Category Archives: Cotton

Demonstrating Environmental Stewardship

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Dear Tennessee Producer:

We invite you to participate in a study conducted by University of Tennessee Institute of Agriculture researchers along with the Tennessee Department of Agriculture. The purpose of this survey is to demonstrate the progress Tennessee farmers are making towards environmental stewardship.

The survey should take about 10 minutes to complete. Your participation is voluntary. NO personal information or data is collected.

Click the link below to begin the survey:

https://utk.co1.qualtrics.com/jfe/form/SV_dhwdnXtVzUMeEg6

Please contact us if you have any other questions about the survey. Thank you for taking time out of your busy schedule to help us!

Thank you for your time,

Dr. Chris Boyer (cboyer3@utk.edu)

Dr. Aaron Smith (aaron.smith@utk.edu)

Dr. Forbes Walker (frwalker@utk.edu)

UT Institute of Agriculture, The University of Tennessee Knoxville

John McClurkan (john.mcclurkan@TN.gov)

Tennessee Department of Agriculture


2023 Tennessee Cotton Variety Trial Results now available

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The 2023 Tennessee Cotton Variety Trial Results (PB 1742) are now available online.  Included within these results are thirteen large strip trials (CSTs) testing 13 XtendFlex commercial varieties, four large strip trials (CSTs) testing 6 Enlist commercial varieties, and eight small plot trials (OVTs) testing 44 experimental and commercial varieties.

Special thanks to all of the agents and producers who helped generate this data.  Additionally, thanks to the USDA Classing Office in Memphis for assisting with this effort.  If you have any questions on location response or variety placement, please do not hesitate to reach out directly to your county agent.


2023 Soybean OVT Prelim

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Prelim results from the 2023 TN soybean OVT are now available as pdf (2023 Soybean Tables, 2023 Soybean Tables Appendix) and excel files (2023 Soybean Tables, 2023 Soybean Tables Appendix). Seventy-one varieties were evaluated in small plot replicated trials (REC) at 8 sites. In addition to yield, moisture, lodging, maturity, oil, and protein, data were collected on diseases, including frogeye and SDS, at locations where these diseases were present. The final CST data and disease trials are not in the prelim report but will be included in the final version to be posted here and on search.utcrops.com. Varieties that were in the A group in the OVT are listed below.


2023 County Standardized Trials-Soybean Data

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This year’s soybean CST class consist of 61 varieties covering late 3’s to early 5’s maturity groups.  These trials are split by both maturity groups and herbicide tolerance, Late III, Early IV, Late IV, and Early V, and by Xtend and Enlist.  These trials were planted on-farm across the state in 63 county demonstration plots.

If you have questions about UT’s variety testing program, please contact your local county agent.

Thanks to all who contribute to these trials and your support to the program.

Click on the table below to enlarge data in pdf form.

Late III Xtend

Early IV Xtend

Late IV Xtend

Early V Xtend

Enlist


Boll opening before a Halloween freeze

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While we’ve been steadily moving through harvesting our trials, I’ve been paying close attention to the night temperatures forecast for the three day stretch centered on Halloween.  Fortunately, there are only a few acres left that might require any more boll opener; I cannot recall a more productive year harvested in such a short timeframe.  Still, for those trying to prepare their latest planted acres for the picker, the time to make that final application of boll opener is NOW.   In this article, I briefly cover rates and products I would consider for applications going out today (10/25) or tomorrow (10/26).

Continue reading


Multiple-Herbicide Resistant Waterhemp in Tennessee

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Waterhemp that escaped multiple applications of Engenia + Glyphosate

Last year we reported on waterhemp in Montgomery and Macon counties that was resistant to dicamba.  We came to this conclusion from both research we conducted in the fields and the confirmation of those results by greenhouse research. The greenhouse research was conducted at Purdue University by my colleague Dr. Bill Johnson and his graduate student Claudia Bland. Continue reading


EPA Herbicide Strategy Frame Work Will Impact All Pesticide Applications in Tennessee

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In response to losing lawsuits on lack of action on the endangered species, the EPA proposed a draft strategy aimed at guarding federally endangered species against potential negative impacts of herbicide applications. They describe the strategy as a mix of population-level protections for over 900 listed species and designated critical habitats with a range of mitigation measures. What the EPA is proposing to do will eventually impact every pesticide application in Tennessee.

This is a very complicated topic.  I found the two WarAgainstWeeds podcasts helpful in trying to understand the “why, where and how” of EPAs strategy.

If you would like to comment to EPA on this plan (I would urge you to comment!), here is a link: Write a Comment