M_(99-1)引诱剂诱捕松墨天牛等松甲虫的研究

Study on Trapping Monochamus alternatus and Other Pine Boring Beetles with M_(99-1) Liquid Attractant

报道了松墨天牛成虫活动期间 ,在马尾松 -栎类次生混交林、马尾松 -湿地松人工林和黄山松天然林 3种不同林分中 ,应用 M99-1引诱剂诱捕钻蛀性松甲虫种类、主要钻蛀性松甲虫成虫种群数量及其比率和不同诱捕期松墨天牛雌成虫孕卵量及其比率的情况。研究结果显示 ,M99-1引诱剂诱获鞘翅目害虫达 2 6种 ,其中钻蛀性松甲虫达 14种 ,占诱获种类的 5 3.8%。马尾松角胫象、松墨天牛种群数量比率最高 ,分别达 5 7.3%～ 69.8%和 2 7.2 %～ 2 9.3%。 3种不同松林林分中 ,短角幽天牛、褐幽天牛、薄翅锯天牛等其它主要钻蛀性害虫的数量比率也较高。不同诱捕期松墨天牛雌成虫平均孕卵量及其比率 ,以活动前期 (6月下旬前 )为最高 ,分别达 16.9粒和 4 1.9%。

The species of boring beetles,population dynamics of pine boring beetles,and egg breeding of female pine sawyer, Monochamus alternatus,trapped with M 99 1 liquid attractant in three different forest stands, i.e.Pinus massoniana Quercus mixed stand, P.massoniana P.elliottii plantation and P.taiwanensis natural stand,are described. Twenty six species of beetle were trapped,of which 14 are pine boring pests,occupying 53 8% of the total species trapped.Within the pine boring beetles,Shirahoshizo patruelis and Monochamus alternatus are the dominant pests with the highest population density. Eggs developed in ovary of the female pine sawyer and the ratio vary with the trapping date.The peak (16 9 eggs,41 9%) appeared before late June. It is concluded that M 99 1 is an effective method to monitor the population dynamics and cut down the population density of boring beetles .