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

Branched broomrape hand weeding and heat treatmentPershang Hosseini, Magdalene Burgess, Rohith Vulchi, Ni Tang, Brad Hanson (UC Davis) IntroductionBranched broomrape (Phelipanche ramosa) is an obligate root parasitic weed that can affect a wide range of crops, most notably processing tomato in…

The California Weed Science Society (CWSS) publishes a twice-yearly "CWSS Research Update and News" newsletter as one of the society's publications.  The July 2025 issue just went online and is available here: https://cwss.org/wp-content/uploads/2025/07/CWSS_Research_Update-July-2025.pdf This issue…

My name is Mandeep Singh, and I’m honored to serve as the Agronomy Advisor for Sacramento, Solano, and Yolo counties, based at the UCCE Capitol Corridor office in Woodland. I grew up on a farm where my family raised diversified row crops and livestock. I obtained my bachelor’s and master’s degrees in…

Branched broomrape (Phelipanche ramosa) is an invasive parasitic plant that poses a significant threat to California’s processing tomato industry. Known for its ability to attach to and draw nutrients from host roots, this pest can cause yield losses and trigger strict quarantine measures in California…

Branched broomrape (Phelipanche ramosa) continues to challenge California’s processing tomato industry, particularly in the Sacramento Valley. As a parasitic plant that attaches to tomato roots, its presence threatens both yield and export market access. In a recently published study in Weed Technology, we…