Composition for plant growth regulation

Abstract

A composition comprising a mixture of a N-heterocyclic monoamide such as e.g. N-methyl pyrrolidone or a polymer thereof, and a 2-halo-ethylphosphonic acid useful for the treatment of plants including trees, shrubs, field crops, grasses and ornamentals to achieve enhanced plant growth regulatory effects. Of particular interest are the treatments of apple trees to promote fruit redening; treatment of cherry, hazel and walnut trees to advance fruit loosening; treatment of cucumbers to induce stunting and to promote female sex expression; treatment of tobacco to hasten maturation and to inhibit tillering and treatment of cotton plants prior to harvesting to provide defoliation synchronized with increased, boll opening in preparation for harvest of quality cotton in high yields.

Dependencies are inferred from the claim text.