Damon L. Smith
@badgercropdoc
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University of Wisconsin-Madison Professor and Ext. Field Crops Pathologist (corn, soy, wheat, alfalfa)
Madison, WI
Joined September 2012
Been a big week of field days for me. Hope we got to talk this week. Thanks to all of the attendees!.
The 2025 UW–Madison Agronomy & Soils Field Day at the Arlington Ag Research Station took place today! 🌱. A big thank you to everyone who joined us! @UWMadisonCALS
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Managing Silage Corn Diseases And Mycotoxins At Chopping Time. Time to read up and prepare for silage harvest!
badgercropnetwork.com
Damon Smith, Extension Field Crops Pathologist, Department of Plant Pathology, University of Wisconsin-Madison We are quickly approaching that time of year where we will see silage choppers working...
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Getting lots of questions on spraying corn for southern rust. As is always the case, the answer is "It depends. " What does it depend on? Growth Stage! See table 2 in this @CropNetwork pub which lays out the critical growth stages for fungicide apps:
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RT @itsAmit_Sharma: Honored to present my research on Coniothyrium minitans for managing Sclerotinia stem rot of soybean at #PlantHealth202….
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RT @CropNetwork: Stalk rots cost farmers $4.2 billion in the past five years. Test stalk integrity using the pinch test 40-60 days after….
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RT @alisonrISU: This will be great data to improve and develop disease prediction models @Ag_PMT @CropNetwork Thanks to USDA-ARS for fundin….
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RT @CropNetwork: Corn disease took 6% of every acre in 2024. Scout now to plan for future seasons.
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RT @CropNetwork: "Foliar symptoms alone are not enough to diagnose [sudden death syndrome]. It is important to inspect plants closely, dig….
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RT @datascience_uw: The Alfalfa Fungicide ROI Calculator helps farmers make informed decisions and increase their profitability. DSI worked….
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Run scenarios for your farm to make decisions that maximize ROI in alfalfa production!.
NEW Alfalfa Fungicide ROI Calculator at . @badgercropdoc @cropdoc08 @MahDuffeck @DTelenko @MartinChilvers1 @BisonBeanDoc @KelseyFAndersen @datascience_uw Funding: @ncipmc @USDA_NIFA #alfalfa #fungicide
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RT @CropNetwork: At #planthealth25? Stop by the Crop Protection Network booth for the NEW "Plants Don't Sneeze" board book!. Fill out a sho….
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RT @CropNetwork: Diplodia ear rot has been found in multiple states in 2025. No mycotoxins are associated with this ear rot in the US and C….
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RT @CropNetwork: Scouting is similar for all corn ear rots. Begin scouting at late dent (R5) for presence and severity of ear rots. Select….
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Getting a lot of VERY low severity tar spot pictures with corn approaching or at R3 growth stage. Study the corn fungicide ROI tool carefully; with low severity tar spot, it might not pay to spray. Turn the numbers and find out yourself! @CropNetwork
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AI is a handy tool, but we still have to use our brains 🧠! We also need to keep generating high quality research and outreach outputs to train these tools.
PSA: Don’t solely rely on AI. I was invited to give a presentation in the northern part of US and I was sent a ChatGPT output of the production region and major issues. Top two diseases on soybean listed where Asian soybean rust and tar spot! 🙄 @badgercropdoc your behind 😂.
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RT @CropNetwork: Scouting for soybean stem diseases article from Extension at @cropdoc08 @baldpathologist @cropdi….
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RT @CropNetwork: “Integrating several [white mold] management practices including cultural control, varietal resistance, scouting, predicti….
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RT @CropNetwork: Goss's wilt bacteria can infect corn at any stage. Lesions are long, gray-green to black, water-soaked, and have wavy edge….
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