Development and reproduction of ‘B＇ biotype Bemisia tabaci （Gennadius） （Homoptera： Aleyrodidae） on four ornamentals  

作　　者：LILIN SHUN-XIANGREN 

机构地区：[1]Laboratory of Biological Control,South China Agricultural University,Guangzhou,China

出　　处：《Insect Science》2005年第2期137-142,共6页昆虫科学（英文版）

摘　　要：Effects of four commercial ornamentals on the development, survivorship and reproduction of the whitefly B biotype Bemisia tabaci (Gennadius) were studied in the laboratory (temperature 26 ±1℃; relative humidity 75%-90%; L: D 14:10). The total survivorship from egg to adult on hibiscus (Hibiscus rosa-sinensis L.), poinsettia (Euphorbia pulcherrima Will), cottonrose hibiscus (Hibiscus mutabilis L.) and variegated leafcroton (Codiaeum variegatum ‘Aucubaefolium') were 33.69%, 40.55%, 79.11%, and 29.39%,respectively. The developmental periods from egg to adult varied from 23.12 days on cottonrose hibiscus to 32.13 days on hibiscus. The average longevity of adult females ranged from 6.87 days on variegated leafcroton to 21.07 days on poinsettia. The average numbers of eggs laid per female were 9.20, 25.13, 54.45, and 26.79 on the above respective hosts. The intrinsic rates of natural increase (rm) for B biotype B. tabaci on cottonrose hibiscus was the highest. Based on life table analyses of whitefly populations, cottonrose hibiscus was the most suitable host for B biotype B. tabaci in this study.Effects of four commercial ornamentals on the development, survivorship andreproduction of the whitefly B biotype Bemisia tabaci (Gennadius) were studied in the laboratory(temperature 26 ± 1℃; relative humidity 75%-90%; L: D 14:10). The total survivorship from egg toadult on hibiscus (Hibiscus rosa-sinensis L.), poinsettia (Euphorbia pulcherrima Will), cottonrosehibiscus (Hibiscus mutabilis L.) and variegated leafcroton (Codiaeum variegatum 'Aucubaefolium ')were 33.69%, 40.55%, 79.11%, and 29.39%, respectively. The developmental periods from egg to adultvaried from 23.12 days on cottonrose hibiscus to 32.13 days on hibiscus. The average longevity ofadult females ranged from 6.87 days on variegated leafcroton to 21.07 days on poinsettia. Theaverage numbers of eggs laid per female were 9.20,25.13,54.45, and 26.79 on the above respectivehosts. The intrinsic rates of natural increase (r_m) for B biotype B. tabaci on cottonrose hibiscuswas the highest. Based on life table analyses of whitefly populations, cottonrose hibiscus was themost suitable host for B biotype B. tabaci in this study.

关 键 词：bemisia tabaci biotype B DEVELOPMENT SURVIVORSHIP REPRODUCTION 

分 类 号：S436.8[农业科学—农业昆虫与害虫防治] S433.3[农业科学—植物保护]