摘要
一字竹象虫成虫期(篌竹林内),用2.5%溴氰菊酯乳剂每亩5～10ml,喷雾二次(二次间隔为5～7天),防治效果可达90%以上,用40%SN—851每亩100ml或25%菊乐合酯每亩150ml喷雾,24小时平均药效达100%。一字竹象虫幼虫期(毛竹林内),在笋高1.5～2m时,用50%甲胺磷乳油原液,每株0.5ml,进行竹腔注射,平均防效97.2%。经大面积推广应用,防治效果好,经济效益明显。
Spraying twice with 2.5% emulsion of Decis (deltamethrin) at 5-10 ml/mugave over 90% mortality and average mortality of 100% was occured by spraying with 40%SN-851 at 100 ml/mu or with 25% synthetic pyrethrins and dimethoate at 150 ml/mu at theadult stage of Otidognathus davidis on Phyllostachys nidularia stand in 24 hr. Bamboo cavityinjection with 50% Tamaron (methamidophos) at 0.5ml/plant gave an average mortality of97.2% at the larval stage of O. davidis on Ph. pubescense stand when bamboo shoots was 1.5-2.0 metres hight. After wide scal application of the treatments, the economics benefit is significant.
出处
《浙江林业科技》
北大核心
1992年第1期23-26,56,共5页
Journal of Zhejiang Forestry Science and Technology
