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进行40%氯虫.噻虫嗪水分散粒剂防治单季稻五(3)代稻纵卷叶螟试验,结果表明:药后3、7、15 d对稻纵卷叶螟幼虫防效分别为83.2%、88.1%、88.3%,平均为86.53%,较对照药剂90%杀虫单可湿性粉剂3 kg/hm2高20.86个百分点;药后3、7、15 d,对单季稻的保叶效果分别为5.1%、50.2%、43.2%,平均为32.8%,较对照药剂90%杀虫单可湿性粉剂高4.9个百分点。经DPS显著性测定,均与对照药剂的处理效果差异显著,表明应用40%氯虫.噻虫嗪水分散粒剂等防治单季稻稻纵卷叶螟具有良好的长效控制效果和推广应用前景。
Thiamethoxam water dispersible granules against five (3) generations of rice leaf roller test results showed that: 3,7,15 d after drug larvae of the control of rice leafroller were 83.2 %, 88.1% and 88.3% respectively, with an average of 86.53%, 20.86% higher than that of 90% insecticidal single wettable powder of 90% pesticide; 3,7 and 15 d after spraying, 5.1%, 50.2% and 43.2% respectively, with an average of 32.8%, which is 4.9% higher than that of 90% insecticide single WP in the control pesticide. Significant differences were observed between the two treatments and the control agents, indicating that the application of 40% Chlorantraniliprole and thiamethoxam water dispersible granules had a good long-term control effect and promotion of application.