War Against Weeds: Recent Episodes
Sarah Lancaster
Sarah, Joe, and Mandy are three Extension weed scientists on a mission to help their audience understand what it takes for farmers to fight the war against weeds.
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
In this episode of War Against Weeds, Joe Ikley and Alyssa Essman talk with spray technology experts Dr. Tom Wolf and Dr. Jason Deveau about how rapidly spray drones have evolved and why they're challenging to use effectively. They discuss issues like swath variability, droplet behavior, and operator exposure, while also highlighting situations where drones offer clear logistical advantages. The result is a candid, practical look at both the promise and limitations of agricultural spray drones today. Episode Transcript: PDF: https://app.box.com/s/xdhzkf3hazg5jbgrfkcyadfih52mppm3 DOC: https://app.box.com/s/pyl4jbuekymcfmvn62ku0ur5kjenxz9o
In this episode of War Against Weeds, Sarah and Alyssa sit down with Dr. Reid Smeda of the University of Missouri to dig into the biology, history, and management of invasive teasels. From their origins to their modern spread along roadsides, teasels prove to be more troublesome than their quirky seed heads suggest. Dr. Smeda breaks down why they're so difficult to control and shares long‑term strategies for effective management in rights‑of‑way and beyond. Whether you've seen teasel creeping into your county or just want to stay ahead of emerging noxious weeds, this is a conversation you won't want to miss. Episode Transcripts PDF: https://app.box.com/s/sn8ypb72g1scf0xxvv1zgkb6916t6p77 DOC: https://app.box.com/s/cli6p5ld0vlemyq0m642y2osk049biof Teasel resources
https://www.fs.usda.gov/database/feis/plants/forb/dipspp/all.html
https://mdc.mo.gov/trees-plants/invasive-plants/common-cut-leaved-teasel-control
https://www.purdue.edu/fnr/extension/wp-content/uploads/2025/04/FNR-649TeaselADA-final-comp.pdf
https://www.nps.gov/articles/cutleaf-teasel.htm
https://www.dnr.state.mn.us/invasives/terrestrialplants/cutleavedteasel.html
Bentivegna and Smeda
https://doi.org/10.1614/IPSM-D-10-00026.1
https://doi.org/10.1614/WT-08-043.1
In this episode, Joe and Alyssa talk crabgrass with Purdue's Dr. Aaron Patton and PhD candidate Vera Vuković, covering why smooth crabgrass dominates lawns, how mowing height and fertility can dramatically reduce infestations, and what new research reveals about seed dormancy, germination cues, and emergence timing. They break down practical pre‑ and post‑emergence control strategies—including phenology-based timing and herbicide options—while also touching on emerging issues like quinclorac resistance. https://edustore.purdue.edu/turf-100.html https://turf.purdue.edu/turfgrass-weeds/ Aaron Patton on X: @PurdueTurfDoc Episode Transcripts PDF: https://app.box.com/s/mxdmzk8izjtsben1uin2nq4kyv2b0nz7 DOC: https://app.box.com/s/vimx2nv9cl3vsv3rlaj417pg7uipvrum
Annual ryegrass is rapidly becoming one of the toughest weeds in U.S. row‑crop agriculture. In this episode, Alyssa Essman (Ohio State) and Joe Ikley (NDSU) talk with Tom Barber (University of Arkansas), Charlie Cahoon (NC State), and Larry Steckel (University of Tennessee) about how this weed is spreading, shifting its emergence timing, and developing resistance to multiple herbicide groups. The guests discuss the strengths and weaknesses of current control options, the importance of fall residuals, and how tactics like tillage, cover crops, and harvest weed‑seed control fit into an integrated approach. They also share ongoing research aimed at better understanding ryegrass biology and improving long‑term management.
https://crop-soil-environmental-sciences.uark.edu/people/faculty-directory/uid/ltbarber/name/Tom+Barber/ [crop-soil-...s.uark.edu]
https://cals.ncsu.edu/crop-and-soil-sciences/people/cwcahoon/ [cals.ncsu.edu]
https://utcrops.com/field-crops-team/ [utcrops.com]
In this episode of War Against Weeds, Sarah and Joe sit down with Dr. Jane Mangold of Montana State University to unpack the ecology, spread, and management of cheatgrass and other invasive grasses. Jane explains why species like cheatgrass and ventenata are thriving in the Western U.S., how fire and climate patterns influence their behavior, and what tools land managers can use to stay ahead of infestations. The conversation covers biology, prevention, grazing, herbicide strategies, and new resources available to support rangeland health. https://www.invasivegrasses.com/
In this episode of War Against Weeds, hosts Alyssa Essman and Joe Ikley sit down with Melissa Widhalm, Associate Director and Regional Climatologist at the Midwestern Regional Climate Center (MRCC). Melissa introduces WEST — the Weed Emergence Scouting Tool — an experimental, temperature‑based system designed to predict first and peak emergence of key weeds like giant ragweed and waterhemp across the Midwest.
In this episode Alyssa Essman and Sarah Lancaster sit down with Washington State University toxicologist Dr. Allan Felsot for a crash course in Toxicology 101. Dr. Felsot breaks down how the EPA evaluates pesticide safety, explains the difference between hazard and risk, and clarifies common misconceptions about chemical exposure, tolerance, and persistence. The conversation also touches on glyphosate, PFAS-related concerns, and why effective science communication—and early education—matter for helping the public understand pesticide technology.
Season 11 opens with Dr. Brad Hanson of UC Davis, who joins Joe and Alyssa to unravel the resurgence of broomrape, a challenging parasitic weed threatening California's tomato processing industry. Brad explains how broomrape's underground lifecycle, tiny long-lived seeds, and strict reliance on host plants make it difficult to detect and manage. The episode covers the difference between broomrape species appearing in North America, why processing tomatoes are especially vulnerable, and how broomrape spreads through equipment and soil movement.
Here are some sources Dr. Hanson shared for the listeners:
UC broomrape page (in progress)
https://broomrape.sf.ucdavis.edu/
California Tomato Research Institute's broomrape resource page (mostly UC extension info)
https://tomatonet.org/grower-resources/broomrape-resources/
California Department of Food and Agriculture broomrape program page
https://www.cdfa.ca.gov/plant/ipc/broomrape/
This is a video article that the UCD college of ag put together a couple years ago
https://caes.ucdavis.edu/news/parasitic-weeds-threaten-tomato-plants-california-farms
On our last episode of season 10, all three hosts have a discussion on the future of weed science with Dr. Larry Steckel (University of Tennessee) and Dr. Aaron Hager (University of Illinois). They reflect on the evolution of weed management, including the increase of specific weed species, and the challenges of herbicide resistance. Both emphasize the need for integrated approaches, including cover crops, precision technology, and cultural practices.
Joe Ikley and Sarah Lancaster discuss the North Dakota Agricultural Weather Network (NDAWN) and the Kansas Mesonet with directors Daryl Ritchison and Chip Redmond, respectively. NDAWN, with over 250 stations, provides high-resolution weather data, including soil moisture and temperature measurements. Kansas Mesonet, with 94 stations, focuses on real-time data for agricultural and emergency management purposes. Both networks emphasize the importance of accurate weather data for herbicide application, particularly wind speed, inversions, and delta T measurements. The conversation highlights the critical role of Mesonets in agriculture and emergency response.
Sarah and Alyssa sit down with dryland experts Jeanne Faulk Jones (Kansas State University) and Dr. Drew Lyon (Washington State University). They highlight the challenges of managing weeds in semi-arid regions, including key weeds like Palmer amaranth, Kochia, and perennial grasses. They also discuss various strategies for water conservation and weed management.
Smallgrains.wsu.edu
Facebook page: K state sunflower district agronomy
X: cropswithgenie
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.
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
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
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.
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/
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
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
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.
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.
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
Welcome back to the War Against Weeds Podcast for our season 10 premiere! We have Dave Thiessen on today to talk about combine settings during harvest. Dave emphasizes the importance of combine setup, including optimizing corn heads, deck plates, and rotor speeds to minimize harvest losses. They discuss the impact of weather, crop conditions, and machine maintenance including regular power shutdowns to minimize volunteer crops the following season.
This week we have Ngaio Richards, Amber Burch, and Josh Wagoner on to talk about how the Early Detection, Rapid Response Program in collaboration with the Working Dogs for Conservation utilizes dogs to find noxious weeds. They talk about their work in controlling Dyer’s Woad in Montana, as well as other noxious weeds that the dogs are trained to identify.
Our guests provided some really great resources for anyone who might be interested, as well as the gear they use for protecting their dogs in the field.
https://wd4c.org/
https://outfoxfordogs.com/?srsltid=AfmBOoqp6TYSdqp7PEZGM-vYndGKwt5W1W-PHpExvhYuHjQaHCqhzNoL
https://agr.mt.gov/Noxious-Weed-Task-Force-Program#:~:text=The%20Early%20Detection%2C%20Rapid%20Response,of%20efforts%20across%20the%20state
This week on the War Against Weeds Podcast we have two guests on to talk about L-glufosinate. They talk about the Liberty Ultra label and how the ESA (Endangered Species Act) has influenced this new label. Our guests are Liam Vincent a technical marketing manager for BASF, and Lynn Justesen a technical services lead with UPL.
This week we have Dean Riechers from Univeristy of Illinois joining the podcast to talk about herbicide sites of action.
Title of mentioned publication: Herbicide resistance is complex: a global review of cross-resistance in weeds within herbicide groups
Link our guest wanted to share:
https://riecherslab.cropsciences.illinois.edu
We are joined by Rodrigo Werle and Andy Bensend this week to talk about Non-GMO Soybeans!
A few links our guests wanted to share with listeners:
https://unitedsoybean.org/about-the-checkoff/
https://wiscweeds.info/
https://coolbean.info/
https://wisoybean.org/
You can find Rodrigo on X @WiscWeeds
This week we have Dan Beran and Bob Bruss on to talk about dichlorprop-p. They cover the history and potential future of this active ingredient. Listen now!
To find more information about Nufarm go here: https://nufarm.com/uscrop/
This week Alyssa and Sarah chat with Caleb Wepprecht and Aaron Hager with University of Illinois about using fertilizers as carriers for herbicide applications.
This week on the War Against Weeds Podcast we have Dr. Andy Robinson on to chat about all things potatoes. He covers weed management, planting, harvesting and where you can find most of our potato production here in the states!
It's a bird... it's a plane... it's drones!! Join us this week as Alyssa and Joe discuss all things drones with Dr. Steve Li. If you or anyone you know is interested in drones for agricultural use, consider attending the 2025 Spray Drone End User Conference.
For more info on the conference:
https://www.aces.edu/blog/topics/farming/2025-spray-drone-end-user-conference/
This week we have Dr. JD Green on the podcast to cover everything Johnsongrass. He covers the history of Johnsongrass and how to manage it. Available now!
This week we have Dr. Michael Walsh with Charles Sturt University on the podcast to talk about the “weed chipper”. The weed chipper is a mechanical weeding implement that could be an answer to herbicide resistant weeds. Listen now to find out how the weed chipper works!
To see the weed chipper in action: https://www.youtube.com/watch?v=-1nI6Gh9khI
This week Sarah and Joe chat with Dr. Bill Johnson from Purdue University about henbit. They cover why controlling henbit is important and how to manage it in corn and soybean production. Listen now!
This week our host Sarah and co-host Joe chat with Dr. Erin Burns (Michigan State University) and Dr. Dan Quinn (Purdue University) about short corn. What makes it different from standard corn? What does weed control look like? Listen to find out!
Erin’s Links:
https://www.canr.msu.edu/weeds/
Dan’s Links:
https://ag.purdue.edu/department/agry/faculty-pages/the-kernel/
X: @PurdueCorn
https://www.hoosieragtoday.com/podcast/purdue-crop-chat/
Welcome 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
This week on the War Against Weeds Podcast, we have special guest Dr. Tom Wolf joining us to talk about water quality and its impact on herbicide applications.
You can find Tom on X: @nozzle_guy
Additional helpful links: https://sprayers101.com/mode-of-action-and-spray-quality/
2025 ND Weed Guide: https://www.ndsu.edu/agriculture/sites/default/files/2024-12/2025%20ND%20Weed%20Guide%20Final_With%20Color%20Covers.pdf
Welcome back to season 9 of War Against Weeds! We are so excited to be back, and to start our season off with Roger Batts to discuss his work with the IR-4 Project. Learn about what IR-4 is and what services it provides for farmers across the United States.
For our final episode of season 8, we have agronomists Kyle Okke, Jason Hanson and Jeff Nagel on to discuss the economics of weed control for growers. They cover their major weed challenges and how additional inputs like machinery cost, fertility, and pest management are all factored into planning for ’25. Let’s wrap up this season by reflecting on ’24, and looking into ’25!
You can find Jason and Kyle on X at:
@rocknrollagrnmy and @okkefromuskogee
And find their podcast Agronomists Happy Hour at https://agronomistshappyhour.com/
And on X @AgHappyHour
You can find more information about Keystone Cooperative here:
https://www.keystonecoop.com/
Thank you all for another great season!
Dr. Todd Gaines with Colorado State University joins us this week to talk about some novel genetic methods to control weeds! He covers the genomic timeline and how things have changed through the years, and how genomics helps understand herbicide resistance by identifying target site genes and mutations.
Some links that Dr. Gaines wanted to share:
https://www.weedgenomics.org/
https://link.springer.com/article/10.1186/s13059-024-03274-y
https://www.ingentaconnect.com/content/resinf/opm/2024/00000035/00000004/art00002
Welcome back to the War Against Weeds Podcast! This week we are joined by guests Jeremy Safranski (Director of Strategic Planning at CHS Inc.) and Mike Bjertness (Management at C-W Valley Co-op) to discuss the herbicide supply chain and their experiences in the United States.
You can find these two guests here:
https://www.linkedin.com/in/mike-bjertness-cca-0b404326a/
https://www.linkedin.com/in/jeremy-safranski0312/
And the links they provided for more information:
www.cwvalley.com
www.chsinc.com
This week on the War Against Weeds Podcast, we have special guests Drs. Cara McCauley and Jason Adams on to chat about the herbicide discovery process. They cover the many things involved in creating new chemistries for farmers to use in the war against weeds!
If you want to reach out to either of our guests, you can find them here:
https://www.linkedin.com/in/cara-mccauley/
https://www.linkedin.com/in/jason-adams-6b356322b/
Thanks for listening!
This week on the War Against Weeds Podcast, we have Drs. Dale Shaner and Tom Mueller joining us to discuss enhanced degradation of triazine herbicides!
You can find more information on this topic at these links below provided by our guests.
https://utia.tennessee.edu/publications/wp-content/uploads/sites/269/2023/10/PB1580.pdf
https://utcrops.com/
https://scijournals.onlinelibrary.wiley.com/doi/abs/10.1002/ps.1909
Thanks for listening!
This week Joe and Alyssa chat with Larry Steckel from the University of Tennessee!
We are partnered with Crop Protection Network (CPN), so check out their page for more great information, and thanks to our sponsor North Central IPM Center for their support!
This week we are talking pumpkins! Dr. Marty Williams and Dr. Alan Walters chat with Sarah and Alyssa about pumpkin production in Illinois. Jack-o’-lanterns, processing pumpkins, and gigantic pumpkins oh my!
You can find more information about our guests at: www.martywilliamslab.com
and https://academics.siu.edu/agriculture/horticulture/faculty/walters-alan.php
Marty's Reference Table:
Table E-4 shows crop rotation planting restrictions for a long list of herbicides. (Click on link below!)
https://extension.umd.edu/sites/extension.umd.edu/files/2022-01/2022-2023%20Vegetable%20Production%20Recommendations.pdf
This week on the War Against Weeds Podcast, Sarah and Joe chat with Lynn Sosnoskie (Cornell University) and Thierry Besançon (Rutgers University) about LASER WEEDING! Some highlights from the episode include how these machines work, their utility in different cropping systems, and how this could change weed control in the future!
Lynn can be found on X @LynnSosnoskie and Instagram @specialtycropweedscience
Thierry can also be found on Instagram @thierrybesancon
For more information about Carbon Robotics you can find them here: https://carbonrobotics.com/
Thank you for listening!
Witchweed! This spooky parasitic weed is the topic of this week’s episode. Alyssa and Joe chat about witchweed's biology, history and economic impact with Dr. Bridget Lassiter and Dr. David Nelson!
You can find more information about Dr. Nelson at https://nelsonlab.ucr.edu/, and here are some additional links that our guests mentioned in the episode.
https://www.toothpickproject.org/
https://promise.nioo.knaw.nl/en
https://academic.oup.com/plphys/article/185/4/1292/6041598
www.invasiveplantcontrol.com/wp-content/uploads/2018/04/roberteplee.pdf
This week’s topic is desiccation! Joe and Sarah discuss fall desiccants in various bean crops with Dr. Shawn Conley (University of Wisconsin-Madison) and Dr. Jeremy Ross (University of Arkansas)!
You can find them both on X and their university websites!
X: @badgerbean
www.coolbean.info
X: @.arksoydoc
www.Uaex.uada.edu
This week our host Joe Ikley and co-host Sarah Lancaster discuss everything “Wild Oat” with guests Kirk Howatt and Breanne Tidemann. They cover biology, spread, and management of wild oat in North Dakota and various parts of Canada.
You can find Breanne on Instagram @lacombweedsci, and on X @breanntidemann.
More info on the wild oat action committee can be found here: https://weedscience.ca/wild-oat-action-committee/
Kirk can be found at NDSU’s website, and more information about wild oat in North Dakota can be found here: https://www.ag.ndsu.edu/weeds/nd-weed-control-research
This week our host Alyssa Essman and co-host Joe Ikley chat with Dr. Dwight Lingenfelter from Penn State University about burcucumber. They discuss seed characteristics, where it’s problematic for farmers, and how to control it.
We are partnered with Crop Protection Network (CPN), so check out their page for more great information, and thanks to our sponsor North Central IPM Center for their support!
This week our host Sarah Lancaster and co-host Alyssa Essman discuss the final version of the herbicide strategy plan in accordance with the Endangered Species Act (ESA). They are joined by special guests Bill Chism and Ashlea Frank to chat about the timeline for implementation of these strategies, and what this means for farmers and applicators in the years to come.
A few helpful links our guests provided for any questions regarding the ESA.
https://www.epa.gov/endangered-species
https://www.Festf.org
https://wssa.net/endangered-species/
We are partnered with Crop Protection Network (CPN), so check out their page for more great information, and thanks to our sponsor North Central IPM Center for their support!
This week our host Alyssa Essman and co-host Sarah Lancaster chat with Logan Simon (Kansas State University) and Travis Legleiter (University of Kentucky) about cover crops. They cover the trade-offs of having cover crops in their states, and their most commonly asked questions by farmers.
Our guests can be found on X @SWKSAgronomy and @TravisLegleiter
More information about their universities and programs can be found here:
https://weedscience.ca.uky.edu/
https://www.wkrec.org/
WELCOME BACK to season 8 of the War Against Weeds Podcast! Our first episode of the season we have three special guests on to recap their summers. The whole team chats with guests Kody Came (Kansas), Austin Sundeen (North Dakota), and Greg McGlinch (Ohio) about the wins, losses, and lessons learned from the summer of 2024.
Our last topic for the season is weed control in MINT! Our guests this week are Dr. Stephen Meyers with Purdue University, and Dr. Pete Berry with Oregon State University. They chat about the challenges in growing mint, and share some other interesting facts about growing this specialty crop!
Dr. Stephen Meyers and his lab can be found at the links below:
https://www.purdue.edu/hla/sites/hla-happenings/article-tags/dr-stephen-meyers-lab/
https://twitter.com/stephenlmeyers
Dr. Pete Berry can be found at this link:
https://cropandsoil.oregonstate.edu/users/pete-berry
Welcome Back to the War Against Weeds Podcast! This week Joe and Sarah discuss harvest weed seed control with Breanne Tidemann. Breanne is a research scientist with Agriculture and Agri-Food Canada with her focus on weed management and field agronomy. Listen in to learn all about harvest weed seed control up in Canada!
Join us this week as Joe and Sarah chat with Dr. Clarence Swanton with the University of Guelph, while he delves into the intricacies of plant growth!
This weeks topic is carry over! Sarah and Alyssa chat with guest host Kevin Bradly from the University of Missouri about herbicide carry over.
This week Sarah and Joe chat with Bryan Young from Purdue University about crop injury!
This week our topic is interseeding! What is interseeding? How is it used, and how can it be beneficial for growers? Find out in this episode! Alyssa and Joe chat with Dr. Karla Gage with Southern Illinois University about her work with interseeding across the country.
This week on the War Against Weeds Podcast Alyssa and Sarah discuss weed control failures with Dr. Peter Sikkema (@psikkema1) who recently retired from the University of Guelph.
Thanks to our friends and sponsors @CropNetwork and @ncipmc for their support! Check out their pages for more great info!
This week Joe and Alyssa are joined by Dr. Brian Mealor from the University of Wyoming with another exciting episode about weed control in rangelands. This week they talk specifically about broadleaf weeds including leafy spurge, yellow toadflax, purple loosestrife and many many others.
Interested in a summer internship in Wyoming? Check out our social media to see a flyer with more information.
Other links mentioned in the episode:
https://www.invasivegrasses.com/
https://www.uwyo.edu/plantsciences/department-directory/mealor-brian.html
Alyssa and Joe chat with Bill Johnson from Purdue University about poison hemlock, and other plants from the parsley family.
This week on the War Against Weeds Podcast Joe and Sarah chat with Tommy Butts about herbicide burndowns in no-till fields. An Arkansas, Kansas, and North Dakota perspective on burning down weeds prior to or after planting.
Some links Tommy mentioned in the episode:
https://www.uaex.uada.edu/farm-ranch/pest-management/weed/default.aspx
https://ag.purdue.edu/btny/purdueweedscience/
Tommy Butts on Twitter/X: @weedsARwild
Sarah and Alyssa chat with Dustyn Sawall about herbicide formulations. Dustyn works as a principle chemist for Winfield United and really gets “into the weeds” about the behind the scenes work and ideas that go into formulating the herbicides that make it to the market.
Sarah and Joe chat with Dr. Dean Riechers from Univeristy of Illinois about safeners. What they are, how they are used and potential future uses!
This week’s topic is ~isomers~ Join Sarah and Alyssa as they sit down with Mark Kitt, a Technical Product Lead with Syngenta to chat about herbicide formulations.
This week on the War Against Weeds Podcast Alyssa and Joe chat with Marty Williams and Christopher Landau about glyphosate resistance in North America.
The Silver Bullet That Wasn’t: Rapid Agronomic Weed Adaptations to glyphosate in North America
Here is a link to the article: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10697415/
We are BACK with our first episode of season 7! This week all three hosts chat with 3 farmers from the Midwest about their weed management programs and experiences. Our guests include Mike Langseth from North Dakota, Rick Clifton from Ohio, and Scott Gigstad from Kansas.
Tune in to our last episode of the season, where Alyssa and Joe chat with Dr. Jim Westwood and Dr. Claude dePamphilis about parasitic plants. (Including mistletoe, among many others!)
Some links mentioned in the episode:
https://spes.vt.edu/faculty-staff/faculty/westwood-james.html
https://www.huck.psu.edu/people/claude-depamphilis
This week on the War Against Weeds Podcast Joe and Alyssa are joined by Dr. Hartzler to discuss the North Central Weed Science Society and how it has grown and changed over the years.
This week on the War Against Weeds Podcast Sarah and Joe chat with Mark Waddington about his perspective on weed management in Europe.
Join Joe and Sarah this week as they chat with Hudson Takano about herbicide modes of action!
EAT THE WEEDS! We have a SPECIAL episode this week for Thanksgiving. Alyssa and Sarah chat with WAW podcast editor Steph DeSimini about edible weeds!!
Sarah and Alyssa chat with Dr. Aaron Hager about Group 15 herbicides (Long-Chain Fatty Acid Inhibitors)! Listen now!
This week Sarah and Alyssa sit down with Dr. Nathan Mueller and Dr. Elizabeth Hawkins to talk about on farm research!
This week Alyssa and Joe chat with Dr. Bill Johnson from Purdue University about weed control guides. How they are made, the differences between regions, and the importance of these guides. Listen now!
Some links mentioned in the episode:
https://extensionpubs.osu.edu/
https://www.ndsu.edu/agriculture/extension/publications/north-dakota-weed-control-guide
This week Sarah and Alyssa are joined by Tom Wolf, Lauren Lazaro (@laurenmlazaro) and Brian Burgran to talk about targeted spray applications! You can find more information about more of their links provided below:
https://sprayers101.com/
https://www.facebook.com/PrairieLandPartnersLLC/
This week Alyssa and Sarah are joined by Dr. AJ. Tarpoff from Kansas State University. They discuss poisonous plants in livestock!
This week on the War Against Weeds Podcast we are joined by Dr. Brian Mealor from the University of Wyoming to discuss weed control in pasture and rangeland.
Link mentioned in the episode: https://www.eddmaps.org/
Noxious weeds, robot mowers, and snow mold, oh my! Join us this week as Joe and Sarah chat with turf weed scientist, Dr. Quincy Law.
This week on the War Against Weeds Podcast Alyssa and Joe are joined by Dr. Flessner, an extension specialist with Virginia Tech (@VTAGWeeds). They chat about harvest weed seed control methods, pros and cons, and how folks can look into these methods for their own farms.
Here are some links mentioned in the episode to get started:
https://growiwm.org/is-it-time-to-consider-harvest-weed-seed-control/
https://growiwm.org/tag/grow-farmer-forum/
This week Sarah and Joe are joined by special guests Dr. Kelly Tindall, Dr. Cameron Douglass, Dr. Stanley Culpepper, and Dr. Lee Van Wychen. Part 2 covers the herbicide strategy plan in more detail.
Please check out these links to learn more about the topics discussed today:
Webinar Link to EPA’s Proposed Herbicide Strategy and EPA’s Vulnerable Species Pilot Project: https://www.usda.gov/oce/pest/webinar
Draft Strategy Press Release: https://www.epa.gov/newsreleases/epa-releases-draft-strategy-better-protect-endangered-species-herbicide-use
To Provide Comments and to see the herbicide framework and documets: https://www.regulations.gov/docket/EPA-HQ-OPP-2023-0365
This week Sarah and Joe are joined by special guests Dr. Kelly Tindall, Dr. Cameron Douglass, Dr. Stanley Culpepper, and Dr. Lee Van Wychen. In part 1 they introduce the vulnerable species pilot program and the herbicide strategy plan. Part 2 will cover the herbicide strategy plan in more detail.
Please check out these links to learn more about the topics discussed today:
Webinar Link to EPA’s Proposed Herbicide Strategy and EPA’s Vulnerable Species Pilot Project:
https://www.usda.gov/oce/pest/webinar
Draft Strategy Press Release: https://www.epa.gov/newsreleases/epa-releases-draft-strategy-better-protect-endangered-species-herbicide-use
To Provide Comments and to see the herbicide framework and documets: https://www.regulations.gov/docket/EPA-HQ-OPP-2023-0365
Welcome BACK for season 6 of the War Against Weeds Podcast! This week we have Sarah, Joe and Alyssa to recap their summers and to discuss the most recent questions in the weed science world.
Sarah, Joe and Alyssa chat about the wrap up to season 15. They cover favorite episodes and topics, and what we can expect moving forward.
This week Alyssa and Sarah chat with Dr. Pat Tranel with the University of Illinois about herbicide resistance.
Alyssa and Sarah are joined this week by Dr. Thomas Butts with the University of Arkansas to chat about weed control in rice. Listen now!
This week on the War Against Weeds Podcast, Sarah and Joe chat with Dr. Kevin Folta about transgenic crops and other technologies related to agriculture.
This week's episode is Part 2 of the Endangered Species Act series. Joe and Sarah chat with Bill Chism, who previously worked as a senior biologist with the EPA, and currently serves as the chair of the WSSA Endangered Species Act Committee.
This week’s topic is a two part series! Join Sarah and Joe as they chat with Dave Scott who currently serves as the Pesticide Administrator with the Indiana State Chemists Office.
Sarah and Joe chat with Dr. Erin Hill from Michigan State University about weed ID apps!
Join Joe as he chats with Steven Mirsky from the USDA, Muthu Bagavathiannan with Texas A&M, and Emily Unglesbee, Director of Outreach and Extension at GROW.
This week Joe and Sarah chat with Jodi Boe about ALS herbicides and soils! She is a Certified Crop Advisor in North Dakota, and is currently working for AGVISE Laboratories in Northwood, ND.
We are joined this week by Dr. Stanley Culpepper and his PhD student Taylor Randell-Singleton from the University of Georgia. Taylor won the Weed Science Society of America (WSSA) Outstanding Graduate Student award at the 2023 meeting in Arlington, Virginia. Congrats Taylor!
Sarah and Alyssa chat with Dr. Rodrigo Werle and his phd student Jose Nunes from the Unvirsity of Madison-Wisconsin about planting cover crops for weed control.
We are joined this week by Dr. Peter Sikkema with the University of Guelph and Dr. Aaron Hager with the University of Illinois to discuss metribuzin use in soybeans.
This week Joe and Sarah chat with Dr. Brian Jenks and Dr. Charles Geddes about controlling kochia in North Dakota and Canada.
This week on War Against Weeds Joe and Alyssa chat with Dr. Travis Legleiter at Kentucky State University and Dr. Larry Steckel from The University of Tennessee about herbicide resistant ryegrass in the South.
Sarah, Alyssa and Joe start out season 5 by discussing new products and concerns for 2023.
We are partnered with Crop Protection Network (CPN), so check out their page for more great information, and thanks to our sponsor North Central IPM Center for their support!
The gangs all here this week! Sarah, Joe, Alyssa and our editor Steph discuss their favorite parts of season 4, and what's to come for season 5.
Join Joe and Alyssa as they chat with Dr. Mark Loux, a (recently) retired weed scientist from The Ohio State University about his experiences and thoughts through his career.
It's electric! Join Alyssa and Sarah as they chat with weed scientists Dr. Lynn Sosnoskie and Dr. Kevin Bradley as they chat about using electricity for weed control.
Join Sarah and Alyssa as they chat with Dr. Brad Hanson from UC Davis about weed management in orchard and vineyard crops.
A few resources that Brad mentions to check out include @UCIPM (UC Statewide IPM Program) on twitter and https://wric.ucdavis.edu
Join Sarah and Joe as they chat with Dr. Erin Burns at Michigan State University about weed ecology in our changing climate.
Join Joe and Sarah as they chat with Dr. Michael Walsh about his experiences on weed managment in Australia.
Join Joe and Sarah as they chat with Dr. Michael Walsh about his experiences on weed managment in Australia.
Join Joe and Alyssa as they chat with Dr. Bill Johnson from Purdue University and Dr. Christy Sprague from Michigan State University about ragweeds!
Join Joe and Alyssa as they chat with Dr. Bill Johnson from Purdue University and Dr. Christy Sprague from Michigan State University about ragweeds!
Dr. Stott Howard, a Heartland regional manager with Syngenta joins us this week to talk about his industry perspective around hiring and managing in weed science.
Alyssa and Sarah chat with Dr. Kirk Howatt from North Dakota State University about the importance of going "back to the basics".
We are partnered with Crop Protection Network (CPN), so check out their page for more great information, and thanks to our sponsor North Central IPM Center for their support!
Alyssa and Joe chat with Dr. Todd Baughman, a research and extension weed scientist from Oklahoma State University. They discuss moisture extremes and how these changes in weather patterns can influence weed management and crop selection.
We are partnered with Crop Protection Network (CPN), so check out their page for more great information, and thanks to our sponsor North Central IPM Center for their support!
Joe Ikley and Sarah Lancaster discuss fall applications of herbicides for weed management and pH extremes with Dr. Brian Jenks out in Western North Dakota.
We are partnered with Crop Protection Network (CPN), so check out their page for more great information, and thanks to our sponsor North Central IPM Center for their support!
Joe Ikley and Sarah Lancaster discuss fall applications of herbicides for weed management and pH extremes with Dr. Brian Jenks out in Western North Dakota.
We are partnered with Crop Protection Network (CPN), so check out their page for more great information, and thanks to our sponsor North Central IPM Center for their support!
Join Sarah Lancaster and Joe Ikley as they chat with Dan Smith, a regional agronomist from the University of Wisconsin-Madison to talk about the importance of combine cleanout!
Find Dan on twitter @agronomybadger
How to Clean a Combine to Prevent Spreading Weed Seeds- https://www.youtube.com/watch?v=nDMq1UanSkE
Between-Field Combine Clean-out to Reduce Weed Seed Movement- https://www.youtube.com/watch?v=kHON9cnCIdo
https://crops.extension.iastate.edu/files/icm/between-field_combine_clean-out_fact_sheet_1.pdf
Join Sarah Lancaster and Joe Ikley as they chat with Dan Smith, a regional agronomist from the University of Wisconsin-Madison to talk about the importance of combine cleanout!
Find Dan on twitter @agronomybadger
How to Clean a Combine to Prevent Spreading Weed Seeds- https://www.youtube.com/watch?v=nDMq1UanSkE
Between-Field Combine Clean-out to Reduce Weed Seed Movement- https://www.youtube.com/watch?v=kHON9cnCIdo
https://crops.extension.iastate.edu/files/icm/between-field_combine_clean-out_fact_sheet_1.pdf
Joe Ikley and Alyssa Essman chat with Karen Corrigan, Kyle Okke, and Jason Hanson about crop injury following labeled herbicide applications.
Find everyone on twitter!
Karen Corringa - @weedgirl24
Kyle Okke - @okkefromuskogee
Jason Hanson - @RocknRollAgrnmy
Check out their podcasts: @girlstalkag and @AgHappyHour We are partnered with Crop Protection Network (CPN), so check out their page for more great information, and thanks to our sponsor North Central IPM Center for their support!
Joe Ikley and Alyssa Essman chat with Karen Corrigan, Kyle Okke, and Jason Hanson about crop injury following labeled herbicide applications.
Find everyone on twitter!
Karen Corringa - @weedgirl24
Kyle Okke - @okkefromuskogee
Jason Hanson - @RocknRollAgrnmy
Check out their podcasts: @girlstalkag and @AgHappyHour We are partnered with Crop Protection Network (CPN), so check out their page for more great information, and thanks to our sponsor North Central IPM Center for their support!
Sarah and Joe introduce new host Alyssa Essman, our new partnership with the Crop Protection Network, recap issues from the summer, and give us a look into what season 4 will bring!
Special thanks to the North Central Integrated Pest Management Center for their funding and support! https://www.ncipmc.org/
Sarah and Joe introduce new host Alyssa Essman, our new partnership with the Crop Protection Network, recap issues from the summer, and give us a look into what season 4 will bring!
Special thanks to the North Central Integrated Pest Management Center for their funding and support! https://www.ncipmc.org/
Mandy, Joe, and Sarah are joined by the podcast intern, Taylor, as they share their highlights from this season and a look into what the summer and season 4 will bring us.
Tommy Butts and Larry Steckel join us again to discuss the latest updates on resistance in the weed world.
Peng Tian, from MU, joins us to cover submitting samples to your extension services. There are a lot of helpful tips in this episode.
Andrew and Bridgette join us to talk about pesticide residues and what you might be doing without even knowing you are. The link to their lecture is on our Twitter page.
Find out what challenges and opportunities lie within the dry bean and field pea crops when it comes to weed management.
Scott McElroy from Auburn joins us to #talkturf. Find out about herbicides used in turfgrass and more.
Stanley Culpepper joined us to discuss the Endangered Species Act and the work that he does.
This week we chatted with the Weed Science Society of America's winners from the University of Illinois. They covered lots of topics and focused on their findings and their areas of expertise.
Dr. Werle joins us to talk about planting soybeans green and how to terminate cover crops.
Melissa Wilson, the manure specialist, talks about some stinky stuff this week and how manure is related to weed science.
Curt Thompson came out of retirement to help us with this one. Kochia tumbleweeds are a common species that we all know a little too well. Curt gives us an insight into the characteristics, tolerance, and much more of the tumbleweed.
Dawn Refsell, field science leader with Corteva, joins us to talk all things herbicide formulations. She covers multiple aspects of the formulations like discovery, development, the chemistry of them, and more.
Mandy and Sarah are joined by Greg Dahl to discuss adjuvants and how you can utilize them.
Welcome to Season 3! We are excited to take a look into 2022 with several different people from all different regions and get their opinions about the top weed management concerns going into 2022.
This week Joe Ikley interviewed several of the student winners from the NCWSS annual meeting. They shared their major findings and takeaways from their research.
Anita Dille joins us this week to discuss peer-review publications and gives us some behind-the-scenes insight into the process of them.
Precision weed management with Tom Wolf, Sarah, and Joe. Check out our social media to find out more about Tom and the link to his website.
Weeds and Genomics: Dr. Gaines guides us past the jargon and helps us understand the value of genomics in weed management. The link to the website mentioned in this episode can be found on our Twitter and Facebook.
Lee Van Wychen joins us this week to discuss herbicide registration and labels that you should be aware of.
Sarah and Joe are joined by two guests, Carroll and Charlie, who are with the Syngenta company. They give you insights into herbicide registration from a company perspective.
Bish and Ikley are joined by Tommy Butts from the University of Arkansas, to discuss herbicide technologies and application for next year.
JD Green from the University of Kentucky is our guest for this episode and we talked with him about the resurgence of old threats, like cocklebur and velvetleaf.
All three of our hosts are joined by a panel of weed scientists this week. They are putting their minds together to update you on the herbicide shortage and how you can prepare for it.
The risks and the advantages of planting soybeans early are on the agenda for this episode.
Mandy and Sarah are joined by Lynn Sosnoski from Cornell University. Invasive weeds and controlling perennial weeds are on the agenda for today.
Join our hosts this week to hear what they have to say about building a crop rotation for specialty crops. Our guest this week is Dr. Tom Peters.
Sarah and Joe are joined by Dr. Senseman from OSU and they cover herbicide carryover potential, herbicide degradation, and bioassays.
Welcome to Season 2. Mandy and Joe are joined with two guests this week, Kevin & Lauren and they discuss weed seed at harvest.
Joe Ikley reports with the current field conditions from all three states. He also discusses some of the upcoming Season 2 content that we are preparing for. You can now follow War Against Weeds podcast on Facebook, Instagram, and Twitter to see upcoming episode content, behind the scenes & more!
Mandy Bish brings you the current field updates and introduces you to some more topics that we will cover in Season 2. Our summer field updates will end next week and we are bringing you Season 2 starting September 15th.
This week Sarah gives you field updates from all three states and a sneak peek into what season 2 topics you can expect to hear about. Season 2 will begin with full length episodes after Labor Day!
Join Joe Ikley as he discusses the field condition updates and the current herbicide conditions. We will return back to our full length episodes in September!
Tune in this week to hear from Mandy Bish as she gives this weeks field updates and also speaks with some graduate students from the University of Missouri.
Join Sarah and Joe as they describe what the Weed Contest is all about and hear from four students that are participating in the contest this year. Learn more about North Central Weed Science Society and the contest here.
Sarah and Joe visit with graduate students to discuss some the training opportunities available at the summer weed contest sponsored by the North Central Weed Science Society.
Joe joins us this week and gives updates from around the states. He discusses an update on one of his research locations and talks about how weed seed was imported through cheap cattle feed.
We hope everyone had a great holiday weekend last week! We are back with Mandy Bish who is joined by Dr. Larry Steckel from the University of Tennessee. They discuss the herbicide issues we are facing and the different herbicide management practices we can use for crops.
This week Sarah gives some insights on the weather from our three hosts' states and talks about spraying management. Aaron Hager joins us this week as our guest from the University of Illinois. He discusses weed management, graduate research, and other exciting topics.
Tune in this week to get an update from Joe as he discusses the wheat harvest weather updates. Travis Legleiter joins Joe to share his wheat harvest updates from Kentucky. Don't forget June 30th is the Dicamba cut-off date!
Quick update from Mandy Bish with a guest speaker, Erin Burns, from the University of Michigan. Mandy discusses the weather along with herbicide application.
Sarah Lancaster covers the field updates and discusses the concerns from the rain amounts some have received along with the difficulties of the control of weeds. Guest speaker this week is Rodrigo Werle from the University of Wisconsin.
Joe covers the field updates from Sarah, Mandy, and himself. He discusses Pigweed density, weed control, and herbicide application.
Mandy talks about the rain mounts seen in Missouri, North Dakota, and Kansas along with planting conditions and yield loses. Please consider filling out our listener survey.
Sarah shares a quick overview of field activities related to weed management in Missouri, North Dakota, and Kansas.
Sarah, Joe, and Mandy review the topics and highlights of the first season of full length podcasts and share a vision for the future of the podcast. A listener survey is announced.
Joe and Mandy talk with Travis Legleiter, Extension Assistant Professor with the University of Kentucky about factors to consider when selection a spray nozzle.
Sarah and Joe catch up with Bill Johnson, Extension Weed Scientist at Purdue University to talk about whys and hows of sprayer cleanout.
Mandy and Joe talk with Jean Payne as she prepares to retire after 17 years as the President of the Illinois Fertilizer and Chemical Association. The topic is concerns of custom applicators in 2021.
Joe and Mandy talk recommendations for controlling volunteer corn with Meaghan Anderson, a field agronomist with Iowa State University Extension.
In part 2 of our cover crop conversation, Mandy and Sarah visit with Trey Hill of Harborview Farms in Maryland about his experiences with cover crops.
Cover crops are such a hot topic that we're going to spend two episodes on the subject. In part 1, Mandy and Sarah visit with Kevin Bradley from the University of Missouri to discuss what the research says about weed management with cover crops.
Joe and Mandy visit with Mark VanGessel from the University of Delaware, who was the first to confirm glyphosate-resistant marestail (horseweed) in the US. The discussion focuses on how wind helps marestail move long distances and offers some tips for control.
Sarah and Mandy talk with Iowa State Weed Scientist Bob Hartzler about managing the soil weed seed bank.
Mandy and Sarah visit with Mark Loux, from Ohio State University to talk about the best time to use preemergence herbicides and other topics related to rotating herbicides to manage herbicide resistant weeds.
Joe and Sarah visit with agronomists Jason Hanson and Kyle Okke about managing weeds in diverse crop rotations.
Lee Briese joins Joe and Sarah to discuss practical aspects of integrated weed management, including tillage cover crops.
Mandy and Joe discuss resistance to residual herbicides with Aaron Hager from the University of Illinois. Then, starting at 21:30, they visit with Bryan Young from Purdue University to discuss resistance to postemergence herbicides.
Sarah and Mandy visit with Christy Sprague, Professor and Weeds Specialist at Michigan State University to talk about how agriculture professionals can use the Take Action herbicide classification chart (www.iwilltakeaction.com) to manage herbicide resistant weeds
Joe, Sarah, and Mandy have a wide-ranging discussion about why we don't have a 'silver bullet' for weed management and what that means for recommendations and research.
Sarah, Joe, and Mandy give a quick overview of their backgrounds and goals for War Against Weeds