We compared smooth-leaf okra- and normal-leaf upland cotton (Gossypium hirsutum L.) cultivars for susceptibility to colonization by Bemisia tabaci (Gennadius) biotype B. Seven field studies were conducted, five at Holtville, CA and two at Maricopa, AZ during 1996 to 2000. Okra-leaf cultivars as a group had significantly lower numbers of adults, eggs and nymphs compared to normal-leaf cultivars indicating the potential of okra-leaf genetic traits for reducing B. tabaci colonization. Results also suggest that okra-leaf shape may provide less favorable micro-environmental conditions as B. tabaci habitat because of more open canopy as evidenced by higher leaf perimeter to leaf area ratio. The okra-leaf cultivar Siokra L-23 appears to have genetic traits that should be examined further as a source of B. tabaci resistance.