摘要
在复杂的生态环境中,来自于云杉八齿小蠹和植物的信息物质在云杉八齿小蠹的整个生活史中都发挥着重要的作用。雄性云杉八齿小蠹作为先锋虫以寄主植物的挥发物作为嗅觉信号搜寻和定位寄主,然后释放信息素吸引同性或异性云杉八齿小蠹前来聚集。云杉八齿小蠹成群攻击以降低寄主树木的抗性,寄主植物在受到云杉八齿小蠹攻击后能够利用其物理结构、分泌物及挥发性物质等抵御其危害。云杉八齿小蠹自身化学信息素的合成和对寄主树木次生代谢物质的转化能力,决定和影响着入侵寄主树木的速度和种群数量。本文从信息素组成、释放速率等方面、寄主和非寄主挥发物的作用及信息素诱捕器在监测和防治中的应用做一综述。
The bark beetle,Ips typographus（Coleoptera,Scolytidae） is one of the most significant pests of spruce,it can destroy large numbers of mature trees and cause substantial economic losses. The colonisation on spruce trees is initiated by pioneer I. typographus males. In the host location process of I.typographus,volatiles released by host are of utmost importance. After excavation of nuptial chambers,they release an aggregation pheromone that attracts both female and male conspecifics. Many plantreleased compounds act either as pheromone synergists or antagonists to I. typographus. This triggers a mass attack on a selected tree. An invasion also activates inducible defenses,which may include secondary resin production. Pheromones of bark beetles and transformation ability of secondary metabolites of the host trees are important biological control agents in depressing population density of bark beetles and attack ratio to host trees. Semiochemicals from both I. typographus and the host plant have integrated effects in the behavior of host colonization,mating,reproduction,etc. during the life cycle of a bark beetle.
作者
程彬
张健
侯丽伟
CHENG Bin;ZHANGJian;HOULi-Wei(Jilin Provincial Academy of Forestry Sciences,Changchun 130033, China)
出处
《环境昆虫学报》
CSCD
北大核心
2018年第2期268-275,共8页
Journal of Environmental Entomology
基金
吉林省重点科技攻关项目(20150204037NY)
吉林省重点成果科技成果转化项目(20125043)
