摘要
为了更好地发挥毒死蜱和三唑磷在水稻二化螟防治中的作用 ,提高防治效益 ,研制开发了 2 5 %毒·唑磷乳油产品 ,介绍了配方理论依据 ,并进行了配方筛选、主要经济指标的确定和贮存稳定性试验 .经湖南、河南两省两年田间药效试验结果表明 ,在二化螟卵孵化盛期施药 187.5～ 2 6 2 .5 g/ hm2 ,药后 7d对二化螟的防效在 90 %以上 ,药后 2 0 d保苗效果在 95 %以上 .
In order to make better use of chlorpyrifos and triazophos in controlling of Chilo suppres alis Walker, the author developed 25% chlorpyrifos triazophos EC,on the basis of which this paper is an attempt to introduce the active ingredients selection,main technique index and hostage stability of 25% chlorpyrifos·triazophos EC.Field experiments conducted in Hunan and Henan show that 25% Chlorpyrifos·triazophos EC can be used to control Chilo suppressalis ,and it is sprayed at 187.5～262.5 g/hm 2 in its flourishing ovum hatching.In seven days control rate is over 90% and in 20 days the protection effect upon seedlings is at over 95%.
出处
《湖南农业大学学报（自然科学版）》
CAS
CSCD
北大核心
2002年第5期399-401,共3页
Journal of Hunan Agricultural University(Natural Sciences)
基金
湖南农业大学海特农化有限公司资助项目
