The Effect of Water Stress on Infestations of the Sweetpotato Whitefly

H. M. Flint, S. E. Naranjo, T. J. Henneberry, J. E. Leggett and D. L. Hendrix


Reducing water stress in cotton significantly reduces whitefly infestations. Drip irrigation provides the most effective method of application for reducing water stress and reduces whitefly infestations by about 50%. By increasing the frequency of furrow irrigation, either by using additional water or by more frequent irrigations with smaller amounts of water, whitefly infestations are reduced by about 30%. The reductions in whitefly infestations in well-watered cottons were not sufficient to avoid insecticide control. Additional yield may offset increased water costs depending on water costs.

Reprinted from Proceedings of the 1994 Beltwide Cotton Conferences pg. 867
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998