摘要
通过调查,在白石砬子自然保护区共采到小蠹28种,隶属4亚科14属,欧洲-西伯利亚区系种类占绝大多数.东北四眼小蠹(Polygraphus sachalinensis Eggers)、中穴星坑小蠹(Pityogenes chalcographus Linnaeus)、六齿小蠹(Ips acuminatus Gyllenhal)为优势种.小蠹虫在保护区内主要为害衰弱木、濒死木、枯萎木及风倒雪压木等,少数种类也为害健康树木,如黄须球小蠹(Sphaerotrypes coimbatorensis Stegbbing)、纵坑切梢小蠹(Tomicuspiniperda L.).不同海拔高度及不同林分类型小蠹种类及为害也有明显差异.及时清除,集中处理保护区内的风倒木,是控制虫源、减轻为害的重要措施.
From on site investigation, 28 species of bark beetles have been found in the Baishilazi Natural Reserve of Liaoning Province. They belong to four subfamilies and fourteen Genera.Most of the species are subordinate to the species of the Europe-Siberian Range. Three species are dominant, Polygraphus sachalinensis,Pityogenes chalcographus, and Ips acuminatus, A few species,such as Sphaerotypes, coimbatorensis and Tomicus piniperda, inhabit heathy trees, while the others inhabit weakened trees, windfalls, snowfalls and the like. The distribution and damage of the species of beetles show evident differences in various types of forest and heights above sea level. The most important method to control and reduce the numbers of these insects is to remove the weakened trees, snowfalls and windfalls from the forest and treat then as soon as possible before spring.
出处
《北京林业大学学报》
CAS
CSCD
北大核心
1992年第4期85-89,共5页
Journal of Beijing Forestry University
