我国林业重大害虫松毛虫的灾害研究进展

我国松毛虫种类丰富,已报道27种,其中6种频繁暴发,年危害松林面积达200万hm2以上、经济损失数亿元。松毛虫灾害研究可以为综合治理松毛虫提供重要的理论依据与相关技术。近年来,我国在影响松毛虫种群发生的关键性因子分析、性信息素的研究与开发利用、松树挥发性物质的成分鉴定及其对寄生蜂或寄生蝇的定位作用、卫星遥感监测技术等方面的研究取得了较大进步,但缺少系统性的归纳总结。为此,文章就近些年来我国在松毛虫灾害机制与暴发机理研究、治理现状与技术措施等方面进行综述,展望今后我国松毛虫治理研究工作的重要方向和趋势。

Researches on the occurrences of major forest insect pests of pine caterpillar Dendrolimus spp.in China

Dendrolimus spp.,important defoliators of coniferous forest,are widely distributed in China.27 species have been recorded,including 6 that frequently have outbreaks that damage more than two million hm2 of pine forests every year.Research on Dendrolimus spp.is important to develop tactics and related technologies for the integrated pest management（ab.IPM） of this pest.Recently,progress has been made,especially on key-factor analysis,research and utilization of sex-pheromones,identification of volatile-compounds and their impacts on the orientation behavior of parasitic wasps and flies,and satellite remote sensing for Dendrolimus spp.This paper systematically reviews outbreaks and occurrence of Dendrolimus spp.,as well as some new survey and forecasting techniques.Further studies should focus more on the biology and ecology of some nonoutbreak species of Dendrolimus spp.since this information will shed light on the outbreak mechanisms of the pest species.