Category Archives: Weeds

Cover Crop Considerations for This Fall

Author: Garret Montgomery 1 Comment

A recent survey in Tennessee showed that 22% or our row crop acres were planted after a cover crop. In light of the PPO resistant Palmer amaranth we believe this number should go up as a good cover crop may help improve control of Palmer amaranth in an integrated system with herbicides. It is time to be making decisions about the cover crops you will be planting this fall. Continue reading

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Mississippi River Flooding July 1 2015

August-Planted Soybean Weed Control Considerations

Author: Larry Steckel, Extension Weed Specialist 4 Comments

There was about 100,000 acres of crop that the Mississippi claimed when it went out of its banks in July. About 50,000 acres of that is being replanted back to soybeans. Most of that 50,000 acres is being planted this week (8/5). Some questions have come in on how to approach weed control in these ultra-late planted soybean.  Continue reading

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Identification of PPO-Resistant Palmer Amaranth

Author: Larry Steckel, Extension Weed Specialist Comments Off

Identification of PPO-resistant Palmer amaranth has been a concern for many over the past couple of weeks. I am sure many of the Palmer amaranth escapes in West Tennessee are not due to resistance.  However some definitely are.  We are up to 4 counties now where the Palmer amaranth with the PPO-resistant gene has been identified. So how can one tell if Palmer amaranth that escapes FlexStar, Ultra Blazer or Cobra is due to resistance or another issue? Continue reading

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Cotton Progress/Heat Unit Accumulation for 2015

Author: Tyson Raper, Cotton & Small Grains Specialist Comments Off

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A rough start for many of TN’s cotton acres has turned into a decent summer for the majority of our acreage.  This is very evident when looking at accumulated heat units noted at the West Tennessee Research and Education Center in Jackson, TN.  As you can see in the below graph, we are quite a bit ahead of the last two years on accumulated heat units.  Warm temperatures in mid/late June and timely rains have Continue reading

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