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本文对平房仓低温粮堆表面生虫,采用粮堆表面投药、依靠微气流扩散的熏蒸方式和环流熏蒸的杀虫对比试验,两者都取得较好的杀虫效果。虽说环流熏蒸对粮堆整体的“冷芯”影响不大,但对底层粮堆的温升有一定的作用,建议在北方地区高大平房仓低温粮堆表面生虫时采用粮面投药的杀虫方法。
In this paper, low-temperature foodstuff warehouse surface miner live insects, the use of the surface of the piles dosing, relying on the diffusion of micro-air fumigation and circulation fumigation comparative insecticidal tests, both to achieve better insecticidal effect. Although circulation fumigation has little effect on the overall “cold core” of the grain piles, it has a certain effect on the temperature rise of the underlying grain piles. It is suggested that grain-dosed pesticides should be used when surface moths in the northern part of the large- method.