Control of Lepidopterous Larvae with Insecticides, 1996

‘Early Jersey Wakefield’ cabbage were transplanted on 8 Api at McGees Crossroads (MGX) near Benson, NC. Single-row plots 10 ft long on 42 inch centers were replicated 4 times in a RCB design. Alleys of 5 ft were used between replicates. Treatments were applied with a CO2 pressurized backpack sprayer using a single hollow cone nozzle (18X) operating at 60 psi to deliver 54.5 gpa. Applications with Triton AG-98 (spreader) were made with all treatments 22 and 28 May. Visual estimates of foliar damage were made on a scale of 1-10 as given in the 1st table and insect counts were made 28 May and 4 Jun. Heads were rated on 13 Jun on a scale of 1-5 as given in the 2nd table. Heads with ratings 1, 3 and 4 were considered marketable.