危害园林树木扶桑的粉蚧调查和形态鉴定

扶桑因花期长、颜色艳丽和便于栽种管理,是我国华南等热带地区普遍种植的重要园林植物。本文通过野外调查,采集了扶桑等寄主植物上发生危害的3种粉蚧,分别是扶桑绵粉蚧、木槿曼粉蚧和美地绵粉蚧。通过制作玻片标本,从足、刺孔群、盘孔、和管腺等部位详细比较了3种粉蚧的玻片主要显微特征以及野外活虫虫体特征,为基层农林工作人员识别该类害虫提供参考。

Investigation and morphological identification of mealybugs endanger on Hibiscus rosa sinensis Linn of ornamental trees

As an important garden plant widely planted in tropical areas of South China, Hibiscus rosasinensis Linn have long flowering period, bright color and easy planting and management. We surveyed and collected more mealybugs on the garden plants in the wild. The results showed that three mealybugs of Phenacoccus solenopsis Tinsley, Maconellicoccus hirsutus Green and Phenacoccus madeirensis Green occurred on H. rosa sinensis and other hosts. We compared from the legs, cerarii, disk pores, and cylindrical ducts of the main microscopic characteristics by making silde and living body characteristics, respectively. It provides a reference for identify the mealybugs and its related species for the quarantine officials