雨天使用农药或施药后遇雨,药剂会被雨水冲淡或冲掉。这样,不但大大降低了药剂的防治效果,而且还会污染水域。那么,在阴雨天怎样使用各种农药呢? 1.选用速效性农药磷胺和滴滴畏等速效性农药,能在很短的时间内将害虫杀死。因此,可在阴雨天的间隙时间内使用这种农药。 2.选用内吸性农药呋喃丹和杀虫脒等杀虫剂及稻瘟净和多菌灵等杀菌剂,都 Rainy days after using pesticides or pesticides in the event of rain, chemicals will be diluted with rain or washed away. In this way, not only greatly reduce the effectiveness of the control agent, but also contaminated waters. So, how to use a variety of pesticides in the rainy days do? 1. Quick-acting pesticides selected pesticides such as phosphorus amines and DDVP pesticides, pests can be killed in a very short period of time. Therefore, this pesticide can be used during the rainy days of the gap. 2. The use of systemic pesticide furadan and chlordimeform insecticide and blast fungicide net and carbendazim and other fungicides, all