The effect of Temik-Terraclor Super X in the seed furrow at planting plus side dressing with Temik 5 weeks later on yield, earliness, and nematodes, thrips, and plant bugs of 10 varieties was studied at Stoneville. The experimental design was a split plot with the pesticide and no pesticide treatments used as whole plots and varieties were sub plots. There were 6 replications used for the 3 year study, 1984 through 1986. Highly significant increases in seedling survival, plant height, flowering, percentage of the crop harvested at first picking, and lint yields were obtained by the pesticide treatment in comparison to those for the untreated check. Significant reductions in root-knot nematodes, root gall indices, thrips, and plant bugs were also detected. At first harvest, 87 and 67% of the total lint was recorded for the pesticide and no pesticide treatments, respectively. Lint yields for first and total harvests for the pesticide treatment were 133% and 146%, respectively, of the no pesticide treatment. Cultivar and cultivar X pesticide interactions were significant for the plant and pest characteristics measured indicating the need for having several cultivars in pesticide evaluations.