内蒙古自治区柠条种子害虫为害情况及其对柠条种子质量的影响  

Survey of Seed Pest Harm on Caragana and Its Influence on Seed Quality in Inner Mongolia

作　　者：罗于洋[1] 李青丰[1] 金花 

机构地区：[1]内蒙古农业大学生态环境学院,呼和浩特010019 [2]内蒙古草原勘察设计院

出　　处：《水土保持研究》2006年第4期25-29,共5页Research of Soil and Water Conservation

基　　金：内蒙古自治区科委攻关项目:柠条种子害虫防除技术研究

摘　　要：2003年对内蒙古自治区各柠条产区种子害虫为害情况的系统调查研究结果表明,柠条种子害虫在内蒙古自治区从东到西各调查样地普遍发生,均为柠条种子小蜂(Bruchophagus neocaraganaeLiao)、柠条豆象(Kytorhi-nus immixtusMotschulsky)、豆荚螟(Etiella zinckenellaTreitschke)3种害虫混合为害,所调查地区各样地为害程度均在++以上,平均种子虫害率为26.53%,虫株率达100%;进行了虫害对种子质量的影响评价试验,结果表明,平均每千粒种子因虫害损失掉的重量是3.12 g,种子发芽率平均降低了9.51%。A study on pest characteristics and infections on Caragana seeds were conducted in 2003. The main results found in the study include： Caragana seed pests of Bruchophagus neocaraganae, Kytorhinus immixtus and Etiella zinchenella are widely distributed in Inner Mongolia Autonomous Region, causing seed quality deteriorated. Pest infestation degrees in all areas invested are above ＋＋. Average infection rate was 26.53%. Seed weight loss due to pest infections was 3.12g per 1000 seeds. Seed germination rate was lowered by 9.51%.

关 键 词：柠条种子害虫 危害损失率 种子质量 发芽率 内蒙古 

分 类 号：S763.7[农业科学—森林保护学]