- Author: Rebecca Ozeran
Several months ago, I got a question about weeds in an irrigated pasture. The mystery plants were slowly but surely taking over a significant proportion of the pasture, and the owner asked me to visit the property to identify the plants and options to control them.
A brief detour in my story, for important context: Before I visit any property, I map it so I know how to get to their entrance road – which is often a dirt road that doesn't show up correctly on the standard view in Google Maps. To make sure I know what I'm looking for, I switch to satellite view to find the necessary roads.
Because I'm typically looking for roads and not looking at landscapes, I got a pleasant surprise when mapping this property. I...
- Author: Karey Windbiel-Rojas
- Posted by: Gale Perez
The UC Statewide Integrated Pest Management Program's website contains many useful features to help identify pests and problems in the garden and home. One such feature is the Weed Gallery, which contains hundreds of images and management tips for more than 150 common weeds found in California.
If you don't know what weed you are dealing with, the gallery will help you identify the plant using visual characteristics. First, narrow your search by selecting the weed category—broadleaf, grass, sedge, or aquatic plant (Figure 1). You will then see a collection of photos in that...
- Author: John Madsen
A new invader was found in the Sacramento-San Joaquin River Delta (hereafter “Delta”) by California State Parks, Division of Boating and Waterways (“CDBW”). The new weed is Australian ribbonweed, Vallisneria australis S.W.L. Jacobs and Les. First described as V. gigantea, the taxonomic name has been revised to V. australis (see photos). It has multiple common names, including ribbonweed, eel grass, and others. Native to Australia, it has been spread to New Zealand, Europe, and North America. Ribbonweed is widely sold in both aquatic gardening and aquarium trades.
Ribbonweed forms fertile seed pods, but the predominant form of spread is vegetative by stolon fragments. It forms...
- Posted by: Gale Perez
If you missed the Managing Weeds in Grasslands and Rangelands 2021 online event (Oct. 19, 2021 • 9 AM-12 noon PST), you're in luck. We have the recordings of each presentation here.
Managing Weeds in Grasslands and Rangelands (2021)
Moderator • Whitney Brim-DeForest, Sutter-Yuba County Director and Rice Advisor, UCCE Sutter-Yuba, Placer, and Sacramento Counties
UC Weed RIC YouTube channel
INDIVIDUAL...
- Author: Whitney Brim-DeForest
- Posted by: Gale Perez
Whitney Brim-DeForest is the UC Cooperative Extension County Director for Sutter and Yuba counties and the Rice and Wild Rice Advisor for Sutter, Yuba, Capitol Corridor MCP, Placer, and Nevada counties.
In 2020, we conducted a small screening with a set of 10 watergrass samples (collected in 2018) from across the valley, trying to see if we could get an idea of what herbicides controlled the different species/biotypes. The results from those 10 samples indicated that Clincher, propanil, and Regiment, as well as Cerano, had the best...
