竹线盾蚧生物学特性和防治

Bionomics and chemical control of Kuwanaspis phyllostachydis

竹线盾蚧是浙江省临安市笋用竹 (雷竹和高节竹 )上蚧虫类的主要种 ,在当地笋用竹区发生普遍。该虫在浙江临安 1a发生 8代 ,以雌成虫孕受精卵于 1 1月下旬在贴于竹秆上的介壳中过冬 ,翌年 3月下旬雌成虫产卵 ,4月初卵孵化。若虫孵化盛期 ,即在若虫未固定 ,未分泌蜡丝时期 ,选用 1 0 0 0倍液的特效菊巴马乳油进行竹秆喷雾 ,防治效果达到 94 0 %以上。表 1参

Kuwanaspis phyllostachydis ,damaged on shoot bamboo(such as Phyllostachys praecox and Ph.prominens )used as vegetable in Linan City,Zhejiang Province,P.R.China,overwinters in the female adults with fertile eggs in shell on bamboo culms,depositing and hatching in the last ten days of March to the first days of April of the following year.It has 8 generations a year in Linan City.Control could be made at the hatching peak of nymphae by spraying bamboo culms with 1 000 fold solution 'Jubama' EC(a species of green pesticide),resulting in more than 94 0% of the nymphae being killed.