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1前言长期以来,对粮堆采取熏蒸杀虫措施,一般都要等到粮堆中检查出若干头害虫时才进行,也就是说对储粮害虫存在一定的容忍度。各种粮油期刊、以及实际储粮工作中的统计资料表明:采取熏蒸杀虫措施时,粮堆中一般都能检查到2~30头/kg(不计书虱、螨类)储粮害虫,这就意味着在熏蒸杀
1 Foreword For a long time, fumigation and insecticidal measures on grain piles have generally not been carried out until the first pest has been detected in the grain piles. In other words, there is a certain degree of tolerance to stored grain pests. The statistics of various grain and oil journals and the actual grain storage work show that when the fumigation and insecticidal measures are taken, grain stock pests of 2 to 30 heads / kg (excluding book lice and mites) can be generally checked in the grain piles, It means killing in fumigation