All posts by Larry Steckel, Extension Weed Specialist

Cover Crop Considerations for This Fall

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


Identification of PPO-Resistant Palmer Amaranth

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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