10种杀虫剂对南京地区Q型烟粉虱的室内毒力测定

在室内测定了10种杀虫剂对南京地区Q型烟粉虱的毒力,为生产上科学选择杀虫剂品种提供依据。根据烟粉虱的虫态和虫龄分别设计毒力测定方法,结果表明:10种杀虫剂中阿维菌素、甲氨基阿维菌素苯甲酸盐、啶虫脒和印楝素对烟粉虱成虫、若虫毒力较高,测定的杀虫剂品种中仅印楝素和噻虫啉对烟粉虱卵表现出较好的杀伤作用;在南京地区防治烟粉虱时应选用敏感性高的抗生素类杀虫剂,交替使用新烟碱类农药,并配合使用对烟粉虱卵高效的杀虫剂品种。

Indoor Toxicities of Ten Insecticides to Q -type Bemisia tabaci in Nanjing District

In order to scientifically apply insecticides to control Q -type Bemisia tabaci in the production in Nanjing, the toxicities of ten insecticides to Q - type Bemisia tabaci in Nanjing district were tested in the laboratory, and different determination methods were designed according to the morphology and instar of Bemisia tabaci. The results indicated that the toxicities of Abamectin, Emamectin benzoate, Acetamiprid and Azadirachtin to the adult and nymph were higher than those of the other insecticides tested in the experiments. Among the ten insecticides, only Azadirachtin and Thiacloprid exhibited high ovicidalactivity. Therefore, the application of the antibiotic insecticides with high sensitivity, the alternative use of the neonicotinoid pesticides, and the combined application of the insecticides with high ovicidalactivity were recommended in the control of Bemisia tabaci in Nanjing district.