UC Rice Blog

Primary Image
Delta rice variety trial
Article

Weedy Rice Meeting

July 18, 2025
By Michelle M Leinfelder-Miles
This article provides information about the upcoming UCCE Weedy Rice Meeting.
View Article
Primary Image
Late watergrass (Left), barnyardgrass (Center), and early watergrass (Right)
Article

Late Season Control Options for Watergrass – 2025 Updates

July 16, 2025
By Whitney B Brim-Deforest, Taiyu Guan
Watergrass (Echinochloa spp.) is the most competitive weed complex in California rice production. These plants can emerge under both continuously flooded and flushed conditions, often resulting in significant yield losses—up to 100% in dry- or drill-seeded systems, and about 50% in water-seeded systems, when…
View Article
Primary Image
Blast leaf
Article

Blast and leaf wetness

July 14, 2025
By Luis A Espino
As the crop starts advancing towards heading, one concern is blast. So far I have not seen any leaf blast. Blast spores need free moisture on the leaves to germinate and infect. Leaf wetness is a good measure of free moisture. Typically, leaf wetness increases during the evening and stays high until early…
View Article
Article

Rice Production Workshop (July 23-24, 2025) - Cancelled

July 14, 2025
We regret to inform you that the Rice Production Workshop originally scheduled for July 23–24, 2025 has been cancelled due to unforeseen circumstances.If you have already paid the registration fee, we’ll be refunding your payment in full. The process is currently underway. If you have any questions regarding…
View Article