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LOGO: Journal of Cotton Science


Wild Okra Control with Bromoxynil and Pyrithiobac

Authors: Eric P. Prostko, Enrique Rosales-Robles, and James M. Chandler
Pages: 100-103
Weed Science

Wild okra [Abelmoschus esculentus (L.) Moench], a summer annual, is a potentially serious weed in cotton (Gosssypium hirsutum L.) fields of the southeastern United States. This study was conducted in 1995 and 1996 to evaluate wild okra control by bromoxynil (3,5- dibromo-4-hydroxybenzonitrile) and pyrithiobac {2-chloro-6-[(4,6-dimethoxy-2-pyrimidinyl)thio]benzoic acid} applied postemergence. Bromoxynil at 0.4 kg a.i. ha-1 controlled four-leaf wild okra 88 to 100% 25 days after treatment and reduced biomass 87 to 100%. Bromoxynil at 0.6 to 1.1 kg a.i. ha-1 controlled wild okra 99 to 100% and reduced biomass similarly. Pyrithiobac applied postemergence at rates up to 0.14 kg a.i. ha-1 controlled wild okra less than 70%.