楸螟生物学特性及防治研究  

STUDIES ON THE BIONOMICS AND CONTROL METHODS OF OMPHISA PLAGIALIS WILEMAN

作　　者：郭从俭 邵良玉 尹万珍 

机构地区：[1]河南省林业科学研究所 [2]驻马店地区薄山林场 [3]驻马店地区林业科学研究所

出　　处：《林业科学》1992年第3期213-219,共7页Scientia Silvae Sinicae

基　　金："七五"国家科技重点项目"楸树速生丰产技术研究"的子课题

摘　　要：楸螟在河南一年发生两代,以老熟幼虫在枝、干中越冬。第二代成虫羽化盛期及第一代幼虫孵化盛期(5月),是进行药剂防治的最佳时期。在此期间喷洒20％杀灭菊酯乳油1万倍液3次或2.5％溴氰菊酯乳油5000倍液4次(间隔5—10天),防治效果达100％;根埋3％呋喃丹颗粒剂防治1—2年生幼林,每株用量25g,防治效果为97.87—98.1％。Omphisa plagialis Wileman is an important insect pest of Catalpa bungei C.A.Meyer and causes severe damage to the growth of the young trees.The bionomics and control methods were studied in the laboratory and in the field from 1986—1990.It has two generations per year in Henan and overwinters as full grown larva in the branches and in the trunks.The peak period of eclosion of the second generation adult and hatching of the first generation larva (May) are the best period for chemical control.In this period, the control efficacy reaches 100％ with 20％ Fenvalerate(1:10000) or with 2.5％ Decamethrin EC (1:5000); the plastochrone is 5—10 days (spray 3 and 4 times, respectively). Embedding 3％ Carbofuran granules around the roots to control the larvae of 1—2 year young trees, the dosage is 25g per tree, the control effect is 97.87—98.10％.

关 键 词：螟蛾科 防治 生物学特性 害虫 

分 类 号：S763.420.1[农业科学—森林保护学]