Field studies were conducted to compare single and multiple applications of Pix on cotton in Arkansas, Louisiana, Mississippi, Tennessee, and Texas. Pix rates and times of application ranged from 2.5g or 5g/ A applied at the 6-7 true leaf stage to 10g or 20g/A applied at early bloom (5-6 white blooms/25 row feet) stage.

Cotton plant height measured 30-40 days after early bloom and again at harvest indicated that Pix applied in split or multiple applications provided better height control than did single applications at "matchhead" square or at early bloom.

Pix multiple applications tended to increase boll numbers 30-40 days after early bloom, although when averaged over all studies and locations, no consistent differences in boll numbers were seen among all Pix treatments. Split or multiple Pix applications did not hasten maturity, as measured by percent open bolls at defoliation, compared to single applications of 20g at early bloom.

Over all studies, split or multiple Pix applications produced yield increases similar to those obtained from the 20g at early bloom treatment, which were consistently higher than those obtained from other single application treatments and from untreated control plots.