Abstract
Abstract The insecticides were evaluated at the Kula Research Station, Maui Agricultural Park, from June to August. The field was set up in a RCB design with six treatments and four replications (blocks). Each treatment plot measured 70 ft by 7.5 ft. It consisted of four rows of cabbage on 36 in. centers and 18 in. in-row spacing. Adjacent rows were offset to allow equidistant plant spacing between rows. Treatments were applied using a tractor mounted with a PTO driven spray pump equipped with a 30 ft. boom. The boom was set with three banks nozzles that coincided with row spacing. Each group of nozzles had its own line from the main tank, therefore, spray output to specific treatment plots could be easily controlled by the sprayer operator. Treatments were applied at 45 psi with an output of 125 gpa. One TJ 60-8006 nozzle was used per row. The first treatment was made on 2 Jul, 1 day after transplanting. Subsequent applications were made on the following dates: 8, 16, 23, 30 Jul, 6, 13 Aug.
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