摘要
对河北省美国白蛾的生物学特性及发生规律进行了研究。结果表明:美国白蛾在河北省每年发生3代,不同世代同一虫态的形态、历期、存活时间不同,成虫的交尾及产卵习性、卵的孵化率、幼虫的取食量及化蛹场所各异。其生物学表现及发生规律受当地气温、RH等气候因素影响。
The study on Bionomics & Outbreak Regularity of Hyphantria Cunea in Hebei Province indicates that Hyphantria Cunes breaks out 3 generations in Hebei annually, varying in the shape in the same stage, the duration of each generation and survival period for different generations, differing in the mating and ovipositing regularity of the adults, incubation rate, intake of the larvae and pupation spots. The biological phenomena and outbreak regularity depend on the climate factors like local temperature and RH etc.
出处
《河北农业科学》
2001年第3期30-38,共9页
Journal of Hebei Agricultural Sciences
基金
国家林业局森林病虫害防治工程治理科技支撑项目
河北省唐山市科委资助项目(NO:992501)
关键词
河北
美国白蛾
生物学特性
发生规律
害虫
Hebei province
Hyphantria Cunea
Biology
Outbreak regularity
