Reduction of Insect-Induced Apical Seediness in Strawberry, 1982

Nine insecticide treatments were evaluated against the tarnished plant bug on a 4-variety strawberry planting at Geneva, NY. The planting, established in 1980, consists of 40 rows, with each row having 4-2x20 ft sections of the varieties 'Honeoye', 'Canoga', 'Redchief, and 'Midway'. The planting was divided into 4 blocks and each treatment was randomly replicated once in each block. All replications received a treatment on May 25 '82 at 50 gal/acre. One-half of the row sections received a 2nd application of June 3 '82 (Test 2), while the remaining sections were restricted to the single application (Test 1). Fruit which ripened between Jun 14 and Jul 12 was harvested and rated as either injured or not injured. Injury was characterized as a collection of wel1-developed, closely-packed achenes in a depressed area on the berry. Percent injured fruit for the season are shown in the tables.