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War Against Weeds

Sarah Lancaster
Weed Management
Herbicide Resistance
Palmer Amaranth
Herbicides
Integrated Pest Management
Weed Control
Waterhemp
Agricultural Practices
Crop Rotation
Soybeans
Bur Cucumber
Agriculture
Atrazine
Herbicide Resistance Management
Mesonets
Cover Crops
Weed Resistance
Johnson Grass
Specialty Crops
Glyphosate

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. This podcast is funded through the North Central Integrated Pest Management Center through support by the Crop Protection and Pest Management Program, project award no. 2022-70006-38001, from the U.S. Department of Agriculture's Nationa... more

PublishesWeeklyEpisodes182Founded5 years ago
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Artwork for War Against Weeds

Latest Episodes

In the last episode of season 11, Sarah and Alyssa sit down with Dr. James Leary to explore the innovative world of herbicide ballistic technology. James shares how his work in Hawaii led to the development of herbicide-filled projectiles designed to... more

In this episode of War Against Weeds, the hosts sit down with weed science experts Dr. Peter Dotray (Texas Tech University) and Dr. Stanley Culpepper (University of Georgia) to explore the unique challenges of growing cotton across different regions ... more

This week Joe Ikley and Sarah Ganske are joined by Dr. Tom Mueller (University of Tennessee) to discuss sprayer hose cleanout and herbicide residue risks. The conversation focuses on how hose materials, aging, and system design affect herbicide reten... more

In this episode of the War Against Weeds podcast, Alyssa Essman and Sarah Lancaster Ganske are joined by Purdue Extension weed scientist Dr. Tommy Butts for a deep dive into spray nozzles, droplet size, and deposition. The conversation covers how noz... more

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Recent Guests

James Leary
Lead scientist in the Lake and River Ecosystems section
South Florida Water Management District
Episode: S11 E16 - Herbicide Ballistic Technology: Innovation in Invasive Plant Management
Peter Dotray
Cotton weed scientist; Texas Tech University affiliate
Texas Tech University
Episode: S11 E15 - Two States, One Challenge: The War on Weeds in Cotton
Stanley Culpepper
Cotton weed scientist; University of Georgia affiliate
University of Georgia
Episode: S11 E15 - Two States, One Challenge: The War on Weeds in Cotton
Tom Mueller
Professor with the University of Tennessee; primary research in environmental fate of herbicides and weed resistance
University of Tennessee
Episode: S11 E14 - Hidden Residues: Sprayer Hoses and Herbicide Carryover
Tommy Butts
Extension weed scientist
Purdue University
Episode: S11 E13 - Nozzle Know-How: Balancing Coverage, Deposition, and Drift for Effective Weed Control
Katie Dentzman
Assistant Professor of Rural Sociology
Iowa State University
Episode: S11 E12 - Beyond the Silver Bullet: The Social Side of Weed Management
Hudson Takano
Lead generation program leader at Corteva Agriscience; repeat guest
Corteva Agriscience
Episode: S11 E11 - HRAC 2026 Update: Changes to the Herbicide Modes of Action Poster
Ingo Meiners
R&D group leader, BASF Agricultural Solutions
BASF
Episode: S11 E10 - PPO Resistant Kochia: From Field Failures to the Lab
Aimone Porri
Plant geneticist, principal scientist/lab leader
BASF
Episode: S11 E10 - PPO Resistant Kochia: From Field Failures to the Lab

Hosts

Alyssa Essman
Host of War Against Weeds; Weed Science Extension Specialist
Sarah Lancaster Gansky
Co-host; Extension Weed Management Specialist
Joe Ikley
Host of War Against Weeds; Weed Scientist

Reviews

4.8 out of 5 stars from 39 ratings
  • Adam L.

    Most of the episodes are an excellent source of information regarding weed control.

    Thank you guys!!💐💐

    Apple Podcasts
    5
    Ahbzl
    Canada2 years ago

Listeners Say

Key themes from listener reviews, highlighting what works and what could be improved about the show.

Great summaries of emerging weed science and management options.
Most episodes are an excellent source of information on weed control.
Strong technical content with actionable takeaways for growers.
Thanks for the practical, research-based insights.
Educational and evidence-based discussions that are useful for extension and farming communities.

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Talking Points

Recent interactions between the hosts and their guests.

S11 E11 - HRAC 2026 Update: Changes to the Herbicide Modes of Action Poster
Q: What happens to compounds removed from the poster?
Removed compounds stay in the HRAC master spreadsheet and the online lookup tools; they are not erased from the database and may reappear in future updates if warranted by new data or market conditions.
S11 E11 - HRAC 2026 Update: Changes to the Herbicide Modes of Action Poster
Q: How are additions to the poster decided and what happens when a new compound is added?
Decisions rely on the evidence strength and proximity to market; approved compounds are added to the poster and simultaneously linked to the master list and online tools, with the poster updated every two years while the online resources update in real time.
S11 E11 - HRAC 2026 Update: Changes to the Herbicide Modes of Action Poster
Q: Why is motive action classification important?
Because it serves as a guide for resistance management on rotating and mixing different modes of action for weed control, providing a framework aligned with herbicide labels to reduce resistance risk.
S11 E11 - HRAC 2026 Update: Changes to the Herbicide Modes of Action Poster
Q: What kind of information has to be generated in order to get a herbicide listed on HRAC materials?
Companies provide data on chemical structure, common name, molecular data, metabolic pathways, and specific mechanism or target, supported by mutagenesis, biochemical assays, and cross-resistance data, with peer-reviewed publications preferred to substantiate the mode of action, and additional information if published data are insufficient.
S11 E15 - Two States, One Challenge: The War on Weeds in Cotton
Q: What do you think about the split in Xtend versus Enlist versus other trait packages in your cotton areas?
In the area discussed, Xtend is predominant, with pockets of Enlist; label changes and regional adoption influence which program growers select, always balancing yield performance and tool availability.

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Frequently Asked Questions About War Against Weeds

What is War Against Weeds about and what kind of topics does it cover?

A science-forward, practitioner-focused show that interviews weed scientists, extension agents, and industry researchers to explore real-world weed management, resistance mechanisms, and field-ready strategies. Episodes frequently pair field observations with lab analyses, covering topics from herbicide resistance and novel technologies to ecological approaches and climate-influenced weed dynamics. A notable strength is its heavy emphasis on practical implications for growers, extension personnel, and ag tech practitioners, often featuring cross-institution collaborations and region-specific management examples that translate research into action.

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Which podcasts are similar to War Against Weeds?

These podcasts share a similar audience with War Against Weeds:

1. Ag PhD Radio on SiriusXM 147
2. AgriTalk
3. The Business of Agriculture Podcast
4. AgriTalk PM
5. Agronomists Happy Hour

How many episodes of War Against Weeds are there?

War Against Weeds launched 5 years ago and published 182 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

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What guests have appeared on War Against Weeds?

Recent guests on War Against Weeds include:

1. James Leary
2. Peter Dotray
3. Stanley Culpepper
4. Tom Mueller
5. Tommy Butts
6. Katie Dentzman
7. Hudson Takano
8. Ingo Meiners

To view more recent guests and their details, simply upgrade your Rephonic account. You'll also get access to a typical guest profile to help you decide if the show is worth pitching.

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