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

Ten years ago, Guy Kyser wrote an excellent blog on the identification of Northern California's Big Three invasive thistles.

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.

Pistachio production has been expanding, particularly into marginal soils with high salts, boron, and even sodic conditions. One plant that is endemic to these conditions, alkaliweed, has been reported in these orchards.

Do you want to do work that matters for your community? Do you want to be part of an enthusiastic, dynamic team working to improve Yolo County's natural and working lands?

Brake On! is a preemergence herbicide registered in blueberry and other horticultural crops in Oregon and Washington but not in California. Fluridone, the active ingredient of Brake On! inhibits carotenoid biosynthesis in the phytoene desaturase enzyme step.