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冬季,根据贮粮害虫的越冬规律,采取有效措施进行防治,不但能减少翌年虫源及为害,而且省工省力,可达到事半功倍的作用。1.低温冷冻法贮粮害虫一般在环境温度降到8～15℃时停止活动,4～8℃时陷入麻痹状态,0℃以下就会冻僵,再继续低温2～3个夜晚,许多害虫就会冻死。在应用上,除含水量在17％以上的种子粮和花生不宜采用低温冷冻法外,其余粮油都可采用。
In winter, taking effective measures to prevent and control pests according to the overwintering of stored grain will not only reduce the source and damage of pests in the next year, but also save labor and labor and achieve a multiplier effect. 1. Cryogenic storage grain pests are generally stopped when the ambient temperature dropped to 8 ~ 15 ℃, 4 ~ 8 ℃ into paralysis, freezing below 0 ℃ will be frozen, and then continue the cold 2 to 3 nights, many pests Will freeze to death. In the application, in addition to the water content of more than 17% of seed grains and peanuts should not be frozen using low temperature, the remaining grain and oil can be used.