考氏白眉蚧的生物学特性及防治

通过1986～1989年室内外饲养观察，该虫在广州1年发生6代，以雌成虫在被害枝叶上越冬。1月下旬越冬成虫开始产卵。田间若虫于2月上中旬、4月下旬、6月中旬、8月上旬、10月上旬出现5次高峰。该虫的捕食性优势种天敌主要有中华草岭、尼氏钝绥螨。寄生性优势种天敌主要为跳小蜂科的一种小峰（学名待定），对雌成虫的寄生率高达63％～76％。加强观赏植物管理，保护和利用自然天敌，适时施用40％氧乐果、25％喹硫磷、40％速扑杀乳油或60％柴油乳剂，能很好地控制该虫的发生。

Bionomics of Pseudaulacaspis cockerelli (Cooley) and its control

During 1986 to 1989, it was found that Pseudaulacaspis cockerelli (Cooley) multiplies six generations within one year in Guangzhou, and the female adults hibernate in the leaves of the infected plants. The hibernating adults begin their egg-deposition during the last ten days of January. The nymph has five multiplying peaks during the following time: the first twenty days of February,the last ten days of April, the secorid ten days of June, the first ten days of August, and the first ten days of October. The enemies of predacity to the nymph are mainly Chrysopa sinica Tjeder and Amblyseius loui Muma. The parasitic anemy is mainly a kind of Chalcifly (be1onging to Enyrtidae, its scientific name under discussion). Its parasitic rate to the female adults is as high as 63 % ~76%. Strengthening the management of the ornamental plants, protecting and making good use of the nature enemies, and spraying with 40% Omethoate, 25% Qulnalphos, 40% Methamidophos, and 60% Diesel Emulsio at the right time is a good way to control the multiplying of the scale insects