Research progress on ecology of Ips typographus
云杉八齿小蠹生态学研究进展

Ips typographus is one of the most damaging bark beetles in Europe,which can attack weak spruces and aggregate in larger area via the pheromone produced by males.The aggregation pheromones can not only lead to aggregation,but also modify the density of aggregation.During the period of host orientation,both host volatiles and nonhost volatiles could be used to distinguish host or nonhost.In forest ecosystem,predatories and parasitoids greatly affect the population density and behavioral ecology of I.typographus.This paper reviewed the research progress on the distribution and pervasion of I.typographus,kinds of natural enemies and their control functions,behavioral control of beetle and its natural enemies by semiochemicals,and present status of pheromone protection.