Control of Worms and Aphids on Cabbage, 1977

A block of ‘Eastern Baldhead" cabbage planted July 24, 1977, by a grower (Robert Wiggin, Stratham, New Hampshire) was utilized. Spray treatments were made every 7 days to 20-foot rows of established trans-plants replicated four times and arranged in a Lattin square design using a 1-gallon B & G hand sprayer pressurized to 40 psi with CO2 and delivering 24 gallons of spray per acre. All combination treatments were tank mixed. Topical granular treatments were made at 14-and 28-day intervals using a Gandy plot applicator and directing the granules in a 7-inch band over the plants. Evaluations were made by counting the number of worms on each of 10 plants per replicate on August 25, 1977. Cabbage aphid control was determined by counting the number of plants per replicate that had at least one live aphid colony. Percent marketable heads was determined on November 10, 1977.