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Cotton Defoliation – Camp Hand

We will start off cool early in the week and get back into highs near 90 by Friday. Rates need to be adjusted accordingly. At this point, with as cool as it will be through Wednesday, I’m comfortable using Ginstar (thidiazuron + diuron). Generally I like to hang in the 6.4 to 8 oz/acre range, and more thidiazuron can be added if there is high potential for regrowth or there is a lot of regrowth present at the time of defoliation. Remember, 8 oz/acre of Ginstar has 2 oz/acre of thidiazuron, so add more if needed.

So, recipe for the week:

3-way – 4 oz Dropp + 10 oz Folex (would think about 12 oz Monday/Tuesday) + 42 oz Prep

6.4 to 8 oz Ginstar + 42 oz Prep

I’ve gotten a couple of calls about the higher rate of Dropp than usual. I am recommending this because in many cases I am seeing regrowth and that is the best chemistry to kill regrowth and the only one that prevents regrowth. If regrowth is severe, we could potentially increase that rate to 6.4 oz, but I imagine those situations are rare. As for the maxxed out rate of Prep, I imagine it’s hard to find a grower not using that from the jump, so that’s why it is so high.

Late Season Pecan Irrigation – Lenny Wells

The forecast looks pretty much the same for at least the next week. Even though the kernels have filled and the crop is about made, it is vitally important with the crop load on most trees out there to continue running irrigation until you are 5-7 days away from shaking the tree in order to ensure normal shuck split and avoid problems.

I have seen some shuck decline already in a few orchards. Though our temperatures are expected to be no higher than the mid-high 80’s over the next week, conditions are dry enough to lead to delays in shuck split and shuck decline with no irrigation. Shuck decline results from tree stress primarily related to overloaded trees and dry soil conditions after kernel filling is complete. Fungal organisms that cause anthracnose jump onto these nuts after the damage is done.

If soils remain dry and we get some humidity, with temperatures warming up into the 90’s we could also begin to see some sprouting and embryo rot. By continuing to irrigate you promote shuck split and minimize this problem if conditions do arrive. Adequate water is required for the shuck dehiscence process to take place properly. Continue irrigating at 50-60% of full capacity until you are a week or so away form shaking trees for harvest.

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