不同食料植物对美国白蛾生长发育和繁殖的影响  

Effects of different food plants on the growth,development and reproduction of fall webworm,Hyphantria cunea,larvae

作　　者：武海卫[1] 康智[1] 信善林 秦绪兵 张秋梅 刘焕秀[1] 

机构地区：[1]山东省林业科学研究院,济南250014 [2]山东省寿光市林业局森保站,寿光262700 [3]山东省林木保护站,济南250014

出　　处：《应用昆虫学报》2012年第4期963-968,共6页Chinese Journal of Applied Entomology

基　　金：山东省科技攻关项目(2009GG10009020)

摘　　要：2010年6月至7月,在室内研究了美国白蛾Hyphantria cunea(Drury)第1代幼虫对洋白蜡、欧美107号杨、法桐和白榆的取食量及不同的食料种类对美国白蛾生长发育和繁殖的影响。结果表明,美国白蛾对受试的各树种的取食量以洋白蜡为最多,完成一代平均每头可以取食2.21 g,其次为欧美107号杨1.95 g,再次为法桐和白榆,分别为1.85 g/头和1.68 g/头。3龄后幼虫对不同的寄主呈现出一定的偏好性,特别是5龄和6龄幼虫对不同的寄主的取食量表现出显著差异。不同的食料植物对美国白蛾幼虫和蛹的发育历期、存活率、蛹重、成虫寿命、产卵量等有显著影响。取食法桐对其生长发育和繁殖表现出明显的不利性,主要表现为幼虫期延长、蛹重减轻、单雌产卵量降低。Larvae of the first generation of Hyphantria cunea （ Drury ） were reared on leaves of four different food plant species; Fraxinus pennsylvanica Marsh. , Populus × euramericana ＇ Neva＇ , Platanus orientalis L. and Ulmus pumila L. , under laboratory conditions in June and July 2010, and their food consumption, development and reproduction measured and compared. Larvae reared on F. pennsylvanica had the highest leaf consumption with each larva consuming about 2.21 g leaves to complete from hatching to pupation, followed by larvae raised on P. ~ euramericana ＇Neva＇ which consumbed 1.95 g. Larvae raised on P. orientalis and U. pumila consumed much less food throughout the larval stage, about 1.85 g and 1.68 g respectively. Differences in consumption of the different food plants first became apparent in fourth instar larvae and were particularly obvious in the fifth and sixth instars. Different food plants had significant effects on larval and pupal developmental duration, survival rate, pupal weight and fecundity. Our results indicate that P. orientalis does not support optimal larvae development and reproduction because feeding larvae on the leaves of this plant prolonged larval stages, decreased pupal weight and reduced average fecundity.

关 键 词：美国白蛾 取食量 食料植物 生长发育 

分 类 号：S763.42[农业科学—森林保护学]