- Author: Justin Valliere
Keep an eye out for this potential problem weed in southern California: Stipa capensis. First reported in 1995 in Riverside, this species is native to the Mediterranean and has established in the Coachella Valley of the Sonoran Desert. It is spreading rapidly in the Palm Springs area, forming dense monocultures. Confirmed reports have recently been made in Borrego Springs and Point Mugu. It has the potential to promote fire in California desert ecosystems and may also suppress native wildflower abundance in the areas it invades.
How to spot...
- Posted by: Gale Perez
Congratulations to UC Davis weed science graduate student Erika Escalona (Fennimore Lab) for winning 1st place in the student poster presentation category at the 2024 California Plant and Soil Conference on Feb. 6-7, 2024 in Fresno, CA.
* * * *
Evaluating Bacterial Diversity in Steam Fumigation Treatments in the Salinas Valley's Lettuce Fields
Erika Escalona, University of California, Davis; Steve Fennimore, UC Cooperative Extension, Weed Specialist, Salinas; Department of Plant Sciences, University of California, Davis; J.S. Rachuy, Department of Plant Sciences, UC Davis; Cristina Lazcano, Department of Land, Air and...
California rice growers will have a new herbicide available this year: Cliffhanger™, manufactured by Gowan Company. The active ingredient is benzobicyclon, which is the same as one of the two active ingredients in the currently registered herbicide, Butte®. Cliffhanger™ is a soluble liquid formulation (SC) which can be applied by ground-rig or airplane, including as a direct-stream application into the water. In contrast, Butte® is a granular formulation, as a pre-formulated mixture of benzobicyclon and halosulfuron. To use either product, applicators must attend a training and be certified.
Dates for the training are posted on the California Rice Commission calendar
- Posted by: Gale Perez
From the Weed Science Society of America (WSSA) Graduate Student Organization newsletter (Feb. 2024)
* * * * * *
Graduate Student of the Month
Deniz Inci, Ph.D. Candidate with the Al-Khatib Lab at UC Davis, is the Weed Science Society of America (WSSA) graduate student of the month.
What university do you attend and what is your research focus?
I am at the University of California, Davis, where I have focused on evaluating a suite of tools to improve season-long weed management in California rice...
White water fire (Bergia capensis) was found in September of 2023, by the Butte County Agricultural Commissioner's office in a rice field in Butte County. The weed was identified by the California Department of Food and Agriculture (CDFA.) It is the first find of this weed in California, and possibly in the United States. It is native to Africa, southern China, and tropical Asia, and it is known to be in rice fields in Europe, Central and South America, as well as the Caribbean. It was likely transported in seed to rice-growing areas and has been established in those locations for many years.
In Butte County, the weed was only found in one rice field, and the Agricultural...