We have conducted experiments on this problem for five years, and summaries of this work have been reported at earlier cotton conferences (1994 and 1996) and in the CSD premature senescence grower information leaflet.

We have carried out one season of experiments on plant growth regulators that have not been used commercially in the Australian industry before (Glycinebetaine, Gibberellic acid and PGR TV) and compared these to Pix.