1.农药安全选用问题 国家有关部门已三令五申,禁止在蔬菜上使用高毒残留农药,包括氧化乐果、甲胺磷、六六六、DDT、1605、涕灭威、呋喃丹等。而生产上却屡禁不止,如用呋喃丹防治大葱虫害、1605防治韭蛆等。同时,国家对每种农药都规定了安全间隔期,即从最后一次施药至采收上市的时间。一般讲,蔬菜产品收获前5～7天应禁止用药,而生产中往往被忽 1. Pesticide Safety Selection Issues Relevant departments of the state have made repeated orders to prohibit the use of highly toxic residual pesticides on vegetables, including omethoate, methamidophos, BHC, DDT, 1605, aldicarb and carbofuran. But the production has repeatedly banned, such as prevention and treatment of onion pests with carbofuran, prevention and control of leek 1605 and so on. In the meantime, the state stipulates the safety interval for each pesticide, that is, the time from the last pesticide application to the time of market acceptance. In general, vegetables should be banned for medication 5-7 days before harvest, while production is often neglected