5种高毒有机磷农药禁用以后,替代农药品种的选择是至关重要的问题。“高毒农药替代试验示范项目”实施一年来,已经推选出38种田间小区和示范试验的备选药剂,今年,这个数字还将进一步增加。那么,在近500个有效成分品种中,替代农药是怎样选出来的呢?近日,河北省农林科学院植物保 After the ban on the five kinds of highly toxic organic phosphorus pesticides, the choice of alternative pesticide varieties is a crucial issue. Over the past year since the implementation of the “Highly Toxic Pesticide Alternative Demonstration Project,” 38 alternative fields for field plots and demonstration experiments have been selected. This year the figure will further increase. So, in nearly 500 active ingredient varieties, how to choose the alternative pesticide? Recently, Hebei Academy of Agriculture and Forestry Plant Protection