Rodrigo Werle
@WiscWeeds
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Associate Professor & Extension Cropping Systems Weed Scientist, University of Wisconsin-Madison. Proud #WiscWeeds lab PI.
Wisconsin
Joined March 2016
Major difference in late-season weed control between these two corn plots!. ✅ Clean plot: Strong residual herbicide at planting + timely POST. ❌ Weedy plot: Two herbicide passes without residuals.
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Late-season annual grass escapes in corn giving you heartburn? 🌱🔥. You’re not alone. Here’s some food for thought:
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Waterhemp giving you a hard time?. Join us for the 2025 #WiscWeeds Integrated #Waterhemp Management Plot Tour!. 🗓️ Thursday, August 7, 2025.📍 O'Brien Family Farm, Brooklyn, WI.🕞 Starts at 3:30 PM.🍽️ Brat dinner at 6:15 PM. Featuring research on:.✅ PRE & POST herbicide programs
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Troubling news out of Illinois! Our @WISoyCheckoff sponsored research is also detecting signs of Group 15 (S-metolachlor) resistance in Wisconsin #waterhemp populations.
Research funded by @ILSoybean checkoff reveals Group 15 resistance in waterhemp is more widespread and complex than previously thought — explore the findings and management tips in the Annual Insights Report.
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Hoophouse herbicide volatility trials underway! 🌱🌡️. This is one of the methodologies used by weed scientists to evaluate herbicide volatility. Soil flats with different treatments (e.g., herbicide formulations, tank mixtures) are placed inside a hoophouse next to a susceptible
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Excited to share our latest work: “Termination strategies for high biomass cereal rye cover crop in soybean planting green systems” by @JacobFelsman et al. (2025). Combining roller-crimper with glyphosate was an effective strategy for terminating high-biomass cereal rye
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Excited to share our latest work: “Influence of glufosinate mixtures on waterhemp control and soybean yield” by @_arsenijevic et al. (2025) . #Glufosinate alone provided effective #waterhemp control, so mixtures didn’t improve efficacy. However, as we continue to rely on
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📅 Save the Date (September 11, 2025)!. Join us for the 2025 Wisconsin Extension Weed Management Workshop at Arlington Ag Research Station. This year we’ll be focusing on novel targeted herbicide application technologies (aka See & Spray)! Hope to see you there.
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Excited to share our latest work: “Stakeholder assessment of weed management practices and perceptions of targeted spraying technologies in corn-soybean systems” by @ZaimUgljic et al. (2025). This survey-based study provides timely insight into how growers, crop consultants, and
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Textbook 2,4-D injury in corn: malformed brace roots developing above the soil line. Herbicide applied 14 days ago at the V3 growth stage #4CropScouts
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This video might give you some extra joy today! . My brother watching a @Palmeiras soccer match and celebrating a goal with his beautiful daughters ⚽️🇧🇷❤️
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Highlights from our #WiscWeeds research with the Ecorobotix 2m ARA Ultra-Precision Sprayer prototype!. We’re impressed by its precision and versatility; herbicide savings have been substantial in our plots. The enclosed spray chamber lets us apply treatments even when wind
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Plot signs, logistics, equipment checks, early mornings, and yes, coffee & donuts. Go behind the scenes of a #WiscWeeds Extension field day with @aalicelazzari and see the teamwork that makes it all happen!
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🎯 Size matters when managing #waterhemp! Effective foliar herbicides work best when this weed is 3 inches or smaller. 🚨 Wait too long, and control drops fast. With heat and moisture, waterhemp takes off quickly!. ⚠️ I know, easier said than done. This spring/summer has been
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Beautiful morning (June 22) at the Arlington Ag Research Station for Dr. Guilherme Sousa Alves to apply POST herbicides in our 15-inch soybean trials. These large-scale studies evaluate how different sensitivity settings of the John Deere See & Spray™ Premium system impact
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All of this is only possible thanks to the vision, dedication, and hard work of an incredible group of individuals who constantly go the extra mile. Truly grateful to work alongside such a passionate, talented, and driven team, the powerhouse behind the 2025 #WiscWeeds program!
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Huge thanks to everyone who joined us for the 2025 Rock County Farm #WiscWeeds Management Plot Tour (06/19)!. We had a fantastic turnout and perfect weather as we showcased our latest field research, including:. • Cover crops as a tool for integrated weed management.•
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The #WiscWeeds team spotted the first flowers in our April-planted soybeans (June 19). For those in Wisconsin who planted soybean early and are planning a POST application of Enlist One + Liberty, now’s the time to get ready, R1 is here or just around the corner! @badgerbean
Liberty, Enlist One, Liberty + Enlist One?!. Check what we are learning from @ZaimUgljic’s #waterhemp management project.
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