控制越冬幼虫为主的油松毛虫综合防治的研究

本文报道了1983～1986年期间油松毛虫综合防治研究中,越冬幼虫在树干及地面的分布规律,年发生世代数,幼虫空间格局及其抽样技术和越冬幼虫种群数量变动;文中叙述了控制越冬幼虫的有效措施:塑料薄膜围环、拟菊酯类杀虫剂毒环、毒纸环阻杀越冬下树或出蛰上树幼虫,干基围纸环、干基地面铺石块诱集下树越冬幼虫,施拟青霉菌剂防治越冬幼虫等;文中还涉及到了天敌的调查利用,以及合理使用化学农药等方面的研究结果,并提出以控制越冬幼虫为中心的综合防治系统方框图。

Studies on the IPM of the Chinese Pine Caterpillar, Dendrolimus tabulaeformis Tsai et Liu, with Emphasis on the Control of ItsHibernating Larvae

Studies on the IPM of the Chinese pine caterpillar, Dendrolimus tabulaeformis Tsai et Liu, with emphasis on the control of its hibernating larvae (HL) have been conducted from 1988-1986. In this paper the main findings of the studies are introduced, which include, the distribution of HL in overwintering sites (mainly under trunk bark, within litter and grass in a radius of 50cm from the pine tree base, under stones, etc.); the number of generation per year; spatial pattern and sampling teachni-que; population dynamics of HL; effective, ecolo'gical tactics for control of HL (including plastic-membrane tape, toxic girdle and toxie paper belt of feuvalerate, paper belt without chemicals, stones near the base of the tree stem to attract hibernating larvae, use of a powdery product of Paecilomyces farinosus, investigation and utization of natural enemies, and rational use of pesticides) . The diagram of the IPM system with emphasis on the control of the HL is also presented.