Alyssa Essman and Sarah Lancaster sit down with Dr. Aaron Hager (University of Illinois) and Ryan Henry (UPL) to discuss Group 5 herbicides. They cover the historical use and mechanisms of these herbicides, as well as degradation, metribuzin rates, and new herbicides to the market. Paper mentioned in the episode: Optimizing metribuzin rates for herbicide-resistant Amaranthus weed control in soybean link: https://www.cambridge.org/core/journals/weed-technology/article/optimizing-metribuzin-rates-for-herbicideresistant-amaranthus-weed-control-in-soybean/ECF728739388A3DB5BA2290B1105A385
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S10 E8 - Herbicide Premixtures
Joe & Sarah sit down with Scott Cully and Dean Grossnickle to discuss herbicide premixtures. Scott, a senior field research biology expert, highlights his role in developing products like Acuron and Storen. Dean, a technical development lead, explains his commercial perspective. They detail the development process, including formulation challenges and the importance of proper adjuvant selection. They emphasize the need for accurate application to avoid issues and the benefits of pre-mixtures for ease of use and consistent results.
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S10 E7 - The HERMON Project
Sarah & Joe sit down with Dr. Eric Patterson from Michigan State University to chat about the The HERMON (Herbicide Resistance Monitoring Network) project. This project aims to create a network of researchers to develop and share new resistance tests and management strategies. The project includes 10 states and focuses on key herbicides like glyphosate, PPO inhibitors, and dicamba. Link mentioned in the episode: https://www.seedworld.com/us/2025/06/19/a-unified-front-on-weed-resistance/
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S10 E6 - Cytochrome P450s with Dr. Todd Gaines
This week Sarah and Alyssa chat with Dr. Todd Gaines from Colorado State University. They discuss the role of cytochrome P450 enzymes in herbicide metabolism and resistance. Dr. Gaines mentions ongoing research to understand the regulation of these enzymes and the potential for using gene editing to combat resistance. They also touched on the impact of stress on P450 activity and the development of new herbicides. Here is the article mentioned in the episode: https://onlinelibrary.wiley.com/doi/full/10.1002/pld3.70102
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S10 E5 - Wheat Gene Flow
This week on the War Against Weeds Podcast, Sarah and Alyssa chat with Dr. Allan Fritz, a professor in wheat breeding at Kansas State University! They discuss potential outcrossing between wheat and its wild relatives, particularly jointed goatgrass. The conversation touches on the potential for transgenic wheat and the regulatory challenges posed by consumer acceptance and market concerns. Link from the episode: chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://wsweedscience.org/wp-content/uploads/OP5Carol.pdf
Sarah, Joe, and Alyssa are three Extension weed scientists on a mission to help their audience understand what it takes for farmers to fight the war against weeds.
Funding for the podcast is provided by the North Central IPM Center, on of four regional centers funded by the United States Department of Agriculture (USDA) National Institute of Food and Agriculture (NIFA) to promote and facilitate the adoption of effective integrated pest management (IPM) strategies.
You can also find our episodes at https://cropprotectionnetwork.org/.
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