Ryan Hamberg

Very happy to share our new article available in Weed Research. We compared the morphology, phenology and fecundity of waterhemp cohorts across five canopy types. Results revealed the suppressive ability of spring wheat and oat canopies. onlinelibrary.wiley.com/doi/10.1111/wr…

Continuous-contact weed electrocution (commonly used in orchards) could offer a more flexible way for row crop farmers to zap inter-row weeds, but companies need to better adapt this tech to row crops before you’ll see these machines in corn, soybean or cotton fields. Learn more about ongoing row crop weed electrocution research from Cornell’s Dr. @LynnSosnoskie and Texas A&M’s @Ryan_C_Hamberg and Dr. @MBagavathiannan in this article. growiwm.org/researchers-te…

Our first Student Research Highlight is live on our YouTube channel! If you have video content you'd like to share with the society, send that to communications@swss.ws. youtube.com/watch?v=MjtPJ0… #weedscience #weeds #ryegrass

@WiscWeeds @ZaimUgljic Congratulations @ZaimUgljic !!

This week, @ZaimUgljic successfully defended his PhD at the University of Wisconsin-Madison. Since joining our program in 2022, Zaim has helped plant the seed for an entirely new research direction in our lab, leading our first work on targeted herbicide application technologies. His work, developed through collaborations with partners across academia and industry, has helped us better understand how to optimize these emerging systems for real-world agronomic use. From countless miles across the Midwest chasing field trials, to contributing to multistate research, to mentoring teammates and engaging directly with growers and industry, Zaim’s impact has extended well beyond his own dissertation. A very important chapter of his PhD work was just published Pest Management Science, and we believe it represents a meaningful contribution to the scientific foundation of targeted spray technology: ✅ Targeted herbicide spraying systems: role of nozzle type, number of nozzle activation, nozzle orientation, and boom height on spray coverage and weed control. Ugljic et al (2026) Pest Manag Sci. doi.org/10.1002/ps.706… This work tackles a critical gap, moving the conversation beyond “does it work?” to how do we make it work better? By identifying how application parameters influence spray coverage and weed control, this research helps translate technology into agronomic performance. Zaim has gone above and beyond, as a scientist, teammate, and leader, and his work is already shaping how we think about integrating targeted spray systems into corn–soybean production. A sincere thank you to the #WiscWeeds team, his PhD advisory committee, our collaborators, industry partners, funding organizations, and all those who supported his research and helped make Zaim’s work possible. Excited to see what’s next for you, Dr. Ugljic. Thanks for everything and keep up the great work!

Originally built in the late 1990s, the Borlaug Center greenhouses now have a modern upgrade. The 24,372-square-foot facility features advanced environmental controls, LED lighting, insect containment and automated data tracking to support plant research across the @tamusystem.

Use GROW’s farmer-led webinars and case studies to make sure you’re ready to manage cover crops this season! growiwm.org/six-farmer-vid… #growiwm #integratedweedmanagment #covercrops #agriculture #farming

Resource Alert: Our newest weed page is hot off the press! Visit our new large crabgrass weed page to learn how you can tackle this invasive weed. Shout-out to author Sirwan Babaei from Southern Illinois University–Carbondale! growiwm.org/weeds/crabgras… #growiwm #integratedweedmanagement #weedcontrol #weedID #farming #agriculture

An update regarding the postponement of the upcoming SWSS Annual Meeting. Please do not cancel hotel reservations as we are working with the hotel to adjust any block rooms to the new meeting dates. Stay tuned and stay warm!

Come join our team at the @ISUFieldLab! We're looking for someone with experience operating equipment to lead field operations at the farm. Plot scale research and/or demonstration experience is a plus. The job posting should answer most questions, but feel free to reach out.

Reminder for SWSS 2026 presenters: presentation uploads are due Jan 18 at 11:59 PM. #SWSS #WeedScience #GraduateStudent #Conference

WSSA GSO needs you! MOP: wssa.net/wp-content/upl…

Today is another Weedy Wednesday, a monthly spotlight on weed identification tips from GROW! @Ryan_C_Hamberg, a Texas A&M grad student with @MBagavathiannan, has some quick tips on how to identify yellow nutsedge. #weedywednesdays #farming #agriculture #yellownutsedge

Join WSSA GSO for “More than an Author: Getting Involved in Peer-Reviewed Publishing.” Webinar by Dr. Sarah Ward. Register by Monday, October 27! forms.gle/qWA6Z1eKob4tLx…

Do you want to enhance your proposal writing skills? Join us on October 10, 2025 (12:00–1:00 PM CST) for an engaging webinar. Our speakers will share practical tips and techniques to help you craft stronger proposals and better understand funding priorities. @SouthWeedSciSoc

Today! Be sure to join in!

Resource Alert: Our new yellow nutsedge page has everything you need to know about this perennial weed that's dubbed, "one of the 'world's worst weeds'"! Shout-out to author @Ryan_C_Hamberg, from @TAMUWeedNinjas. growiwm.org/weeds/yellow-n… #growiwm #integratedweedmanagement #farming #agriculture #yellownutsedge

I write speculative fiction (research grants)

Listen up! Ag podcasts for the combine (or grain cart) at cropprotectionnetwork.org/podcasts 🌱War Against Weeds 🌱A Penney for Your Thoughts 🌱I See Dead Plants 🌱Mississippi Crop Situation 🌱Alabama Crops Report 🌱Cotton Specialist's Corner 🌱Arkansas Row Crop Podcast @lancasarah @NDSUWeeds @ISDPPodcast @PenneyPodcast @CyPathology @seanblomgren @baldpathologist @MStateCorn @ScottGraham72 @PrecAgEngineer @TysonRaper @CropdoctorsMs @MSUExtService @AAMUExtension #harvest25

@CropsCover @GetRidOfWeeds @MBagavathiannan @TAMUWeedNinjas @OregonState @zassogroup You are correct. for your question: It would likely take additional passes (more energy) - but I think it depends on which species you are trying to terminate. The lethal threshold varies by species. Soil and plant moisture at termination also matter.

@GetRidOfWeeds @Ryan_C_Hamberg @MBagavathiannan @TAMUWeedNinjas @OregonState @zassogroup The amount of current depends roughly on the number of stems. For a covercrop in the wet Northeast, we expect a lot more stems than in the stand in the picture by termination time. How would that affect the use of the zapper. (A grad student here has one for escaped weeds.)

Cover crops just got electrifying! Researchers in Oregon and Texas are independently testing electrocution as a cover crop termination method. Their early results show that electrocution terminates brown mustard, oats, crimson clover, and peas efficiently, but cereal rye and hairy vetch are trickier to get rid of. Read more here: growiwm.org/could-we-shock… #growiwm #integratedweedmanagement #covercrops #weedelectrocution

Thanks for the spotlight @GetRidOfWeeds ! @tamusoilcrop @TAMUWeedNinjas

I am looking for a Research Technician to join the Turfgrass & Forage Weed Science Lab at NC State. Opportunity to enroll in classes and pursue graduate education while working. If you are interested in weed management research, then consider applying. jobs.ncsu.edu/postings/222913