不同寄主对新菠萝灰粉蚧生长发育和繁殖的影响

Influence of Host Plants on the Development and Reproduction of Dysmicoccus neobrevipes(Beardsley)

新菠萝灰粉蚧是一种多食性昆虫。在恒温(25℃)条件下,研究并组建了新菠萝灰粉蚧在剑麻(Agavesisalana)、金边龙舌兰(Agave americana var.marginata)、仙人掌(Opuntia dillenii)和香蕉(Musa balbisiana)4种寄主植物上的实验种群生命表。结果表明,在上述4种寄主上新菠萝灰粉蚧发育历期及产仔量均有差异。种群趋势指数(I)分别为73.313、65.378、41.689、65.262。综合比较4种寄主植物,剑麻、金边龙舌兰和香蕉3种为新菠萝灰粉蚧的适宜寄主。

Dysmicoccus neobrevipes（Beardsley）is a polyphagous insect. Four host plants including Agave sisalana, Agave Americana vat marginata, Opuntia dillenii and Musa balbisiana were used to rear the Dysmicoccus neobrevipes （Beardsley） under constant temperature （25 °C ） in the laboratory, and the tables of its population in these hosts were set up. The influences of different host on the development duration and the number of eggs laid per female were observed. The population trend indices （I） were 73.313, 65.378, 41.689, 65.262. Among the test host plants, Agave sisalana, Agave Americana var marginata and Musa balbisiana were the most favorable host phants for Dysmicoccus neobrevipes（Beardsley） .