Abstract
Frankliniella fusca (Hinds) were reared on peanut foliage and artificial diet in growth chambers at 80°±2°F, 60-80% RH, and 12 hour alternations of darkness and 2000 ft-c of light. Cultures were maintained on potted plants in cellulose nitrate sheeting-glass cages ventilated by forced air. Potted seedling plants were tested for preference by female thrips in a 36-in. circular cellulose nitrate sheeting-glass cage which was rotated on a turntable and ventilated by forced air. Oviposition and antibiosis studies were made by caging thrips on peanut leaves with 4-in sections of seamless dialysis tubing sealed with filament tape. Adult emergence from larvae reared on the Adkisson-Vanderzant wheat germ diet was 87% compared with 63% for those from larvae reared on peanut leaves. Larval production from females reared on the diet was also greater than that of females reared on foliage. The lifecycle duration was equal on the diet and foliage. Antibiosis and preference tests revealed significant differences among entries in thrips survival and preference.
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