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

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.

While most Californians are staying home to slow the spread of the novel coronavirus, California farmers, farmworkers and other agricultural professionals are out in the fields and packing houses working to produce food.

Last summer, I was called out to view what appeared to be a herbicide drift incidence in a commercial tomato field. The leaves of affected plants were distorted with cupping and twisting that is characteristic of the growth regulator herbicides such as 2,4-D and dicamba (Figure 1).