- Contributor: Drew Lyon
- Posted by: Gale Perez
Spring canola acreage in Eastern Washington has increased dramatically over the past five years. Much of this increase has been driven by the inability of growers to control multiple herbicide-resistant Italian ryegrass in other crops, such as wheat and pulse crops. A large percentage of the spring canola acreage is planted to glyphosate-resistant (Roundup Ready) varieties. Glyphosate has provided excellent control of Italian ryegrass in glyphosate-resistant spring canola. How long it will remain an effective herbicide for Italian ryegrass is an open question.
Over the past two years (2022 and 2023), we conducted field studies to evaluate the benefits of using herbicides with different...
- Author: Jaspreet Sidhu
- Posted by: Gale Perez
Jaspreet Sidhu is the UC Cooperative Extension Vegetable Crops Farm Advisor in Kern County.
Glyphosate, a popular non-selective herbicide is widely used in agriculture to provide cost-effective, broad-spectrum weed control in more than 100 crops. It is also one of the most heavily used herbicides in Kern County in crops such as almonds, grapes, alfalfa, etc. The proximity of potato fields planted to glyphosate treated areas/crops increases the potential for damage to potato crop due to herbicide drift. The most common ways that potatoes can be exposed to glyphosate are through...
/span>- Author: Travis Bean
- Author: Josh S. Davy
- Author: Guy B Kyser
- Author: Elise Gornish
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From the California Agriculture 75(2):83-89. https://doi.org/10.3733/ca.2021a0011
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Abstract
The invasive annual grasses barb goatgrass (Aegilops triuncialis L.) and medusahead (Elymus caput-medusae L.) are widespread in western states and present management challenges on grasslands. To develop an integrated management strategy for these species, we treated sites in five pastures in Mendocino County, comparing combinations of intensive sheep...
- Information provided by: Karey Windbiel-Rojas
- Posted by: Gale Perez
Whack Out Weeds! and EcoMight-Pro contain glyphosate, bifenthrin and permethrin and CDFA has issued a stop order for use on organic farms in the state of California. The press release is shown below.
STOP USE NOTICE ON ORGANIC PESTICIDE PRODUCTS WHACK OUT WEEDS! and ECOMIGHT-PRO
July 30, 2021 - The California Department of Food and Agriculture's (CDFA) State Organic Program (SOP) is issuing this Stop Use Notice regarding the use of W.O.W. (WHACK OUT WEEDS!) and ECOMIGHT-PRO products manufactured by EcoMight LLC. These products are herbicides that are marketed and labeled as organic.
W.O.W (WHACK OUT WEEDS!) and...
- Author: Brad Hanson
- Author: O. Adewale Osipitan
Article also published in California Weed Science Society Journal (March 2021 issue)
-Brad
Glyphosate is one of the most commonly used herbicides in orchard crops in California both in terms of treated acres and amount of active ingredient applied. Weed managers are generally familiar with the attributes of glyphosate as a postemergence herbicide. Duke and Powles (2008) published an article in Pest...