绿竹密竹链蚧的生物学特性

Bionomics of Bambusaspis miliaris on the bamboo Dendrocalamopsis oldhami

密竹链蚧Bambusaspis miliaris是危害绿竹（Dendrocalamopsis oldhami（Munro）Keng f.）的一种新害虫.在福建尤溪1年发生1代,以大量的1龄若虫和少部分卵在绿竹秆部、枝条和叶上越冬.每雌产卵量10～105粒,平均43.0粒.产卵、孵化盛期分别在5月下旬和6月下旬.用40%乐果原液2～5 mL秆部注药防治成虫或若虫,防治效果达93.8%以上.

Bambusaspis miliaris （Boisduval） is a new pest damaging of Dendrocalamopsis oldhami （Munro） Keng f. It has one generation per year in Youxi Region of Fujian Province and overwinters as first-instar nymph and a few eggs on the stalks, branches and leaves of the bamboos. The fecunlity was from 10 to 105 per female adult with an average of 43.0 eggs. Tile peak periods for adult emergence and oviposition were in the third ten-days of May and in the third ten-days of June respectively. By injecting 2 ～ 5 mL of 40% Rogor into the bamboo stalk, the scale mortality was above 93.8 % .