Mendocino County
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Waterprimrose shows disturbance-related dispersal along the Russian River

Uruguay waterprimrose

It may be widely understood that most aquatic and wetland weeds are spread by water currents, but the patchwork of colonizing exotic plants can be puzzling. Why do weeds establish in some places but not others? Generally, the number of propagules (seeds...

Posted on Monday, July 16, 2018 at 8:50 AM

Weed ID: Traditional Tools to Smartphone Apps

Weeds of CA

Why is weed identification important? Simply stated, because not all management strategies are equally effective against all weed species. The weed community present in a given field, orchard, or vineyard may be comprised of species that are...

Posted on Sunday, July 15, 2018 at 5:04 PM

Giant hogweed in the news

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Invasive plants don't get much coverage in the news, especially at the state and national level.  As I've argued previously, this lack of media attention is a problem when it comes to motivating the public and political players into proactively...

Posted on Monday, July 9, 2018 at 4:46 PM

Looking for the right herbicide for Egeria

Brazilian waterweed (Egeria densa) growing in a 40-gallon mesocosm at the USDA Aquatic Weed Research Facility, Davis. Photo by Christy Morgan, USDA.

We are doing a trial of eleven aquatic herbicides for their potential to control Brazilian waterweed (Egeria densa). The active ingredients being tested are bispyribac sodium, carfentrazone, copper-ethylenediamine complex, diquat, dipotassium salt of...

Posted on Friday, July 6, 2018 at 1:42 PM

Register now for the 2018 Rice Production Workshop!

An in-depth workshop that covers the principles and practices of rice production: Tuesday, August 7, 2018 8:30–3:00 PM Lundberg Family Farms 5311 Midway Richvale, CA 95974 Program: 8:30 Sign in, pick up class materials 9:00 Introduction and...

Posted on Tuesday, July 3, 2018 at 3:56 PM

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