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八十年代以来,由于农业连年丰收,农户贮粮普遍增多,但由于贮粮条件差,加之防治工作跟不上,从而导致贮粮害虫发生危害逐年加重,据1990年对南阳、焦作、周口、驻马店等14个市(地)66个县(区)5018个农户的抽样调查,平均每户因贮粮害虫危害损失粮食54.4公斤,占贮粮的8.18％,按此推算,全省每年至少有15亿公斤粮食葬于虫口,探讨科学有效的农户贮粮害虫防治方法已成为当务之急。目前,化学药物熏蒸仍是防治农户贮粮害虫的主要手段,为筛选经济、高效、安全的熏蒸药物和施药技术,省植保植检站组织17个市、县对磷化铝、磷
Since the 1980s, peasants generally increased grain storage due to continuous harvest in agriculture. However, due to the poor storage conditions and prevention and control work, the harm to stored pests increased year by year. According to the statistics of Nanyang, Jiaozuo, Zhoukou, According to the sample survey of 5,018 households in 66 counties (districts) of 14 cities (prefectures) in Zhumadian, average households lost 54.4 kilograms of grain due to stored pests, accounting for 8.18% of stored grain. According to this calculation, at least 1.5 billion kilograms of grain are buried in insect population. It is imperative to explore a scientific and effective pest control method for stored grain pests. At present, fumigation of chemical drugs is still the main means of preventing and controlling pests stored by peasant households. In order to screen out economic, efficient and safe fumigating drugs and application techniques, the provincial plant protection and inspection stations have organized 17 cities and counties to study the effects of aluminum phosphide,