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近年调查我省9个专、州、市的43个县部分稻田内主要害虫天敌,经初步鉴定,已知名者200多种,其中主要寄生蜂69种,隶属九个科。寄生稻纵卷叶螟的有22种,稻苞虫的有26种,二化螟的有13种,三化螟的有11种,稻飞虱的有7种,粘虫的有10种;其中,稻螟赤眼蜂是我省一个优势蜂种。卵寄生蜂对当代起作用,幼虫及蛹寄生蜂则作用于下代。一种天敌难以控制某种害虫发生为害,必须保护好当地稻田中多种天敌种群,让其发挥各自的治虫本领,控制害虫的效果才能显著。应采取多种措施保护天敌,而首要的应是科学使用化学农药。
In recent years, the province investigated nine prefectures, prefectures and cities in 43 counties, some of the main pests in the paddy fields of natural enemies, initially identified, known more than 200 kinds, of which 69 kinds of main parasitoids, under nine sections. There are 22 species of parasitic rice leaf roller, 26 species of rice shellworm, 13 species of rice stem borer, 11 species of rice stem borer, 7 planthoppers, 10 species of armyworm; Among them, Trichogramma ostriniae is a dominant bee species in our province. Egg parasitoids play a role in the present, while larvae and pupal parasites act on the next generation. It is difficult for a natural enemy to control the occurrence of a pest. It is necessary to protect the natural enemy populations in the local paddy so as to exert their respective pest control skills and control pest effects significantly. Various measures should be taken to protect natural enemies, but above all, chemical pesticides should be used scientifically.