Study on Trapping Monochamus alternatus and Other Pine Boring Beetles with M99-1 Liquid Attractant
- Received Date: 2001-05-08
Abstract: 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.