Abstract Chico III and Campbell 28 tomatoes were direct seeded in alternating rows with a Planet Jr. Chico III tomatoes were planted on May 30 and Campbell 28 tomatoes were planted on Jun 5. The Chico III tomatoes served as buffer rows and were planted early so as to encourage an infestation of Colorado potato beetle. Plots consisted of a single row of tomatoes 45-ft long, buffered on each side by a guard row; distance between rows was 6 feet. When the plants were 2-3 inches tall they were thinned so as to provide clumps of 3 tomato plants spaced 12-inches apart. The plots were arranged in a randomized complete block design with 4 replications. All treatments were applied pre-plant in a 24-inch band using a small push type Gandy applicator on Jun 5. They were incorporated into the top 3-5 inches of soil with a rototiller. Soil temperature at the 4 inch depth at the time of treatment was 70°F. Soil was classified as a Norfolk “A” loamy sand. When plants were 3-4 inches tall, 10 plants were selected at random in each plot and rated visually to the nearest 10% defoliation. Yield data were taken from a 10 ft section in the center of each plot. Yield data from 5 different harvest dates were combined and reported in tons/acre. Plots were irrigated when moisture was below normal.