy of 85.08% seven days after application,and matrine 1.3% AS 1200 times solution showed the lowest control effect,which was 62.75% seven days after application.All of the tested bio-pesticides were safe to strawberry and no damage was observed.In strawberry production,abamectin 1.8% ME 1400 times solution and rotenone 2.5% EC 400 times solution are recommend as a priority for the control of mites and aphids,respectively.