Spring Movement of Frankliniella fusca into Peanuts

Abstract

To evaluate the movement of the tomato spotted wilt virus vector, Frankliniella fusca, from overwintering sites to peanuts after planting, three sampling techniques were used: cylindrical sticky traps, trap peanut plants, and plastic sweater box cages. Sticky traps and trap peanut plants were set at 13 locations, 13.72 m apart in a newly planted peanut field and were changed 3 times per d at 0600, 1200 and 1800 hours for 14 d. Fifty-six plastic sweater box cages covered plants. Each day, 3 boxes were removed for a 24 h period. Data from the sticky trap collections based on day, trap location, sampling period, trap collections and compass direction indicate that F. fusca was present in the field throughout the 14 d period except on days with low temperatures (<19°C) and/or precipitation. Trap plant data supported that from the sticky traps. Results from the cages showed that F. fusca appeared in the peanuts 9 d after planting.