杉梢小卷蛾生物学特性观察  

Observation on Biological Characteristics of Polychrosis cunninghamiacola

作　　者：刘永忠 郭国寿 王宗银 

机构地区：[1]互助县五峰乡农科站,810500 [2]大通县第一中学,810102 [3]互助县五峰乡林业站,810500

出　　处：《青海农林科技》2007年第3期37-38,共2页Science and Technology of Qinghai Agriculture and Forestry

摘　　要：杉梢小卷蛾是互助县青海云杉上危害的主要害虫,该虫在我县年发生一代。雌虫平均产卵量为24.7粒,产卵部位集中于云杉当年萌发的新梢基部,卵期6—7d,幼虫共6龄,历期35—42d。用菊酯类药物防治该虫效果较好。Polychrosis cunninghamiacola is a major pest of Picea crassifolia in Huzhu county, it has one generation a year. The average egg unmbers of female was 24.7, the eggs were placed the base of new shoot in that year of thickleaf spruce, the period of eggs was 6-7d, the larue underwent 6 instals, the development time was 35- 42d. The control effect applying pynethroids was better.

关 键 词：杉梢小卷蛾 生物学特性 青海云杉 防治 

分 类 号：S763.42[农业科学—森林保护学]