摘要： 为了了解和掌握柠条种子害虫的发生、发展规律，进而对其进行综合治理，于2003年采用田间与室内调查研究相结合的方法对内蒙古自治区柠条产区种子害虫防治指标的确定方法进行了系统研究，分别建立了中间锦鸡儿（Caragana korshinskii）、小叶锦鸡儿（Caragana microphylla）和柠条锦鸡儿（Caragana intermedia）等3种柠条上柠条种子小蜂（Bruchophagus neocaraganae（Liao））、柠条豆象（Kytorhinus immixtus Motschulsky）、豆荚螟（Etiella zinckenella（Treitschke））等3种种子害虫幼虫数与种子产量损失率的回归模型：Y=-0.254X1-0.595X2+0.173X3+116.236；Y=-0.045X1+0.480X2-0.760X3+30.453；Y=0.04766X1+0.04374X2+0.01845X3+2.380；同时得出柠条锦鸡儿、中间锦鸡儿、小叶锦鸡儿上种子害虫幼虫复合防治指标的计算公式分别为：2.34707=-0.04766X1-0.04374X2-0.01845X3；116.1461=0.254X1+0.595X2-0.173X3；30.3332=0.045X1-0.480X2+0.760X3。
关键词:
柠条,
柠条种子害虫,
复合防治指标
Abstract: Seed pests(Bruchophagus neocaraganae(Liao),Kytorhinus immixtus Motschulsky,Etiella zinckenella(Treitschke))have caused heavy losses to Caragana seed industry.In order to bring the Caragana seed pests under control and to promote seed industry,a study of the definition of integrated control index of seed pests on Caragana seeds were conducted.Respectively defined the regression model about larvas quantity and seed loss rate on Caraganas(Caragana intermedia;Caragana microphylla and Caragana korshinskii):Y=-0.254X1-0.595X2+0.173 X3+116.236;Y=-0.045X1+0.480X2-0.760X3+30.453;Y=0.04766X1+0.04374X2+0.01845X3+2.380;And integrated control indexes were calculated.2.34707=0.04766X1+0.04374X2+0.01845X3;116.1461=0.254X1+0.595X2-0.173 X3;30.3332=0.045X1-0.480X2+0.760X3.
Key words:
Caragana,
Caragana seed pests,
Integrated control index
中图分类号:
罗于洋, 李青丰, 金花. 柠条种子害虫复合防治指标的确定[J]. 华北农学报, 2005, 20(6): 88-92. doi: 10.3321/j.issn:1000-7091.2005.06.023.
LUO Yu-yang, LI Qing-feng, JIN Hua. Definition on Integrated Control Indexs of Caragana Seed Pests[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2005, 20(6): 88-92. doi: 10.3321/j.issn:1000-7091.2005.06.023.