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Susceptibility of Upland Cotton Cultivars Deltapine 5461 and Louisiana 887 to Silverleaf Whitefly Colonization

Chang-Chi Chu, Eric T. Natwick, Donald. E. Brushwood, Thomas J. Henneberry and Allen C. Cohen


 
ABSTRACT

In the three years study from 1994 to 1996, both Deltapine (DPL) 5461 and Louisiana (LA) 887 were susceptible to silverleaf whitefly colonization. When the insect was not controlled, silverleaf whiteflies infestation were higher on LA 887 leaves as compared to DPL 5461 leaves. Lint yields were low, although DPL 5461 yielded more than LA 887. When whiteflies were controlled with Danitol-Orthene at 4.1 adults per leaf turn, silverleaf whitefly densities were greatly reduced. Lint yields were also significantly increased. However, DPL 5461 requires fewer insecticide applications than LA 887 to optimize yield.



Reprinted from Proceedings of the 1997 Beltwide Cotton Conferences pp. 1064 - 1066
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998