Control of Corn Earworm on Cabbage, 1978

The test was located at the Agricultural Experiment Station in Inarajan, Guam. Seedlings were transplanted into the field (volcanic ash with a Mariana limestone base) on Apr 6, 1978. Each plot consisted of three rows 20 ft long and 4 ft apart. Each row consisted of 10 plants. A randomized complete block design with three replications was used. There were two treatments plus a control. Treatments were applied starting on Apr 10 and continued every four days until Jun 19. Heliothis spp. damage was assessed on May 23 and Jun 5 by counting the number of larvae per plant and then determining the percentage of infested heads.