8种药剂对甘草胭脂蚧的田间防效评价

Field Efficacy of Eight Insecticides against Porphyrophora ningxia

采用B.t.、苦参碱、烟碱、藜芦碱、鱼藤酮、吡虫啉、啶虫脒和阿维菌素8种药剂对甘草胭脂蚧进行田间药效试验。结果表明:植物源农药2.5%鱼藤酮EC、10%烟碱EC、0.5%黎芦碱SL对甘草胭脂蚧的防效十分显著,且持效期长,药后30d防效保持在91.67%～100.00%。

Porphyrophora ningxia is one of main pests to endanger Glycyrrhiza uralensis Fisch. The efficacy of B.t., matrine, nicotine, vertrine, rotenone, imidacloprid, acetamiprid and avermectins in controlling Porphyrophora ningxia was determined. The results showed that botanical pesticides rotenone 2.5% EC, nicotine 10% EC and vertrine 0.5% SL provided good control of Porphyrophora ningxia and had long persistent period. Control efficacy was 91.67 to 100.00% at 30 days after application.