研究彙報第七十九期 ， Page 51 -60，出版時間：2003- 6， 詳細內容

作者：白桂芳、王玉沙

　　 銀葉粉蝨 (Bemisia argentifolii Bellows & Perring) 以花椰菜 (Brassica oleracea L.) 及胡瓜 (Cucumis sativus L.) 飼育，測定其未成熟期 ( 卵至成蟲羽化 ) 發育時間、雌蟲壽命、生殖力及子代性比。銀葉粉蝨飼以花椰菜之發育時間 (16.75 日 ) 顯著較飼育胡瓜者 (18.62 日 ) 為短。雌蟲飼以花椰菜及胡瓜之總產卵量各為 91.80 個 / 雌及 135.71 個 / 雌，每日每雌產卵量則分別為 6.58 個 / 雌 / 日及 5.33 個 / 雌 / 日，二種寄主間差異顯著。又雌蟲於花椰菜及胡瓜上之壽命分別為 15.64 日及 21.42 日；子代性比 [ 雌 /( 雌 + 雄 )] 各為 0.81 和 0.67 。銀葉粉蝨取食花椰菜及胡瓜，其族群淨增殖率 (91.80 、 116.44) 、內在增殖率 (0.1853 、 0.1657) 及族群世代時間 (24.39 日、 28.70 日 ) 各異。顯然寄主植物種類影響銀葉粉蝨之發育、壽命、生殖力、子代性比和族群介量，而銀葉粉蝨之生物特性應與其對寄主植物的適應性有關 。

關鍵字： 寄主植物、銀葉粉蝨、發育、生殖力、族群介量 。

Silverleaf whitefly (SLWF), Bemisia argentifolii Bellows & Perring, fed on cauliflower and cucumber, were evaluated the developmental duration, longevity, fecundity and sex ratio of progeny. Completed immature durations were in 16.75 and 18.62 days which fed on cauliflower and cucumber, respectively. Adult females lived an average of 15.64 days (on cauliflower) and 21.42 days (on cucumber). Females laid 91.80 and 135.71 eggs (with a rate of 6.58 and 5.33 eggs/female/day) on cauliflower and cucumber, respectively. The offspring sex ratio of the SLWF favored the female 0.81 and 0.67 which fed on the two host plants. The SLWF population increased 91.80-fold in a mean generation time of 24.39 days with an intrinsic rate of increasing of 0.1853 eggs/female/day on cauliflower, and increased 116.44-fold in a mean generation time of 28.70 days with an intrinsic rate of increasing of 0.1657 eggs/female/day on cucumber. We suggested that host plants affected the development, longevity, fecundity, sex ratio and population parameters of SLWF significantly, and the biological characterization of SLWF connect with the adaptation of the whiteflies on its host plants.

Key words: host plants, Bemisia argentifolii, development, fecundity, population parameters.