Sarah Marsh Janish

Sarah Marsh Janish

Rice Systems Farm Advisor

M.S. Horticulture and Agronomy - Weed Science, University of California, Davis. 2022
B.S. Plant and Environmental Soil Science, Texas A&M University. 2020
Rice, Herbicide resistance, rice weeds

My name is Sarah Marsh Janish, and I am excited to serve as the Rice Farming Systems Advisor for Colusa and Yolo counties. I am based out of Colusa at the Colusa UCCE office. I grew up on a diversified row-crop and orchard farm in Arbuckle and am grateful for the opportunity to serve the community in which I was raised. After completing my undergraduate degree in Plant and Environmental Soil Science at Texas A&M University, I obtained a M.S. in Horticulture and Agronomy at UC Davis, where I worked with Dr. Kassim Al-Khatib in studying weeds and herbicide resistance in rice agroecosystems. I have since worked in rice breeding research and integrative pest management in several row crops in the Upper Gulf Coast region. I am so thrilled to have the opportunity to learn from all of you, and I am excited to partner with the community to craft a research program that can deliver relevant results. I encourage you to reach out with ideas, requests, or questions relating to rice farming as I develop priorities to pursue in this position. 

Please feel free to drop by the Colusa UCCE office or give me a call . I can be reached via email at smarsh@ucanr.edu or telephone at (530) 987-7501.

Primary Image
Screenshot 2025-01-05 at 9.00.16?PM
UC Rice Blog: Article

Thoughts on Rice: Podcast

January 15, 2025
By Sarah Marsh Janish
The University of California Cooperative Extension (UCCE) has launched Thoughts on Rice, a new podcast from the UCCE rice advisors, available on all audio streaming services. This podcast is for growers, PCAs, consultants, and other industry professionals in the rice industry.
View Article
Primary Image
Figure 2. Zembu treated rice plots in 2021. The distinct dark green rice leaves are observed in the Zembu treated plots. The plots with the lighter green are the nontreated and demonstrate the weed pressure in the field.
UC Weed Science (weed control, management, ecology, and minutia): Article

Zembu™: A New Residual Herbicide for Early-Season Weed Control in Water-Seeded Rice

January 21, 2024
By Kassim Al-Khatib, Sarah Marsh Janish
A new herbicide for early-season weed control in water-seeded rice will be available soon. The herbicide active ingredient (a.i.) is pyraclonil, which will be trademarked as Zembu (1.8% a.i.) by Nichino, America Inc. The mode of action is a protox porphyrinogen (PPO)-inhibitor or Group 14.
View Article