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为了寻找能防治水稻穗颈瘟病的有效农药,与现有的防治药剂交替使用,克服稻瘟病抗药性,本文报道了40％丙硫磷乳油的防治效果,结果表明:40％的丙硫磷乳油用量200ml/667m~2,防治稻穗颈瘟病防效为75.8％,防治后水稻病情指数、千粒重、小区产量方差分析表明,40％丙硫磷乳油200ml/667m~2与20％三环唑100g/667m~2和2％施宝灵35ml/667m~2差异不显著,防效水平相当,40％丙硫磷可以与三环唑,施宝灵交替或替代使用防治水稻穗颈瘟病。
In order to find effective pesticides that can control rice panicle blast and alternate with existing control agents to overcome the resistance of rice blast, the control efficacy of 40% cefotaxime cream was reported in this paper. The results showed that 40% The control effect was 75.8% for the prevention and control of panicle blast in rice with the dosage of 200ml / 667m ~ 2. The analysis of rice disease index, 1000-grain weight and plot yield showed that 40% of 200ml / 667m ~ 2 and 20% tricyclazole / 667m ~ 2 and 2% Shi Baoling 35ml / 667m ~ 2 difference was not significant, control effect is quite level, 40% Cefazolin can be used in place of tricyclazole, Shi Bao Ling or alternative to control rice panicle blast.