广西北部湾桐花树毛颚小卷蛾生物学特性及防治  

Bionomics and control of Lasiognatha cellifera in Beibu Gulf of Guangxi

作　　者：李德伟[1] 吴耀军[1] 罗基同 赵程劼[1] 梁立道 秦元丽[1] 

机构地区：[1]广西林业科学研究院,广西南宁530001 [2]广西森林病虫害防治站,广西南宁530022 [3]钦州市森林病虫害防治站,广西钦州535000

出　　处：《中国森林病虫》2010年第2期12-14,11,共4页Forest Pest and Disease

基　　金：广西林业科学研究项目(桂林科字[2009]12号)

摘　　要：桐花树毛颚小卷蛾Lasiognatha cellifera Meyrick是广西北部湾桐花树的主要害虫，通过室内饲养和林间观察研究，对桐花树毛颚小卷蛾各虫态的形态特征进行了描述，基本了解其生活习性及生活史。该虫在广西北部湾地区1a发生12代，世代重叠。以2～3龄幼虫在桐花树叶片上卷叶越冬，3月上旬开始羽化为成虫，1～2d后即交配产卵，平均每雌产卵量76粒。卵历期2—4d，幼虫历期11～15d，蛹历期7～8d，成虫寿命约6d；该虫有2个明显的危害高峰期，分别出现在春季和秋季。提出桐花树毛颚小卷蛾的初步防治建议。In Beibu Gulf of Guangxi, Lasiognatha cellifera Meyrick was the major pest attacking Aegiceras corniculatum. The morphological characters of the adult, egg, larva and pupa of L. cellifera were described and its life cycle and habits were studied based on the observation in mangrove forest and rearing in the laboratory. The pest had 12 generations a year in Beibu Gulf and the generations overlapped,It overwintered as the 2nd-3rd instar larvae in rolled leaves. The adult of the overwintering generation appeared in the first ten days of March. The copulation and oviposition took place 1 or 2 days after the emergence. The average fecundity was 76 eggs per female. The duration of the egg, larva and pupa were 2-4 days, 11-15 days and 7-8 days respectively. The longevity of adult was about 6 days. It had two distinct infestation peaks, one in spring and the other in autumn. The control methods were also suggested.

关 键 词：桐花树毛颚小卷蛾 生物学特性 红树林 

分 类 号：S763.42[农业科学—森林保护学]