M-99引诱剂有效引诱范围及余杭区松褐天牛成虫发生规律

通过试验确定，M—99引诱剂引诱松褐天牛Monochamus alternatus Hope成虫的有效距离为70m，引诱有效范围为1．5hm^2；用不同色泽的油漆在天牛成虫鞘翅背上做标记是成功可行的；从饲养笼内收集的松褐天牛成虫做好油漆标记，在室内饲养到第2天傍晚进行林间放飞的诱捕回收效果最好，其40、60、70m的总回收率为43．79％，60m处的回收率达70％；余杭区松褐天牛成虫发生始见期在5月初，终见期在9月底，5月下旬至8月中旬为盛期，是防治松褐天牛成虫的最佳时期。

Attracting limits of attractant M-99 and occurrence regularity of Monochamus alternatus adult in Yuhang area of Hangzhou

The experiment indicated that effective distance of attracting Monochamus alternatus adults with attractant M-99 was 70 m and the range was 1.5 hm~2.It was successful for marking proala crustaceas of M.alternatus adult with paint of different colors.The effect trapped was the best when the adults of emergence just were put to the forest in the evening two days after feeding,and all trapped rate was 43.79% in the spots of 40 m,60 m,70 m,which was 70% in the spot of 60 m.In Yuhang area of Zhejiang Province M.alternatus adult emerged from early May to late September.The peak of the emergence was from late May to middle ten days of August,the period was best to control the adult.