我国柳杉毛虫研究进展

Research Advances in Dendrolimus houi Lajonquiere of China

柳杉毛虫是一种大型鳞翅目类食叶害虫,在我国南方多个省份均有分布,可危害柳杉、云南松、侧柏等多种寄主,其中以柳杉较为严重,重者导致林分大面积枯死。文中在收集查阅近60年来国内外相关文献的基础上,从寄主与分布、生物学特性、生态学特性、虫害综合防治和资源利用等方面进行了综述。发现该虫在不同区域能适应不同的寄主,并在夏、冬季节对极端温度具有特殊的适应性;柳杉毛虫性引诱剂的开发和应用可有效杀灭雄虫个体并降低后代种群数量;一些优势天敌具有较好的控害潜能,值得进一步开发利用,可为更好地控制虫害和开展深入研究提供参考。

Dendrolimus houi Lajonquiere,which has been found in many provinces in South China,is a large defoliator of several species of host plants such as Cryptomeria fortunei(Hooibrenk),Pinus yunnanensis Franch,Platycladu sorientalis(L.)Franco,etc.,of which C.fortunei suffers the most.The serious infection of D.houi may cause large area defoliation,dieback and even death of forest.Based on the review of the literature on D.houi in more than 60 years at home and abroad,the paper summarizes the hosts and distribution range,biological characteristics,ecological characteristics,IPM strategies and resource utilization of D.houi.It is found that this caterpillar has the ability to complete its life period by feeding on different species of host,and can adapt to extreme temperatures stresses in summer or winter.The development and application of caterpillar attractant for C.fortunei could effectively kill the male moths after adult emergence and thus reduce their off springs.Some predominant natural enemies have e higher capacity to control pests,which is worthwhile to be studied and utilized so as to provide helpful references to control the pest and to conduct the further study.