南岳松墨天牛生物学特性研究

Bionomics of Monochamus alternatus Qccurring in Nanyue Mountains

松墨天牛(M onochamus a lternatus)为松树的主要蛀干害虫。在南岳低山马尾松(P inusm as-son iana)林内1 a发生1代,以3、4龄幼虫在树干木质部蛹室内越冬。翌年4月下旬开始化蛹,5月中旬成虫开始羽化出孔,盛期为6月;6月上旬成虫开始产卵,6月中旬开始孵化为幼虫。可采用多种防治方法有效控制该虫危害。

Monochamus alternatus is main insect invading pine trunk. The study shows that is only occurrs one only the generation in a year in the forest of Pinus massoniana in Nanyue mountains,ovevwinter in the pupal chamber of the trunk xylem in 3 or 4 stage larvae, and begins to pupate in the late April of the second year. The adults start emerging from hole in the middle May, reach the peak in June,and lays eggs in the early June. Eggs begin to become larvaes in the middle June. Many methods could effectively control the pest.