论文部分内容阅读
茶白盾蚧(Phenacaspis manni Green)属同翅目(Homoptera)盾蚧科(Diaspididae)。寄生于寄主植物的叶片表面,吸食叶汁,雌体散居的情况下,叶表面呈现个别黄色斑点,大量寄生时使叶片枯黄和雕落。广西桂北油茶栽培区均有该虫发生,严重时,影响植株生长和结实。在广西桂北所种的小叶油茶(camellia sasanqua Thunb.),普通油茶(Camellia oleosa (Lour.)Rehd.)等均有发生,其他寄主尚未发现,越多时个别虫体在禾本科杂草上,绝大部分则在油茶上。 由于它们的特殊生活方式,所以生活史的研究比较困难,现在就作者在16个月内的定期采集和试验分析,提供该虫生活情况如下,以作防治的参考。
Phenacaspis manni Green belongs to the genus Diaspididae of the Homoptera. Parasitic host plant leaf surface, leaf juice intake, females living in the case, the leaf surface presents individual yellow spots, leaves a large number of parasitic yellow and carved fall. The pests occurred in the cultivation area of Camellia oleifera in Guangxi and Guangxi Provinces. In severe cases, the growth and fruiting of the plants were affected. Camellia sasanqua Thunb., Camellia oleosa (Lour.) Rehd., Etc. are all found in Guangxi Guangxi. Other hosts have not yet been found. The more individual worms are on grass weeds, The vast majority are on the tea. Due to their special way of life, the study of life history is more difficult. Now, on a regular basis within 16 months, the author collects and tests the insects to provide the following information about the living conditions of the insects as a reference for prevention and treatment.