我省近几年推广杂交水稻以来,稻飞虱猖獗,急需叶蝉散等氨基甲酸酯类的农药。但我省还没建厂,故只能靠甲六粉,乙六粉,敌敌畏等农药来防治,而效果还不够理想。因此多以进口叶蝉散加工成2%粉剂进行防治,但数量有限,满足不了农业需要。 Since the popularization of hybrid rice in our province in recent years, planthoppers have become rampant and the pesticides such as leafhoppers and other carbamates are urgently needed. However, the province has not yet set up factories, it can only rely on A six powder, B six powder, dichlorvos and other pesticides to control, while the effect is not ideal. Therefore, more leafhoppers imported into processing 2% powder for prevention and treatment, but a limited number, can not meet the needs of agriculture.