Cotton Defoliation Update – Dr. Camp Hand
This week looks pretty clear, which is a good thing for growers looking to defoliate. Sunshine helps the defoliants do their job.
Main thing I’m looking at this week is temperature. Looks like temps will stay in the 80s across the state this week, and in spots will go below 80 over the weekend. The “recipe” for this week will look very similar to last week until Friday. 3.2 oz/acre Dropp, 10 oz Folex, 32-42 oz/acre of Prep. Dropp rates should be increased in situations where there is already a significant amount of regrowth, or where regrowth potential is high. Additionally, if there is no regrowth, and low potential for regrowth, dropp rates can be reduced or it can be pulled from the tank. In cases where dropp is not in the tank-mix, I would increase Folex/PPO rates to get a better kill in the top of the plant.
By the time we get to Friday, I’d be thinking hard about having 12 oz/acre of Folex in the tank, 42 oz/acre of Prep, and Dropp in the tank using the criteria outlined previously. Additionally, I would think hard about using a Ginstar + Prep mix as opposed to the “three-way” mix I have outlined above. I’d be around 6.4-8 oz/acre of Ginstar in combination with 32-42 oz/acre of prep. I like an 8 oz/acre rate, but that is a little high for some folks’ taste. When using Ginstar, more dropp may need to be added to the tank if regrowth potential is high. As a reference, in 8 oz of Ginstar, there is only 1 oz of Dropp.
Peanut Update
Peanut Maturity Checks – Lenox Peanut Tuesday and Friday Mornings. Other days at Cook Extension Office.
