UC Weed Research & Information Center

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Article

Late Rains, Small Plants, Fast Phenology

April 4th, 2025
By Chris J McDonald
Originally Posted April 1, 2025. This year in Southern California the rainy season got off to a late start. Southern California has received about one half of the average precipitation total as of this writing (and that's not an April fool's joke). Last year we had over 50% more rainfall than the…
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Article

webinar video on electric weed control in organic perennial crops

April 2nd, 2025
By Bradley Hanson
A quick repost to share a link to a recent January 14, 2025 webinar on Electric Weed Control in Organic Perennial Crops. The webinar was part of a multi-state research and extension project that includes researchers from Oregon State University, Cornell University, and UC Davis and outreach support from…
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Article

WeedCut: BMPs for herbicide application techniques

April 2nd, 2025
By Bradley Hanson
Sharing a recent post from the California Invasive Plant Council (Cal-IPC) about a new page on the WeedCUT online decision support tool. -Brad--------------------------------------------------------------------New WeedCUT Feature: BMPs for Herbicide Application Techniques   Confused about…
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Article

Best Practices for Using Glufosinate in Hops

January 16th, 2025
By Bradley Hanson
Reposted from the "Weeders of the West" blog with author's permission. Marcelo Moretti summary of research on glufosinate best practices in hops (direct link to article). -Brad Posted by jenna.osiensky | January 9, 2025 Marcelo L.
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Article

Stinknet spreads because it’s a difficult weed

January 15th, 2025
By Chris J McDonald
Stinknet (Oncosiphon pilulifer) is an annual weed spreading aggressively in the southwestern US. This species was first found in North America the early 1980's in Southern California and it continues to spread aggressively in California and Arizona and a few populations have been found in Nevada.
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Website
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WeedCUT (Weed Control User Tool) expands!

January 8th, 2025
By Thomas J Getts
Back in 2021 the California Invasive Plant Council (CAL IPC) and UC IPM launched the online decision support tool WeedCUT for wildland weed mangers to help assist making management decisions for wildland weeds.
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chemigation fig1
Article

Large scale demonstration of chemigated rimsulfuron treatments for branched broomrape control in California processing tomato

November 22nd, 2024
By Bradley Hanson
Large scale demonstration of chemigated rimsulfuron treatments for branched broomrape control in California processing tomato Matthew Fatino, Brad Hanson Plant Sciences Department, University of California, Davis Branched broomrape is an obligate holoparasite that can attach to a wide variety of agr...
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Article

EPA’s Final Herbicide Strategy for ESA: What Could Change

October 21st, 2024
By Bradley Hanson
Last week, I shared a press release about theEPA's educational materials toolbox related to pesticides and the Endangered Species Act. Today, I wanted tofollowup with another "explainer" document from the Weed Science Society of America about the current version of the Herbicide Strategy.
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Article

2024 Kearney Field Crops, Alfalfa and Forage Field Day

August 20th, 2024
By Nicholas E Clark
No cost to attend! All are welcome. Interactive field demonstrations for best integrated weed management practices will be featured this year! To view the agenda, click or follow this link: https://ucanr.edu/sites/kingscounty/files/401656.pdf Pre-registration helps us plan lunch.
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Carl Bell obit
Article

In memoriam: Carl Bell

August 8th, 2024
By Bradley Hanson
Carl Bell, a long-time member and leader of the California weed science community passed away on July 31, 2024.
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Cattail control with Loyant® CA at 1.33 pint - A treated plot at 14 days after herbicide application in 2023
Article

New Product Bulletin :: Loyant® CA

July 3rd, 2024
By Kassim Al-Khatib
A recommendation bulletin has been released for florpyrauxifen-benzyl (Loyant CA, Corteva Agriscience LLC, Indianapolis, IN, USA) to control cattail plants in California rice fields and permitted under FIFRA Section 2(ee). Cattail (Typha latifolia L.
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Due to plant defense mechanisms, the flowers of silverleaf nightshade (Solanum elaeagnifolium) are consumed less by natural predators like this tobacco hornworm (Maduca sexta) if the plant is frequently mowed. (photo credit: Alejandro Vasquez)
Article

Frequent mowing puts poisonous weed into survival mode

June 30th, 2024
FAYETTEVILLE, Ark. A study of the effects of mowing on a common weed has found that what doesn't kill you can make you stronger. A study published in Nature's Scientific Reports has found that frequent mowing of Solanum elaeagnifolium may help create a superweed.
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Welcome to the Weed RIC

Please visit the main

UC Weed Research and Information Center
website at: https://wric.ucdavis.edu

The UC Weed Research and Information Center (Weed RIC) is an interdisciplinary collaboration that fosters research in weed management and facilitates distribution of associated knowledge for the benefit of agriculture and for the preservation of natural resources.

Employment opportunities

Ecological Pest Management Program Specialist
Company: Community Alliance with Family Farmers (CAFF)
Location: Davis, CA
Date Posted: 12/1/2020
Closing Date: 12/5/2020

 

 

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