Definition on Integrated Control Indexs of Caragana Seed Pests

doi:10.3321/j.issn:1000-7091.2005.06.023

Abstract

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

CLC Number:

S793.37

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.

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