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以水稻品种宁粳3号和镇稻11号为试材,进行了40%仲威·毒死蜱乳油、30%唑磷·毒死蜱乳油、36%敌百·三唑磷乳油和40%丙溴·毒死蜱乳油田间防治稻纵卷叶螟的比较试验。结果表明:40%仲威·毒死蜱乳油对稻纵卷叶螟防治效果较好。同时进行了不同使用剂量的40%仲威·毒死蜱乳油防治效果试验。结果表明:在卵孵高峰期施药,40%仲威·毒死蜱乳油1 800 mL/hm2处理的杀虫效果较好,防效达95.9%,保叶效果为92.4%,与对照药剂20%氯虫苯甲酰胺悬浮剂150 mL/hm2以及50%稻丰散1 800 mL/hm2和2 250 mL/hm2的防治效果相当。40%仲威·毒死蜱乳油对稻纵卷叶螟具有较好的防治效果,对水稻安全,是防治稻纵卷叶螟的理想药剂。
The rice varieties Ningjing 3 and Zhendao 11 were used as test materials, 40% Zhongwei chlorpyrifos EC, 30% EC and chlorpyrifos EC, 36% DDZ and 40% Comparative Experiment on Prevention and Cure of Leafroller Cnaphalocrocis medinalis in EC Field. The results showed that 40% of neemgrass chlorpyrifos had better control effect on Cnaphalocrocis medinalis. At the same time, 40% of the different doses of neptunium chlorpyrifos EC were tested. The results showed that the insecticidal effect of 40% Neptunus chlorpyrifos 1 800 mL / hm2 was 95.9% and the leaf protection effect was 92.4% at the peak of egg hatch. Compared with the control agent 20% chlorine The control effect of 150 mg / hm2 of worm benzamide suspension and 1 800 mL / hm2 and 50 250 mL / hm2 of 50% 40% Zhongwei · Chlorpyrifos EC has better control effect on Cnaphalocrocis medinalis and is safe for rice, which is an ideal medicament for controlling Cnaphalocrocis medinalis.