摘要
用自动式树干注射器注射２０～５０倍农药，防治梨二叉蚜、梨瘿华蛾、大蓑蛾、杨枯叶蛾、中国绿刺蛾、舞毒蛾、梨木虱、苹掌舟蛾等害虫，杀虫效果较好，具有省药、省水、不污染环境、不杀伤害虫天敌等优点。
Theinsecticidedilutedfor20to50timeswithwaterwasputintotrunkbyaautomatictrunkinjectortogetridofinjuriousinsect.Itwasobviousthatsomeinsectswerecontrolledafterinjection,suchasSchizaphispiricola(Matsunmra),SinitineapyrigollaYan,ClaniavariegataSnellen,GastropachapopulifotiaEsper,Latoiasinica(Moore),LymantriadisparL,Phaleraflavescens(BremeretGrey)andPsyllachinensisYangetc.Themethodwasespeciallysuitableforthepreventionandcontrolofinsectinornamentandgardentreesincity.Italsohadthecharacteristicofsavingwaterandinsecticideaswellasnoenvironmentalpollutionandnokillingofnaturalenemyofinjuriousinsect.
