Abstract
Abstract Seeds of 7 tomato cultivars and 12 isogenic or near-isogenic mutants varying for foliar pubescence were obtained from C. M. Rick Tomato Genetics ResourceCenter (Department of Vegetable Crops, University of California, Davis). ‘Sunny’ was the control susceptible cultivar. On 20 Mar, transplants were set 18 inches apart on raised beds covered with blackpolyethylene mulch in Bradenton. The field plot consisted of 2 150ft long rows separate by 5 ft and irrigated by a seepage subirrigation system. Single plants wer replicated 1 times in a completely randomized design On 24 May, 7 Jun, and 20Jun, 2 terminal leaflets from the 6th leaf (counting from the top) and 2 terminal leaflets from the 8th leaf were collected from each plant. The area of each leaflet was measure and the numbers of eggs, nymphs and red-eyed nymphs (pupae) were recorded on a per 10 cm basis. On 1 April and on10 May, numbers of glandular (type VI) and nonglandular (types II, III and V)trichomes were counted per 8 mm2 on terminals from the 6th leaves.
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