S10 E11 - Herbicide Resistance Update with Dr. Norsworthy
War Against Weeds
Dr. Jason Norsworthy from the University of Arkansas sits down with Alyssa and Sarah to discuss the United Soybean Board’s weed management project. This project involves screening for resistance to our most used herbicides in our most problematic pigweed species.
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S10 E10 - Redvine
War Against Weeds
This week Alyssa and Joe chat with Dr. Jason Bond (Mississippi State University) all about redvine! This week’s episode is also a crossover episode with The Mississippi Crop situation Podcast, so check them out here! https://extension.msstate.edu/shows/mississippi-crop-situation
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S10 E9 - Group 5 Herbicides
War Against Weeds
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:...
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S10 E8 - Herbicide Premixtures
War Against Weeds
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
War Against Weeds
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
War Against Weeds
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
War Against Weeds
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
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S10 E4 - Canola
War Against Weeds
This week Sarah and Joe talk about canola production with Drs. Breanne Tidemann and Mike Cowbrough. They discuss the origins of canola, winter vs spring cultivars, and the challenges associated with growing canola.
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S10 E3 - Cover Crop Contamination with the Office of Indiana State Chemist
War Against Weeds
This week Alyssa and Joe chat with Office of the Indiana State Chemist Jessica McVay and Scottie Pouliot about cover crop contamination in seed lots, and all the work they do behind the scenes.
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S10 E2 - Volunteer Cereals and Green Bridges: A Pathology Perspective
War Against Weeds
This week Sarah and Joe chat with Drs. Kelsey Andersen Onofre (Kansas State University) and Andrew Friskop (North Dakota State University) about volunteer cereals and green bridges, specifically covering wheat streak mosaic virus. You can find both of our guests here on X: @KSUWheatDisease and @NDSUcerealpath
info_outlineWelcome back to the War Against Weeds Podcast! This week we are joined by guests Kevin Bradley (University of Missouri) and Dwight Lingenfelter (Penn State University) to discuss weed management in pasture systems. They cover the different weeds found in pastures, non-chemical methods, and the importance of fertility.
Kevin’s Links: https://weedscience.missouri.edu/
https://www.facebook.com/weedscience.missouri
X: @ShowMeWeeds
Dwight’s Links: General Weed ID references:
- Weeds of the Northeast (2nd ed. 2023) - great reference
- >500 weed species with images and descriptions
- Newcomb’s Wildflower Guide (or similar others)
Toxic plant databases and info:
- University of Wisconsin Poisonous Plants of Concern to Wisconsin’s Livestock
- Canadian Poisonous Plants Information System
- Colorado Guide to Poisonous Plants
- Cornell Plants Poisonous to Livestock database
- University of Illinois School of Vet Medicine Poisonous Plants database
- USDA Poisonous Plant Research Laboratory (Logan, Utah) and ARS Bulletin 415 Plants Poisonous to Livestock in the Western USA