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Developmental characteristic of Bemisia tabaci(Gennadius) Q-biotype on three host plants
- 언어ENG
- URLhttps://db.koreascholar.com/Article/Detail/291652
Developmental periods of sweet potato whitefly, Bemisia tabaci(Gennaius) Q-biotype, were investigated on three host plants- sweet bell pepper (Capsicum annuum L.), eggplant(Solanum melongena L.) and oriental melon(Cucumis melo L. var. makuwa MAKINO). Egg and nymph development of B. tabaci were studied within temperature ranging of 15℃-35℃ by 2.5℃ under photoperiod 16:8(L:D). Egg period of B. tabaci was the shortest at 32.5℃ and nymphal period was shortest at 27.5℃ on sweet bell pepper. Nymphal period of B. tabaci on eggplant was the shortest at 27.5℃ as well. On the other hand, nymphal period of B. tabaci was shortest at 30℃ and 32.5℃. Lower temperature threshold and effective degree-day for completing egg development on sweet bell pepper were estimated as 13.11, 91.95, respectively. Lower threshold temperature of nymphal stage on sweet bell pepper, eggplant, oriental melon were estimated as 13.01, 13.39, 12.31,respectively. Degree-days required to complete nymphal stage on sweet bell pepper, eggplant, oriental melon were estimated as 191.22, 164.41, 190.34, respectively. The relationships between development rates of egg and nymph were well described by poikilothermal rate function and weibull function. The fitted curves will be used as input for a simulation model of the population dynamics of B. tabaci.
