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我市每年夏征入库小麦,几乎都有不同程度的麦蛾为害。1976年夏征入库时,东郊粮库防化人员抽查了近郊12个公社送交的小麦,发现都在田间被麦蛾危害过。最少的每公斤小麦有麦蛾幼虫20头,最多的,每公斤小麦有1,916粒被蛀空。在田间为害小麦的麦蛾是从哪里来的?经过在6个生产队的访问调查,发现麦秸里残留的麦粒中,35%有麦蛾幼虫。这些幼虫在小麦成熟前即羽化为成虫,飞向麦田产卵、繁殖为害,是麦田麦蛾的一个来源。在调查中又了解到生产队的麦秸一般都作为沤肥用,大都在4—5月前处理完了,但在与麦秸垛相隔几十里远的麦田,也都有不同程度的麦蛾在麦田里活动。从这
Every summer in the city, we store wheat, almost all have different degrees of moth damage. In the summer of 1976, when the warehouse was opened, the anti-chemical personnel at the eastern suburbs of grain depot spotted the wheat sent by the 12 communes in the suburbs and found that they were harmed by the moth in the field. There are at least 20 wheat germ larvae per kilogram of wheat, with 1,916 grains per kilogram of wheat being eaten up. Where did the wheat moth harm wheat in the field come from? After a survey of 6 production teams, 35% of the wheat moth larvae were found in the wheat grains remaining in the wheat straw. These larvae emerge as adults before the wheat matures and fly to the wheat fields to spawn and reproduce, which is a source of wheat field moths. In the survey also learned that the production team’s straw are generally used as fertilizer, mostly in the 4-5 months before the treatment, but in wheat fields and wheat straw stacks separated by tens of miles away, but also have different levels of wheat moth in the field activity. From this