Cotton Links


‘Significant’ Tankmix Savings
Can Vary

Early to mid-season, cotton farmers often use tankmixes to broaden the control spectrum of an insecticide or herbicide or to target a specific pest.

In our July Web Poll, we asked our readers if they had noticed a significant savings by using tankmixes at that point in the season. In hindsight, we probably should have left out the word “significant” or at least provided some parameters of what might be deemed significant. Obviously, what constitutes a “significant savings” can vary from one farming operation to another one.

After the votes were tallied, 31 percent of the respondents say they did notice a significant savings, while 69 percent say they did not.

Although those who voted “Yes” are in the minority for this poll, some did offer the following comments on the subject. We always appreciate the feedback and encourage everyone who votes to share their thoughts.

• “Tankmixes are a standard now here in the Tennessee Valley, especially in the case of over-the-top applications of herbicides. Since glyphosate only kills grass, we must add something to kill everything else. Makes you wonder why technology costs so much just to kill grass.”

• “In southeast Alabama (near Dothan), we have been using tankmixes for years. It used to be for convenience, but now it is necessity.”

• “It only makes sense that by tank-mixing compatible materials you save trips across the field. Until the Democrats let us drill, you need to save fuel any way you can.”

Although the July Web Poll was based on early to mid-season use of tankmixes, as we move toward the end of the season, tankmixes generally come into play again in the form of defoliation and harvest aid combos.

On the subject of end-of-the-season tankmix combinations and additives, the University of Georgia offers the following observations:

“Tankmix combinations of different harvest aids can be used to achieve multiple objectives. For example, the active ingredient ethephon can be used to accelerate boll opening and defoliation when used in combination with other materials.

“Mixtures that contain the active ingredient thidiazuron can be used to inhibit regrowth and provide defoliation. Weed desiccation may also be necessary. Therefore, in this situation, combinations using the active ingredients dimethipin, paraquat, carfentrazone, pyraflufen ethyl or glyphosate can be used.

“Unless specified by the harvest-aid label, surfactants, oils, desiccants and other additives are not routinely necessary. Under hard to defoliate conditions, these materials may increase the activity of harvest aids. Use additives with caution when temperatures are high since they may increase the occurrence of desiccation.

“Under normal conditions, desiccants (Example: high rates of paraquat) should not be applied with other harvest aids. With cool weather or vigorously growing cotton, a preconditioning treatment may help the defoliation process. Alternatively, moderate rates of paraquat (in excess of eight oz/A) may help under these conditions. When mixtures of defoliants and desiccants are applied, all bolls should be fully mature, preferably open.”

In this month’s Web Poll, we are asking our readers what type of equipment or tools is at the top of their wish list for next year. Is it a new tractor, harvest equipment, irrigation equipment, spray equipment or, perhaps, precision ag tools?

Cast your vote and post your thoughts in the Web Poll comments section. To participate, go online at www.cottonfarming.com. September results and respondents’ comments will be reported in the November issue of Cotton Farming.

Web Poll Results

In July, we asked: So far this season, have you noticed a significant savings by using tankmixes?

  • Yes — 31 %
  • No — 69 %

September Web Poll Question

What would be your first choice of equipment/tools to invest in next year? Please explain your answer in the comments section.

(1) Tractor

(2) Harvest equipment

(3) Irrigation equipment

(4) Spray equipment

(5) Precision ag tools

Register your vote at www.cottonfarming.com

Return To Top