For weevil eradication, total plant death is essential. Plant recovery and subsequent fruit production jeopardize the integrity of the program. Cotton is a difficult plant to eliminate, especially after it is well established. Since we have reached the payment deadlines for technology charges and the boll weevil eradication fee, growers with unworkable stands face the question of how to economically destroy the crop. Obviously, during mid-summer, mowing is not a great option because of the potential for recovery.
Aggressive tillage is feasible but undesirable in reduced tillage fields.
Among herbicide choices, paraquat or paraquat tank mixtures are the most effective means of eliminating cotton. We have observed some excellent results with paraquat treatments in young stands. Paraquat is not a perfect alternative. As a harvest aid, paraquat often does not fully kill mature cotton. Thorough coverage of foliage and stems is absolutely essential.