从我国当前粮食保管的实际情况看,无毒保粮技术在一个较长时期尚不能普及,利用熏蒸剂来保管好粮食,仍是广大基层粮库最主要的方法。根据各地实际使用情况,大多习惯于单种使用,五十年代以氯化苦为主,六十年代以敌敌畏为主,七十年代以磷化氢为主。长期单种使用的结果,已产生一定的后遗症——诱导害虫产生抗药性,特别是当前广泛使用的王牌熏蒸剂磷化氢也日益受到害虫的严重威胁,反应出来的明显事实是熏蒸后保持无虫期较短,常规熏蒸法一般保持二至三个月,改用“粮堆熏蒸法”也不过半年左右,一年至少要熏蒸二至三次,不仅增加费用,积累残毒,更严重的是促使抗性问题的继续发展,将给防治工 Judging from the current actual situation of food storage in our country, the technology of non-toxic food preservative can not be popularized for a long time and the use of fumigants to keep good food is still the most important method for the majority of grassroots grain storage. According to the actual use of each place, most used to single use, chloropicrin in the fifties dominated the sixties to dominate the dichlorvos, mainly in the seventies of phosphine. Long-term single use of the results, has produced some sequelae - inducing pest resistance, in particular, is currently widely used trump card fumigant phosphine is also increasingly threatened by pests, the obvious fact is reflected in the fumigation remain Short period of insects, conventional fumigation generally maintain two to three months, switch to “foodstuff fumigation method” but also about six months, at least a year to fumigate two or three times, not only to increase costs and accumulate residuals, more serious is to promote The continuing development of the resistance issue will give preventive workers