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

I visited an onion field where I saw this interesting emergence pattern with annual bluegrass (Poa annua L.). Onion beds are listed in east-west orientation (as seen in pictures). We can see annual bluegrass emergence only on the south facing slopes and none on bed-tops or north facing slopes.

Here are a couple of articles from our friends at California Ag Today: New Regs on Pesticide Spraying Near Schools Begin Jan.

UC Rice Advisor Whitney Brim De-Forest is using a spray chamber to apply a foliar organic fertiliser to rice. She uses the chamber to make sure that they are applying a precise amount of the product. Thanks to @balde.hamady for the video! https://www.facebook.

Over the past year and a half, I have been conducting research and extension with weedy (red) rice (Oryza sativa L.), which has re-emerged as a pest in California rice fields. What makes this plant so interesting is that it is the exact same species as cultivated rice (also Oryza sativa L.).

Patrick Cavanaugh from California Ag Today interviews UC Cooperative Extension Specialist Brad Hanson about weed control. https://californiaagtoday.