A general rule of thumb is to cease at or very soon after first open boll. Available soil moisture, rainfall and temperature expectations, and boll rot potential should be factored into the decision.
FAQ #26545
Have a question? Try asking one of our Experts
When should irrigation be terminated?
Have a specific question? Try asking one of our Experts
Unlike most other resources on the web, we have experts from Universities around the country ready to answer your questions.