Kurt Vollmer

Extension weed management specialist at the University of Maryland.

[Kurt Vollmer @MDAgWeeds]

Over-the-top dicamba products are back. Before you spray, watch our latest video covering key updates to application limits, VRAs, and endangered species protections.🌱@UMdExtension

[GROW.IWM @GetRidOfWeeds]

Use the new GROW Check My Herbicide Plan tool to see how many EFFECTIVE modes of action are in your tank this spring.

You might be surprised to learn how herbicide resistance, pre-mix product rates and other sneaky factors are undercutting your modes of action!

Learn more here: https://t.co/je6bA7DTp4

#growiwm #integratedweedmanagement #farming #agriculture #corn #soybean #cotton

[Kurt Vollmer @MDAgWeeds]

Heads up, growers: Syngenta will stop making Gramoxone by end of June. Supply should cover 2026, but plan now. If you rely on paraquat, check alternative products and read labels closely—use patterns and crop approvals can vary. https://t.co/ds92ZGxwoP

[GROW.IWM @GetRidOfWeeds]

A new webpage (https://t.co/K1Pl6mfnTn) from the Soy Checkoff’s Take Action program helps farmers learn which herbicides contain new requirements for the Endangered Species Act – and how to navigate those new labels.

[Michael Flessner @VTAgWeeds]

Controversial Dicamba Herbicides Receive 2-Year Registration https://t.co/O6QOgzr009

[WSSA @WorldofWeeds]

Field trials conducted in KS & IL show that smart sprayers equipped with #AI can help reduce foliar herbicide use & costs. This research is featured in a new article in #WeedScience.

🔗: https://t.co/Hj2XT6AS6M

#invasiveplants #technology #crops #foodproduction #agriculture

[Kurt Vollmer @MDAgWeeds]

🎓 Undergrads & recent grads — we’re hiring!

Looking for a Communications Intern with strong digital content skills to help tell the story of innovative farming + pest management practices 🌱📲

Apply here 👉 https://t.co/1hyK2mSwWH
#Internship #AgComms

[GROW.IWM @GetRidOfWeeds]

How many effective herbicide modes of action are you really using in your crop rotations? The University of Wyoming’s Herbicide Resistance Risk Calculator by @WyoWeeds can help you find out, and it will explain your herbicide plan’s costs and effectiveness against target weeds.

Learn more about the calculator and how to use it here: https://t.co/BGimvYRoDw

#growiwm #integratedweedmanagement #farming #agriculture #herbicideresistance #weedcontrol

[GROW.IWM @GetRidOfWeeds]

What do Palmer amaranth, kochia, and common lambsquarters have in common? They were all ranked the top three most troublesome weeds by the WSSA's annual weed survey for U.S. and Canadian farmers across range of 13 broadleaf crops. Learn more about the survey and how your problem weeds ranked here: https://t.co/pZIO9ZBuZk

#growiwm #integratedweedmanagement #agriculture #farming #weedcontrol

[Kurt Vollmer @MDAgWeeds]

Loved chatting with @FarmersforSoil about using cover crops for weed suppression. More to come!

#covercrops
#weedmanagement

📸 Dwayne Joseph

[Crop Protection Network @CropNetwork]

Selecting the right adjuvant and adjuvant rate can be critical to the success or failure of an herbicide. Not using an adjuvant, using the wrong adjuvant, or using an unnecessary adjuvant can be costly due to reduced weed control, crop damage, and/or extra expense over many acres.

Check out the Adjuvants with Herbicides article at https://t.co/l4zy74KmzO.

From @TravisLegleiter @PUweeds @NDSUWeeds @lancasarah @WiscWeeds @mjanders1 @MichaelFlessner +others.

@WorldofWeeds #weeds @NE_WeedSci @KStateWeedSci

[Northeastern Weed Science Society @NE_WeedSci]

Join us in Hershey, PA for the 2026 Northeastern Weed Science Society Meeting!

Early Bird Registration through Dec. 15, 2025

Register & book your stay here: https://t.co/KaCTsxczMD
#NEWSS2026 #WeedScience #Conference #HersheyPA

[🇨🇦🇺🇸 Lynn Sosnoskie 🇺🇸🇨🇦 @LynnSosnoskie]

Response of Pumpkin to Over-the-Top Applications of S-Metolachlor https://t.co/pQ0SeoZ18f

[GROW.IWM @GetRidOfWeeds]

Seed impact mills are devices that pulverize weed seeds exiting a combine at harvest, and research shows that they can kill up to 98% of most of the weed seeds they encounter! Learn more about this harvest weed seed control device in our latest recap, and read the original articles here: https://t.co/GRlJoeL1cC, https://t.co/ugl8wGQG43

@redekopmfg @VTAgWeeds #growiwm #integratedweedmanagement #seedimpactmills #harvestweedseedcontrol

[Rodrigo Werle @WiscWeeds]

Folks often assume #waterhemp escapes are late-emerging. In reality, many were already established but not controlled at POST.

The plants pictured were >4” tall at POST and survived Enlist + Liberty.

[Rodrigo Werle @WiscWeeds]

Here’s one reason #waterhemp keeps winning:

📸 Drown-out spot in 2024 (left): a few weeds went to seed.

📸 Same spot in 2025 (right): now a heavy waterhemp patch.

In another year, waterhemp will likely take over the entire field and continue to spread to others via harvest, tillage, and planting equipment.

This was preventable. Small effort on these spots in 2024, big ROI in 2025 and beyond: No seed, no weed.

The same applies to infestations along field margins.

[Kurt Vollmer @MDAgWeeds]

Watch out for those pigweeds! Even now, their flower spikes can help you tell the difference between the bad ones and the really bad ones!!! @UMdExtension @MdAgDept

#WeedID #PalmerAmaranth #Waterhemp #CropManagement #AgTips #MarylandAg #LateSeasonScouting

[Kurt Vollmer @MDAgWeeds]

🚜Join us tomorrow from 8:30 am to 1pm at the Wye REC for our Agronomic Crops Field Day!🌽https://t.co/K5uEObrKvO @UMdExtension @marylandgrain

[Kurt Vollmer @MDAgWeeds]

Check out our latest fact sheet on how to incorporate a spring-seeded cereal cover crop for weed management in cucurbit production. https://t.co/UYkq8r0hmP

[Kurt Vollmer @MDAgWeeds]

Palmer amaranth can appear anywhere. Pull it when you see it!