With Palmer amaranth becoming more herbicide-resistant, producers are pushing to find new ways to control it, such as using a rye cover crop to suppress it.
Herbicide resistance continues to be a growing concern among no-tillers. Not only are more weeds developing resistance, but some herbicide-resistant weeds, such as Palmer amaranth and waterhemp, are also very difficult to control if not caught early.
Farmers have a variety of tools at their disposal for managing weed populations in their fields. However, when it comes to pigweed, the options available can be frustratingly limited.
In this video from University of Arkansas Extension, grower Adam Chappell, Cotton Plant, AR, who has been using cover crops for 11 years, talks about using covers to control Palmer amaranth, why he covers every acre of his farm with cover crops, his experiences using cereal rye, and more.
Researchers found that a grass and legume cover crop combination produced the most biomass and reduced emergence of glyphosate-resistant Palmer amaranth by half.
This devastating pigweed is starting to make its way into the Corn Belt. Here’s what no-tillers need to know to protect their crops from this voracious pest.
There’s just nothing good that can be said about Palmer amaranth. It’s capable of wiping out 78% of soybean yields and a whopping 91% of corn yields on a given farm. Studies have shown populations are resistant to glyphosate, atrazine and HPPD-inhibiting herbicides.
The National No-Tillage Conference returns January 7-10, 2025!Build and refine your no-till system with dozens of new ideas and connections at the 33rd Annual National No-Tillage Conference in Louisville, Ky. Jan. 7-10, 2025. Experience an energizing 4-day agenda featuring inspiring general session speakers, expert-led No-Till Classrooms and collaborative No-Till Roundtables. Plus, Certified Crop Adviser credits will be offered.
Last week we had boots on the ground at the Big Soil Health Event in Cedar Falls, Iowa where agronomist David Kleinschmidt emphasized the importance of considering Carbon to Nitrogen ratios of cover crops and residues.