Greenhouse Technique for Evaluating Resistance to the Bandedwinged Whitefly (Homoptera: Aleyrodidae) Used to Evaluate Thirty-Five Foreign Cotton Cultivars1

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Abstract
A greenhouse procedure was developed for maintaining a culture of Trialeurodes abutilonea (Haldeman) on cotton, Gossypium hirsutum L. One U.S. and 35 foreign cotton cultivars were evaluated for relative levels of resistance or susceptibility to bandedwinged whitefly colonization and emergence of adults. When compared with the commercial cultivar ‘Deltapine 16’ (DPL-16), one foreign cotton, ‘C-1211,’ had significantly (P = 0.05) lower levels of whitefly colonization. Six foreign cultivars, ‘Lasani 11,’ ‘M4 (N.T. Sind),’ ‘4S 180,’ ‘CX 349,’ ‘138-F,’ and ‘108-F,’ had levels of colonization that were not significantly different from DPL-16. None of the cultivars had significantly less adult emergence than DPL-16, and 17 had adult emergence levels that were not significantly different.

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