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雨季施用农药要科学合理,否则极易造成药效流失,导致病虫害滋生蔓延。那么,雨季应如何科学合理地施用农药呢? 一、科学选择农药。目前市场上销售的农药品种齐全,性能各异,雨季选择施用农药除应考虑其防治范围和防治对象外,还应考虑到农药本身的性能,尽量选择下列几种性能的农药: 1.选用毒性较大的速效性农药:这类农药毒性较大,杀虫率高,具有很强的触杀作用,使用1—2小时后,便可杀死害虫。即使施用后被雨水冲稀,仍具有较强的作用。常用的有敌敌畏、甲胺磷、久效磷、速灭杀丁及一些高效
The application of pesticides in the rainy season should be scientific and reasonable, otherwise easily lead to loss of efficacy, resulting in the spread of pests and diseases. So, the rainy season should be how scientific and rational application of pesticides? First, the scientific choice of pesticides. Currently on the market for the full range of pesticides, different performance, select the application of pesticides in the rainy season should consider the scope of prevention and control and should also take into account the performance of pesticides, try to choose the following properties of pesticides: 1. The choice of toxicity Larger Quick-Acting Pesticides: These pesticides are more toxic and have a high rate of insecticidal activity and have a strong contact effect. After 1-2 hours of use, they can kill pests. Even after application by the rain dilute, still has a strong role. Commonly used dichlorvos, methamidophos, monocrotophos, speed kill K and some high efficiency