(E82) TOMATO: Lycopersicon esculentum Miller, 'Agriset' SOUTHERN ARMYWORM, THRIPS AND STINK BUG MANAGEMENT ON FRESH MARKET TOMATOES, SPRING 2002 David J. Schuster Gulf Coast Res. & Educ. Ctr. 5007 60th St. E. Bradenton, FL 34203 Tel: 941-751-7636 Fax: 941-751-7639 email@example.com Southern armyworm: Spodoptera eridania (Cramer) Flower thrips: Frankliniella bispinosa (Morgan) Southern green stink bug: Nezara viridula (L.) Transplants were set 7 Mar, 18 inches apart within the row on 8-inch-high and 32-inch-wide beds of EauGallie fine sand covered with white polyethylene mulch. Each plot consisted of a single 18-ft long row with rows on 5 ft centers. Treatments were replicated four times in a randomized complete block design and were applied with a 2.5 gal, hand-held CO -powered sprayer at 60 gpa on 15 and 22 Apr and at 90 gpa on 29 Apr, 6, and 15 May. The sprayer was fitted with a D-5 disk and no. 45 core and was operated at 60 psi. Fruit were harvested on 3 and 23 May. The number and weight of undamaged fruit and the number of fruit damaged by armyworm larvae, thrips (> 5 scars on the blossom end) and stink bugs were determined. The southern armyworm population was moderate for a spring trial with about 20% of the fruit in the check plots being damaged (Table 1). All treated plots, except the low rate of F0570, yielded more non-damaged fruit compared to the check. Fewer fruit damaged by armyworm larvae, relative to non-sprayed check plots, were harvested from all sprayed plots. Thrips and stink bug populations were low for a spring trial and no treatments resulted in fewer fruit damaged by thrips or stink bugs compared to the check. No foliar symptoms of phytotoxicity were observed with any treatment. This research was supported in part by the Florida Agricultural Experiment Station, and approved for publication as Journal Series No. N-02329.
Arthropod Management Tests – Oxford University Press
Published: Jan 1, 2003