Temperature-Dependent Development of Sweetpotato Whltefly, Bemisia tabaci (Homoptera: Aleyrodidae), Biotype "B"

T.L. Wagner


 
ABSTRACT

The sweetpotato whitefly, Bemisia tabaci (Gennadius), was reared on DES 119 and Pima S-6 cotton at 31 constant temperatures. Development times of eggs, nymphs, and the combined immature stages were recorded and assembled into frequency distributions at each temperature. From these data, median and mean development times and rates were derived for each life stage, as were temperature independent distributions of normalized development times. Models describing the rate vs temperature and distributional relationships were constructed. The models can be used to predict life-stage development of populations under fluctuating temperature regimes. Results are compared with those of other biotypes.



Reprinted from 1993 Proceedings Beltwide Cotton Conferences pp. 714 - 718
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998