Category Archives: Corn

Armyworms in Wheat etc.

Author: Scott Stewart, IPM Extension Specialist Comments Off on Armyworms in Wheat etc.

Be alert for true armyworm infestations in wheat, and these larvae may also migrate into soybean, corn or other crops from adjacent wheat fields of grassy ditch banks. They might even be on weedy grasses or wheat or other grasses used in cover crops, and this could cause a problem if Continue reading

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Scout Corn for Cutworms

Author: Scott Stewart, IPM Extension Specialist Comments Off on Scout Corn for Cutworms
Black cutworm and cut plant

Much of our corn took a long while to emerge, and there has been opportunity for cutworms to infest fields since planting. Hence, make sure to scout for cutworm injury while checking stands. UT recommends treating for cutworms in corn when 5% or more of plants are injured or when you find 2 or more larvae per 100 plants. Synthetic pyrethroids are generally used to control infestations. Recommended insecticides and rates are listed here.

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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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Destroying a Poor Stand of Corn and Replanting Back to Corn

Author: Larry Steckel, Extension Weed Specialist Comments Off on Destroying a Poor Stand of Corn and Replanting Back to Corn

A number of questions have come in over the past several days on how best to destroy a partial stand of corn and replant back to corn. Apparently there will be several corn fields that will have to be replanted.  Continue reading

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Corn Nitrogen and Wet Soils

Author: Angela McClure, Extension Corn and Soybean Specialist Comments Off on Corn Nitrogen and Wet Soils

With continued wet weather, growers are sharing concerns about how rains may have impacted pre-plant or at-plant nitrogen in fields designated for corn. Continue reading

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