摘要
黄缘阿扁叶蜂Acantholyda flavomarginata Maa在赫章危害华山松。该虫1 a发生1代,以老熟幼虫在土中越夏越冬,翌年3月中旬开始化蛹,4月上旬始见成虫并产卵,4月中旬幼虫孵化,5月下旬幼虫开始下树入土,进入越夏越冬状态。4月中旬为成虫羽化、产卵盛期,4月中、下旬为幼虫孵化盛期。4月中、下旬为防治幼虫最佳时期。采用30%氯马乳油1500倍液树冠喷药,12 h虫口死亡率达90%以上。
Acantholyda flavomarginata Maa is an important pest on Pinus armandi in Hezhang County.It has one generation per year and overwinters in form of mature larvae in the soil.In middle March the next year,the overwintered larvae begin to pupate.In early April,the adult begin to emerge and lay eggs and the peak is in middle April.The eggs begin to hatch in middle April and the peak is in mid and late April.In late May,the larvae begin to climb down the tree for oversummering and overwintering.The best time for pest control is on middle and late April.The mortality rate of the larvae was more than 90% by spraying Beta-cypermethrin+malathion 30% EC.
出处
《贵州林业科技》
2007年第3期14-16,共3页
Guizhou Forestry Science and Technology
关键词
黄缘阿扁叶蜂
生物学特性
防治
Acantholyda flavomarginata
Biological characteristics
Control
