近年来,植物的病、虫、草害对农药产生一定的抗性,而且药害以及农药的残留问题也日趋严重,在很大程度上限制了农药的使用,因而一些新的植保方法也就应运而生。中国农科院气象室新近研制出一种“植物防病膜剂”,具有高效,微毒、无残留等优点。 In recent years, plant diseases, pests and weeds have certain resistance to pesticides, and the problems of pesticide damage and pesticide residues are also aggravating, largely restricting the use of pesticides. Therefore, some new plant protection methods Came into being. China Academy of Agricultural Sciences recently developed a meteorological room a “plant disease control agent”, with high efficiency, micro-drug, no residue and so on.