- Author: Bradley Hanson

Sharing a link to an upcoming seminar on a broad screening of annual bluegrass (Poaannua) resistance to herbicides. This is related to aUSDA Specialty Crop Research Initiative grant called "ResistPoa".
From Weed Science Society of America press release:
Annual bluegrass (Poa annua) is a common and troublesome weed in turfgrass and other landscapes. Its invasive biology and acquired herbicide resistance challenges turfgrass managers by increasing costs and compromising expected outcomes. The USDA-SCRI (Specialty Crops Research Initiative) funded ResistPoa project (www.resistpoa.org) seeks to characterize the national distribution of...
- Author: Whitney Brim-DeForest
- Author: Taiyu Guan
- Author: Troy Clark
- Posted by: Gale Perez

From the CAPCA Adviser magazine :: June 2022
Whitney Brim-DeForest is a UCCE Rice and Wild Rice Advisor for Sutter, Yuba, Sacramento, and Placer Counties; Taiyu Guan is an Assistant Specialist in UCCE Sutter-Yuba Counties; Troy Clark is a Rice Junior Specialist for UCCE Butte County.
Introduction
In California rice, herbicide resistance has been documented in Echinochloa spp. since the early 2000's. Recent reports of uncontrolled grasses, as well as possible new species or biotypes have precipitated renewed...
- Author: Kassim Al-Khatib
- Posted by: Gale Perez

From the Rice Notes April 2022 newsletter
Kassim Al-Khatib is the Melvin D. Androus Endowed Professor for Weed...
- Author: Jose Luiz Carvalho de Souza Dias
- Author: Nicholas Clark
- Author: Konrad Mathesius
- Author: Sarah Light
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Common chickweed (Stellaria media) (Figure 1) is a winter annual found throughout California and considered to be one of the most common broadleaf weeds infesting cereal crops (also referred as small grains) in the state (Wilen 2006). Herbicides can provide effective control of chickweed; however, overreliance on a single herbicide (or group of herbicides with the same site of action), is likely to result in resistance to that herbicide (or group of herbicides) (Tranel and Wright 2017). Even though herbicide-resistant common chickweed populations have not been confirmed in California, lack of effective control with post-emergence applications of the ALS-inhibiting herbicides pyroxsulam (Simplicity) and tribenuron (Express...
- Author: Marcelo Moretti
- Posted by: Gale Perez

From the Weeders of the West (WoW) blog ∴ March 11, 2021
Marcelo Moretti is a Professor in the Dept. of Horticulture at Oregon State University and an alumnus of UC Davis and California State University, Fresno.
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Managing...