Category Archives: Weeds

Managing Large Palmer Amaranth in Large Corn

Author: Larry Steckel, Extension Weed Specialist Comments Off on Managing Large Palmer Amaranth in Large Corn

Judging by our research here as well as field visits and  phone calls from folks walking corn fields it is very apparent that pretty much any PRE applied herbicide in corn has given out. Even some of the PRE applied herbicides that traditionally have provided consistently long weed control like Acuron or Bicep have given out about 25 days after application.  In a few fields I visited today clearly no PRE was applied to the corn and Palmer amaranth jungles were very evident in the fields. After visiting these fields I will take a PRE that has given out any day. Continue reading

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Destroying a Poor Corn Stand to be Planted Back to Soybean or Cotton

Author: Larry Steckel, Extension Weed Specialist Comments Off on Destroying a Poor Corn Stand to be Planted Back to Soybean or Cotton

Clearly the most frequent call the last few days of April and the first half of May has concerned corn replant.  All through early May the calls have been on how to destroy a partial stand of corn and replant back to corn.  In just the last few days the question has been on how to remove a poor stand of corn and then plant back to soybeans or cotton. Continue reading

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Scout Cotton and Soybean Fields Planted Last Week for Palmer Amaranth

Author: Larry Steckel, Extension Weed Specialist Comments Off on Scout Cotton and Soybean Fields Planted Last Week for Palmer Amaranth

I have gotten numerous reports of Palmer amaranth becoming established in fields where PRE applied herbicides were not activated by timely rainfall. Indeed I have seen some in my research as well. There were many acres of cotton and soybean planted May 7 to May 14. The rain that was in the forecast for last week was a no-show.  The result is many of the PRE applied herbicides sprayed on all those cotton and soybean acres was not activated.  This has led to a large flush of Palmer amaranth to emerge with the cotton and soybean in a good number of fields in Tennessee. Continue reading

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Enlist Stewardship Critical in 2018

Author: Larry Steckel, Extension Weed Specialist Comments Off on Enlist Stewardship Critical in 2018

There was about 20,000 acres of Enlist cotton planted in Tennessee in 2017.  Visiting with Extension agents, retailers and farmers this spring it is clear that there will be many fold more acres of Enlist cotton planted in 2018 compared to 2017.  Continue reading

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Applicators Must Have a Copy of 24c Label for Engenia or XtendiMax

Author: Larry Steckel, Extension Weed Specialist Comments Off on Applicators Must Have a Copy of 24c Label for Engenia or XtendiMax

It is my understanding that applicators when they apply Engenia or XtendiMax must have on hand a copy of the 24c label for those herbicides.  A hard copy is preferred. Baring that a downloaded copy on to your Ipad, tablet or phone would be better than nothing.  Trying to down load a copy on to your phone as the TDA inspector pulls into your field is not recommended. The links so you can down load, print a copy and read before you go spray is:

Engenia  http://www.cdms.net/ldat/ldDG8026.pdf

XtendiMaxTN xtendimax 24c label Continue reading

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First Palmer Amaranth Just Emerging

Author: Larry Steckel, Extension Weed Specialist Comments Off on First Palmer Amaranth Just Emerging
First Palmer Emergence April 30, 2018

Palmer amaranth started emerging in West Tennessee just over the past few days.  The first pigweed I noticed emerging was on April 30. This late emergence is very different from past springs. Continue reading

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Ryegrass Questions and Management

Author: Larry Steckel, Extension Weed Specialist Comments Off on Ryegrass Questions and Management
Ryegrass escaping glyphosate plus dicamba burndown

Clearly, one weed many have had trouble with in 2018 is ryegrass.  Questions began months ago and continue today.  Questions have ranged from tactics to burn ryegrass down before planting to how to control it in a standing corn crop. What has become abundantly clear is that glyphosate is no longer an effective burn down option for ryegrass.  Continue reading

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Easing off the clutch: 2018 cotton planting

Author: Tyson Raper, Cotton & Small Grains Specialist Comments Off on Easing off the clutch: 2018 cotton planting

I’ve visited with several over the past few days who either started planting yesterday (4/30), who plan to begin today (5/1), or who will be planting by tomorrow (5/2).  While we have a few very early planting-date trials established here in Jackson, none of our large-plot trials have been planted and none of our small-plot work requiring normal planting dates have been planted either.  That will change for my program today (5/1). Continue reading

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