UC Weed Science (weed control, management, ecology, and minutia)

2024 Kearney Field Crops, Alfalfa and Forage Field Day

August 20, 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

In memoriam: Carl Bell

August 8, 2024
By Brad 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

New Product Bulletin :: Loyant® CA

July 3, 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)

Frequent mowing puts poisonous weed into survival mode

June 30, 2024
By Gale Perez
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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PNW778, Italian Ryegrass Management in Inland Pacific Northwest Dryland Cropping Systems

New herbicide resistance resources

June 23, 2024
By Gale Perez
Herbicides are an important tool for the management of weeds in crops but an overreliance on herbicides for weed management has accelerated the development of herbicide-resistant weed biotypes.
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