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

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Figure 1. Toxic perennials include curly dock (Rumex crispus) and larkspur (Delphinium spp).

Managing toxic plants

August 6, 2023
Some plants thrive even in dry years, while others need wet years to really blossom. It's no surprise, then, that this year the University of California Cooperative Extension (UCCE) Fresno office has received several inquiries about potentially toxic plants and how to deal with them.
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Weed Science School 2023

EVENT :: Weed Science School 2023

July 28, 2023
Don't miss the early-bird fee (ends 8/1/2023) Most of us learn best by doing, which is why Weed Science School 2023 promises to be better than ever this year.
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Azolla pinnata

Azolla in the reservoir?

July 18, 2023
By John A Roncoroni
There have been several recent questions about dealing with a plant floating in reservoirs. Here's Weed Scientist Emeritus John Roncoroni's response to them. * * * * * * Pacific Mosquitofern, (Azolla filiculoides) often referred to as Azolla, is native to California.
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