Seed Treatment and Foliar Insecticidal Control of Fall Armyworm in Florida Sweet Corn, 1991

Abstract

Three raised, plastic-mulched beds on 1.8 m centers were divided into 4 replicate blocks. Each block was comprised often 4.3 m single-row plots separated by 0.6 m of buffer space. Five randomly selected plots in each block were planted on 28 Oct with three seed per planting hole spaced every 25 cm in double rows 25 cm apart. Remaining plots were planted with seed from the same lot which had been treated just prior to planting with Larvin 3.2, by mixing a small amount of seed with sufficient chemical to give a treatment rate of 1.4 L per 100 lbs seed. The number of seedlings was noted and plants were thinned to one stalk per planting hole. Five post-planting treatments were assigned randomly to the two seed treatment categories in each block. Beginning 11 Nov, plants were evaluated positive or negative for feeding damage to the whorl and 2 uppermost leaves.