稻纵卷叶螟防治药剂配方筛选

为减少高毒、高残留农药的使用,提高水稻纵卷叶螟的防治效果,对不同配方的药剂进行了田间试验.结果表明:T3处理防治效果最好,分别比T1处理和T2处理药后3d防效高16.65％,5.89％,药后7d防效高6.74％,1.12％,药后10 d保叶效果高3.97％,1.66％;T5处理的省水效果最好,药后3,7d的防治效果分别是72.55％,78.65％,比T4处理药后7d防效高2.25％,药后10 d保叶效果是82.45％,比T4处理高1.66％.

Formula Screening of Insecticide Against Cnaphalocrocis medinalis(Guenee)

To reduce the utilization of high toxic and high residue insecticide and improve the control effect on Cnaphalocrocis medinalis(Guenée),the field experiment was conducted.The results showed that the control effect of treatment 3 was higher than that of treatment 1 and 2,increased by 16.65% and 5.89%,6.745 and 1.125,3.975 and 1.665 on 3rd day,7th day and 10th day after treating respectively.The water saving effect of treatment 5 was best.The control effect of treatment 5 was 72.55% and 78.65% on 3rd day and 7th day after treating respectively,and it was higher 2.25% than that of treatment 4 on 7th day after treating.The leaf protection effect of treatment 5 on 10th day after treating was 82.45%,higher 1.66% than that of treatment 4.