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In this episode of War Against Weeds, hosts Sarah Ganske and Alyssa Essman are joined by Purdue University weed scientist Dr. Bryan Young and Bayer Crop Science technical product lead Dr. Kati Price to discuss diflufenican (Convintro®), a new (to the US) Group 12 residual herbicide for corn and soybean production. They explore how this herbicide fits into resistance management programs, its strengths and limitations for controlling waterhemp and Palmer amaranth, and what growers can expect regarding crop response, tank-mix partners, and stewardship. The conversation also covers practical recommendations for integrating this new tool into existing weed management programs. Convintro Website:  https://www.cropscience.bayer.us/brands/crop-protection/convintro?utm_campaign=evg+marcomm+convintro+google+search-paid+nonbrand+&utm_medium=search-paid&utm_source=google&utm_content=brandad+nonbrand+text+multistate+cornsoy+herbicides+gt2ct4a28&gclsrc=aw.ds&gad_source=1&gad_campaignid=23386064829&gbraid=0AAAAAofgd2gOZugKXyYYTZ4xt0TRZaxpp&gclid=CjwKCAjwrbfWBhAeEiwAc2e6PjWQ6O-bQRhTeKIEXdPPy0YuMCRawrkX8K3pUwDqy3-vnWcjvSfRTRoCyX8QAvD_BwE Transcript (.docx): https://app.box.com/s/f91atndbmc32tbff9tsv296hp6hg2awf

In this episode of War Against Weeds, Joe Ikley and Tommy Butts sit down with weed scientists Marcelo Moretti (Oregon State University) and Ryan Hill (University of California) to explore the challenge of sucker management in perennial crops such as hazelnuts, olives, prunes, and grapes. The discussion covers how suckers impact yield, fruit quality, disease management, and weed control programs, along with current strategies including chemical pruning, mechanical removal, plant growth regulators, and emerging electrical control technologies. Links from guests: https://www.sacvalleyorchards.com/ https://wric.ucdavis.edu/blog https://smallgrains.wsu.edu/weeders-of-the-west/   Transcript (.docx): https://app.box.com/s/00iawo2fg3tmtojffxh87cxn027u006y

Marestail has been one of the most troublesome weeds in agronomic crops for more than two decades, and growers are still searching for effective ways to stay ahead of it. In this episode, Dwight Lingenfelter of Penn State joins us to discuss marestail biology, resistance, cover crops, tillage, and the management strategies that can help reduce its impact across soybean, corn, and small grain systems. Sarah mentions a previous episode where we cover marestail research, and that episode is S1 E9 and that can be found here! S1 E9: Marestail/Horseweed Dispersal and Control https://waragainstweeds.libsyn.com/marestailhorseweed-dispersal-and-control Transcript (.docx):  https://app.box.com/s/nb709yzr4ds41latv9w9hqwedh6tv1w8

In this episode of War Against Weeds, Joe Ikley and Alyssa Essman welcome Rodrigo Werle to share key insights from eight years of multi-state research on cover crops and weed management. The discussion explores why cereal rye has emerged as the top cover crop for suppressing troublesome weeds like waterhemp and Palmer amaranth, as well as the biomass needed to maximize weed control benefits. They also cover how cover crops fit into an integrated weed management strategy alongside residual herbicides, and what new research could mean for the future of resistance management and sustainable crop production.   Resources from our guest: https://badgercropnetwork.com/ https://x.com/WiscWeeds?s=20     Transcript (.docx): https://app.box.com/s/wdpfsjr6di1436t7h014k81t17sgxrs2

In this episode of War Against Weeds, Tommy Butts is joined by Joe Ikley (North Dakota State University) and Tom Barber (University of Arkansas) to discuss how fall-applied herbicides fit into weed management programs across very different environments. The conversation covers glyphosate-resistant Italian ryegrass, kochia, wild oat, and waterhemp, with a focus on herbicide timing, residual activity, and product selection. They also discuss research findings, farmer adoption of fall programs, and explore how cover crops, crop rotation, and weather impact herbicide performance.   Transcript: https://app.box.com/s/odey5jljte1aewvjyrflj1f30365le6y

On our first episode of season 12, Tommy and Alyssa are joined by Dr. Mark VanGessel (University of Delaware) to discuss the effectiveness of late-season herbicide applications on weeds like waterhemp, Palmer amaranth, and burcucumber. They cover weed seed production, harvest concerns, herbicide limitations, resistance management, and the economic realities of spraying large weeds late in the season. Links suggested by our guest: https://www.udel.edu/academics/colleges/canr/cooperative-extension/sustainable-production/weed-science/ https://growiwm.org/ Transcript: https://app.box.com/s/1hejf8whz58xlp2ne0ip0r7hvjne8bgy

Welcome back to season 12 of the War Against Weeds Podcast! We are so excited to annouce a NEW host this season! Join us as we welcome Dr. Tommy Butts, a weed scientist at Purdue University. We also cover a bit of our summers, and what we are looking forward to this season! Transcript (.docx): https://app.box.com/s/nbcyq5lp8bvzln43dw25hie1v6l6jqa0

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 target invasive plants in hard-to-reach terrain. The conversation dives into the science, logistics, and surprising practicality of "shooting weeds," and how creative thinking can transform invasive species management and conservation efforts.   Here are some resources our guest shared! https://www.youtube.com/watch?v=988i6SQKSzY https://www.youtube.com/watch?v=tWYR6C3T3NQ   Transcript: PDF: https://app.box.com/s/a2cicz0jpo74m02otm8bjhkmcngjjns7 DOC: https://app.box.com/s/ekzn3mq1jwi0hlq449qz5a49ip7ilmes

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 of the U.S. From starting clean at planting to the critical role of timely herbicide applications and overlapping residuals, they break down what it takes to manage weeds in this slow-growing, high-maintenance crop.   Episode Trancript PDF: https://app.box.com/s/up693ucumuokzjoz6su63t43rb72n6io DOC: https://app.box.com/s/2ee7afg6rki1qegpowitnncgs69v1l7e

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 retention, with research insights comparing dicamba and 2,4-D cleanout challenges. They also share practical recommendations for applicators, including agitation practices, downtime risks, and when hose replacement may be necessary to avoid crop injury.   Link: https://utcrops.com/   Transcripts:  PDF: https://app.box.com/s/4esrl1zv0dd0za3uojxah0jpwvqdy90i DOC: https://app.box.com/s/frnfuvcvn5t7h6kg11v4cch4jmeigsny

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 nozzle selection influences coverage, drift, deposition, and weed control, with practical recommendations for ground applications, pulse sprayers, and managing risk in real-world conditions.    Epsisode Transcript PDF: https://app.box.com/s/rci0uzr4ww772196tdfeia0vvrdidzas DOC: https://app.box.com/s/398aewwxuygy3rrf3d968e5iyae6vqc4

In this episode of the War Against Weeds podcast, Sarah and Joe welcome Dr. Katie Dentzman of Iowa State University to explore the human and social dimensions of herbicide resistance management. The conversation digs into why "silver bullet" solutions are so appealing, the real-world barriers to adopting integrated weed management, and how community dynamics shape decision-making in agriculture. Episode Transcript PDF: https://app.box.com/s/jttzmn1oq5mxq4n629j7ieo16l1muf7p DOC: https://app.box.com/s/ek68ebp2ztqu8lsh7msn82427fvavio8

In this episode Sarah and Joe welcome Hudson Takano of Corteva Agriscience for an update on the Herbicide Resistance Action Committee (HRAC) and the newly released 2026 HRAC Mode of Action poster. Hudson explains HRAC's role in resistance management, how herbicides are evaluated and classified, and what goes into updating the poster. The conversation highlights newly added herbicides, and why some older or low-use herbicides were removed. The episode also looks ahead to future HRAC work, upcoming herbicides, and where listeners can find the latest HRAC resources online.   https://hracglobal.com/tools/2026-hrac-global-herbicide-moa-classification   Episode Transcript PDF: https://app.box.com/s/i7fb437reya4ipjf8fbwqagw03jq2c6a DOC: https://app.box.com/s/ur49aaooemdaqlswqfnmu15o5frly1e8

In this episode of the War Against Weeds podcast, Sarah Ganske and Joe Ikley explore the emergence of PPO resistant kochia across the northern Great Plains. Joined by BASF scientists Dr. Ingo Meiners and Dr. Aimone Porri, the group walks through how field failures led to greenhouse confirmation and the discovery of novel PPO target‑site mutations. They discuss why these mutations affect some PPO herbicides but not others and how the findings are already shaping resistance diagnostics and management decisions. They end the episode with practical guidance for growers and a broader look at the importance of collaboration in tackling evolving weed resistance challenges. Transcripts PDF: https://app.box.com/s/619xibmb42kh782frwg7ul8yhmtl289c DOC: https://app.box.com/s/xwwkr88cmm9jc59ihjtqbxvic7f1x5y9

In this episode of War Against Weeds, hosts Alyssa and Sarah sit down with Dr. Karla Gage (Southern Illinois University Carbondale) and Dr. Pat Tranel (University of Illinois) to discuss emerging glufosinate resistance in waterhemp and what it means for growers moving forward. Transcripts PDF: https://app.box.com/s/0lyejemx8kyjr8s1fcgca6huqw3qaprp WORD: https://app.box.com/s/la2r3yx4208jm2v8khac9wf8zm5glfab