丝棉木金星尺蛾生物学特性与绿色防控策略  

Biological Characteristics of Calospilos suspecta and Green Pest Control Strategies

作　　者：任建敏 REN Jianmin(Forestry Harmful Organism Control and Quarantine Station of Guangde City,Xuancheng 242200,Anhui,China)

机构地区：[1]广德市林业有害生物防治检疫站,安徽宣城242200

出　　处：《安徽林业科技》2022年第4期12-18,58,共8页Anhui Forestry Science and Technology

摘　　要：丝棉木金星尺蛾是一种取食量大、危害猖獗的食叶害虫。2019—2021年在野外调查与室内饲养的基础上,研究了丝棉木金星尺蛾的形态特征、发生规律及生活习性等。该虫在广德市一年发生4~5代,分别在10月中下旬、11月中下旬以蛹在枯枝落叶及2~4 cm土层中越冬,越冬期140~170 d;翌年3~4月初始见越冬代成虫;幼虫危害盛期多在第1代、第3代,大发生时幼虫将叶片、嫩芽啃食殆尽,部分固定监测点叶被害率达100%,也是防治关键期;越夏蛹有明显的滞育期。该虫种群数量随季节消长明显,需在长期监测的基础上,采用营林措施、生物制剂精准调控种群数量等实现绿色防控。Calospilos suspecta is a pernicious leaf-eating pest with large food intake.From 2019 to 2021,a study was made on such aspects as morphology,occurrence regularities and living habits of the pest based on field surveys and indoor feeding.The insect has 4~5 generations a year in Guangde City and winters in pupae in dry branches and fallen leaves and 2-4 cm soil-layer in mid and late October and mid and late November respectively with a wintering period of 140-170 D;the adults from over-wintering pupae appear from next March to early April;the 1st and 3rd generation pupae usually cause the biggest damage with the leaves and buds almost eaten up by the larva in the outbreak period,which is also the key period for control,with 100%leaf loss in some monitoring points;over-summering pupae have a significant diapause period.The pest population has significant fluctuations with changing seasons,which requires that forest management and biologics measures should be taken to control the pest population to realize green pest control based on long-term monitoring.

关 键 词：丝棉木金星尺蛾 形态特征 生活习性 绿色防控 

分 类 号：S763.3[农业科学—森林保护学]