吡虫啉替代药剂的田间筛选试验  

Field Screening Experiments for the Substituted Agrochemicals of Imidacloprid

作　　者：朱福官 穆兰芳 曹卫菊 丁海红 滕金洪 任辉[2] 

机构地区：[1]江苏省吴江市植保植检站,江苏吴江215200 [2]吴江市同里镇农业服务中心,江苏吴江215200

出　　处：《农药》2008年第2期145-147,共3页Agrochemicals

基　　金：江苏省苏州市科技招标项目(ZN0603)

摘　　要：进行了吡虫啉替代药剂的田间筛选试验。小区试验表明,10d后5%氟虫腈SC750mL/hm2、48%毒死蜱·氟虫腈EC900mL/hm2和25%吡蚜酮WP300g/hm2对褐飞虱和灰飞虱的防效均超过80%,对白背飞虱的防效超过75%,而10%吡虫啉WP600g/hm2对飞虱的防效小于50%;示范试验表明,10d后3种药剂对稻飞虱的防效依次分别为82.6%、85.2%和76.9%,15d后对麦田灰飞虱的防效分别为83.9%、79.9%和82.4%,明显好于吡虫啉。因此,氟虫腈、毒死蜱·氟虫腈和吡蚜酮可以作为吡虫啉的替代药剂,并就3种替代药剂的合理使用进行了探讨。Field screening experiments for the substituted agrochemicals of imidacloprid were processed. When fipronil 5% SC applied at 750 mL/ha, dursban plus fipronil 48% EC applied at 900 mL/ha and pymetrozine 25% WP applied at 300 g/ha in field plot trials respectively, they provided above 80% control efficacy against both brown planthopper and small brown planthopper at 10 d after application, and provided over 75% control efficacy against white backed rice planthopper at the same time. While the control efficacy of imidacloprid 10% WP applied at 600 g/ha against those three kinds of planthopper were all less than 50%. When they were used at the same dosage in field demonstration trials, the control efficacy against planthopper in rice field at 10 d after application is 82.6%, 85.2% and 76.9%, and against small brown planthopper in cornfield at 15 d after application is 83.9%, 79.9% and 82.4%, respectively. The results showed that the control efficacy of the three agrochemicals to planthopper is better than that of imidacloprid. Thus, fipronil, dursban plus fipronil and pymetrozine may be the substituted, agrochemicals of imidacloprid. In addiiton, the technique of the three agrochemicals used in field was discussed.

关 键 词：吡虫啉 替代药剂 筛选试验 

分 类 号：S482.3[农业科学—农药学]