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5 %锐劲特SC 2 40ml/hm2 + 2 0 %三唑磷EC 12 0 0ml/hm2 按照江淮稻区单季稻综防模式施药 2次 ,在第 1次施药后 7、14、2 8天稻飞虱的校正虫口减退率分别为 91.1%、92 .0 %、87.2 % ,同期防治稻纵卷叶螟的保叶率分别为 77.8%、89.4%、98.8% ,防治 2代二化螟的保穗效果、杀虫效果在试验中均达到 10 0 %。此项应用技术与当地常规 10 %吡虫啉WP 2 2 5g/hm2 + 90 %杀虫单原粉60 0g/hm2 混用 ,在防治稻飞虱的速效性方面有显著差异 ,但在后期防效趋同 ,二者对稻纵卷叶螟的防效无显著差异 ,但前者在控制二化螟危害方面有显著优势。锐劲特与三唑磷混用可增强防治稻飞虱的速效性和对大螟、三化螟的兼治作用 ,并克服了三唑磷对稻飞虱再猖獗的刺激作用。锐劲特及其混剂对蜘蛛有较持久的杀伤作用 ,应予充分注意
5% Fritz SC 2 40ml / hm2 + 20% Triazophos EC 12 0ml / hm2 In accordance with the mode of single-cropping rice comprehensive prevention and control applied in Jianghuai area twice, after the first application 7,14,28 days The corrected population reduction rates of planthoppers were 91.1%, 92.0% and 87.2%, respectively. The leaf conservation rates of controlling rice leaf roller were 77.8%, 89.4% and 98.8%, respectively. Insulation effect, insecticidal effect in the experiment reached 100%. The application of this technology and the local conventional 10% imidacloprid WP 2 25g / hm2 + 90% insecticidal monosodium glutamate 60 0g / hm2 mix in the quick-acting control of planthopper have significant differences, but convergence in the late control, There was no significant difference between the two control effects on rice leaf roller, but the former had significant advantages in controlling the damage of stem borer. The combination of fipronil and triazophos enhances the quick-acting control effect against planthoppers and the concomitant action of the pesticides against the Sesamia inferens and the yellow rice borer, and overcomes the triazophos stimulation of the re-rampant planthoppers. Regent and its mixture of spiders have a more lasting killing effect, should pay full attention