摘要
梨瘿蚊是为害梨树芽叶的害虫 ,在江苏徐州地区每年发生 4代 ,以老熟幼虫越冬。笔者介绍了梨瘿蚊在徐州地区的年生活史和各虫期的主要生物学特性 ,测定了各虫态在恒温条件下的历期 ,计算出了各虫态的发育起点温度和有效积温 ;并提出了综合防治技术。
Dasineura pyri is a pest of pear trees seriously. The insects eat tree leaves. They reproduce four generations every year in Xuzhou. They live in winter by larvae.In the paper the living history about Dasineura pyri for one year and the main biological characteristic about the worm in each growth stage were reported. The developmental durations of various instars of Dasineura pyri under different temperature conditions were measured. And the development temperature(C) and effective accumulated temperature(K) were found. One of key control measures on the pest was put forward.
出处
《安徽农业科学》
CAS
2004年第5期953-954,956,共3页
Journal of Anhui Agricultural Sciences
关键词
梨瘿蚊
生物学特性
防治技术
Dasineura pyri,Biological characteristic,Control technique
