摘要
本文探讨了不同寄主植物对烟粉虱种群暴发的影响。在 2 8℃恒温下 ,组建了烟粉虱在甘蓝、番茄、茄子、烟草、黄瓜、辣椒、西葫芦、青菜等 8种不同寄主植物上的实验种群生命表。结果表明 :烟粉虱对寄主有较强的选择性。烟粉虱在黄瓜、番茄上的产卵量最大 ,平均每头雌虫分别达 382头和 2 4 6头。各寄主植物上烟粉虱种群内禀增长率在 0 2 4 33～ 0 3790之间 ,取食番茄的内禀增长率rm 最大 ,达 0 3790 ,不同寄主植物上烟粉虱内禀增长率大小依次为番茄 >甘蓝 >黄瓜 >西葫芦 >茄子 >烟草 >辣椒 >青菜。保护地蔬菜面积扩大是烟粉虱种群暴发的重要原因之一。
Effect of different hosts on population outbreak of Bemisia tabaci was researched in this paper. Life-tables of an experimental population of B.tabaci feeding on eight species of host plants (cabbage, tomato, eggplant, tabacco, cucumber, pepper, cucurbit and brassica) at 28℃ were estimulated. The results indicated that B.tabaci had a powerful choice on host. Higher oviposition number occurring on cucumber and tomato were 382, 246 perfemale respectively. The intrinsic rate of increase (r m) varing from 0.2433 to 0.3790 with r m higher on eggplant was 0.3790. The order of the intrinsic rate of increase (r m) were tomato>cabbage>cucumber>cucurbit>eggplant>tabacco>pepper>brassica. One of the causes of population outbreak for B.tabaci was the area of green house vegetable in increased.
出处
《植物检疫》
2005年第2期73-76,共4页
Plant Quarantine
基金
江苏省"八五"攻关项目 (BE2 0 0 132 8)
