Recent Updates

When to move on the replant

I planted my first cotton trial this year on April 13th.  That trial protocol specifically requested an early plant date into adverse conditions.  But with the temperatures and general lack of rainfall in the forecast through the second and third weeks of April, we continued planting.  Here on the 14th day of May, my crew has only a few small and large plot trials remaining before we get to our late-planted trial work, slated for the first week in June.  Most fields in the mid-April window have come up to acceptable stands.  Some fields planted closer to the first of May- right in front of what I hope was our one and only blackberry winter for 2026- caught both cool temperatures and rainfall events in excess of 1″.  A few of those fields have been very slow to emerge, and some are moving to replant those fields now. Continue reading


Postemergence Pigweed Control

Palmer amaranth remains one of the most difficult weeds to manage, and when pigweed escapes preemergence control, postemergence decisions can quickly turn into a kitchen sink approach where multiple products are added to the tank. Because postemergence options depend on the crop system and trait technology, we evaluated a wide range of postemergence programs in 2025 to better understand overall control trends. Continue reading


Soybean Replant Decisions 2026

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Soybean replanting decisions are almost always a tough call and a subjective decision.  Unseasonably warm and dry conditions throughout the late winter and up to the present have sent planting progress well above any “average” number I can come up with.  As we wrap up the month of April, let’s take a look at some objective factors that can help inform replant decisions on beans.

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Stewarding Post Herbicide Applications

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We are 4 weeks early for the typical POST herbicide application window. These applications need to be effective and steward well. In fact stewardship of the herbicides used in those applications is critical. Crops injured by off-target herbicides were numerous last year. While many think about either dicamba or 2,4-D for off-target concerns, last year clethodim drift on corn was the most widely reported issue across the state. Continue reading


UT Cotton Scout School (May 20, 2026)

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The UT Cotton Scout School is scheduled for Wednesday, May 20th, at the West Tennessee Research and Education Center (605 Airways Blvd, Jackson). There is no fee, and preregistration is not required. Registration begins at 8:00 AM with the program starting at 8:30. Pesticide points in categories 1, 4, 10 and 12 will be offered and a BBQ lunch will be provided. Content will include classroom and hands-on training with an optional go-to-the-field session after lunch. Topics covered will include cotton development and identification and symptoms of insect pests, plant diseases, and weeds. Contact Sebe Brown (318)-498-1283, sbrow175@utk.edu with questions.


Ryegrass Continues to Persist

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Picture 1. Ryegrass that escaped clethodim+glyphosate competing with emerging soybean

Ryegrass continues to persist in too many fields. Often the ryegrass in these fields has escaped both glyphosate and clethodim (Picture 1).  In fields like this we typically will just have to live with ryegrass over the next 4 weeks as it completes maturity and goes to seed.  Some have asked what can they spray?  Liberty is really the last best option applied on a hot day to help speed up the ryegrass maturity process. Continue reading