秦岭西部林区华山松大小蠹调查与防治分析

Investigation and Prevention Analysis of Dendroctonus armandi in Qinling Western Forest Area

采用野外定点调查的方法,观察研究了不同海拔地区华山松大小蠹生活史和生活习性。结果表明,秦岭西部华山松大小蠹以幼虫越冬,华山松大小蠹存在世代重叠现象,在同一样地也可能存在第2代成虫与越冬代幼虫羽化的成虫同时扬飞的现象,但大部分华山松大小蠹也能完成2个世代。宝鸡市马头滩林业局在多年来各种防治方法经验累积的基础上,采取综合防治方法控制华山松大小蠹的危害。

Using the method of field fixed-point survey,the life history and life habits of Dendroctonus armandi were observed and studied at different altitudes.The results showed that D.armandi overwintered with larvae in the western Qinling Mountains.D.armandi had generation overlapping.In the same way,there might also be the phenomenon that the second-generation adult and the overwintering larvae emerged at the same time.However,most of D.armandi could also complete two generations.Based on the accumulated experience of different control methods over the years,Baoji Matoutan Forestry Bureau had adopted a comprehensive control measure to control the damage of D.armandi.