UC Weed Science

I was out in the field today and drove by this fallow field and did two things. First, since I'm a weed scientist, I stopped to take a photo of this weedy streak. Second, because I know the site manager and know he hates weeds, I called to give him a hard time about "missing one".

Stinknet (Oncosiphon piluliferum, aka globe chamomile) is a winter annual that is spreading across Southern California and poses threats to wildlands, rangelands and agricultural areas. Stinknet was first found in western Riverside County in the early 1980's.

JohnsonGrass-JG (Android) and JG-JohnsoGrass (Apple) are apps for your tablet or smartphone that provided useful information about the biology, identification and management of Johnsongrass [Sorghum halepense].

UNmark your calendar... The following events have been CANCELLED: Diagnosing Herbicide Symptoms 2020 course July 14-15, 2020 UC Davis Weed Day 2020 July 16, 2020 UC Davis Aquatic Weed School 2020 Sept.

Here's part 3 of our training videos: Weed Identification. We've broken it up into three smaller parts for easier viewing.