Butte County
University of California
Butte County

Rice Leaf

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If you would like to receive hardcopies in the mail, send an email with your mailing address to laespino@ucanr.edu

Issue Articles Type Date Added
July 2023 (1,064KB)
  • Testing no-till drill-seeded rice 
  • More rice seed midge during 2023 
  • Weeds in 2023: Wrap up 
  • What’s new in tadpole shrimp research? 
  • Meeting: Organic rice: current research and future needs 
PDF 8/16/23
April 2023 (448KB)
  • Considerations for a late planted year
  • Yields and nitrogen management following a fallow year
  • Certified seed update
  • Stem rot management update
  • Weed management in 2023: what can we expect?
  • New product registrations for 2023
  • Managing rice in a late planted year
  • Meet the new Rice Farming Systems Advisor serving Colusa and Yolo counties
PDF 4/6/23
January 2023 (857KB)

Choosing a Medium Grain Variety - Results of 2022 Variety Trials - Rice Acreage by Variety Report - Effect of Competition by Weedy Rice - 2022 Disease Observations - Insecticides for Armyworm Control - Rice Regulatory Updates

PDF 1/26/23
November 2022 (1,029KB)
  • Looking Back at 2022
  • High Nighttime Temperatures Partially to Blame for Increased Chalk and Decreased Milling
  • 2022 Pest Review
  • New Smart Insect Pest Detection Technology for Agricultural and Food Products
  • Rice Crop Rotation Tool Launched
  • 2022 Delta Rice Recap
PDF 11/9/22
July 2022 (499KB)
  • Getting the Most out of Limited Water
  • Herbicide Susceptibility Survey of Watergrass
  • Germination of Stored Rice Seed
  • Challenges and Opportunities for US Organic Rice
  • Don’t Forget the Rice Field Day!
PDF 7/8/22
April 2022 (469KB)
  • Fertility considerations going into 2022
  • Watergrass control options based on herbicide resistance status
  • Managing tadpole shrimp
  • Determining the herbicide resistance in grower fields is key for successful weed control in rice
  • Updates from the Rice Experiment Station
PDF 4/13/22
January 2022 (1,270KB)

Summary of 2021 rice variety trials - Tadpole shrimp management: moving beyond pyrethroids - Watergrass herbicide screening: 2021 results - Herbicide trial in Delta drill seeded rice

PDF 1/25/22
November 2021 (431KB)
  • Save the Date: 2022 Rice Grower Meetings
  • Managing winter flood when winter flood water is uncertain
  • 2021 California Crop Improvement Rice Seed Report
  • Weedy rice survey and season wrap up
  • Arthropod and disease update
PDF 11/5/21
July 2021 (378KB)

2021 Planting Overview - Propanil 101 - Mid-season arthropod and disease update - Weedy Rice Workshop: 2021 - Rice Field Day

PDF 7/8/21
April 2021 (792KB)
  • Fertility considerations going into 2021
  • Factors affecting crop rotation for rice growers
  • Weeds to watch out for in 2021
  • Herbicide trial in Delta drill-seeded rice
  • Tadpole shrimp: how resistant are they to pyrethroids?
  • Looking for M-210 fields in Glenn and Butte counties
PDF 4/6/21
January 2021 (668KB)

Summary of 2020 UC Rice Variety Trials - 2020 Seed Update, Red Rice Focus - What's New for Thiobencarb - Preliminary Herbicide Screening in rice on Watergrass Species

PDF 1/21/21
Watergrass seed request (482KB)

The UCCE Rice Team is conducting a field survey to collect watergrass samples over the next few weeks. The samples will be used to develop chemical and non-chemical management plans for watergrass.

We are looking for all types of watergrass: "mimic", early watergrass, late watergrass, barnyardgrass, and the new species that we started seeing a couple of years ago. See attached flyer for pictures.

For more information, and if you are interested in having us come out and sample your field(s), please contact Whitney Brim-DeForest (wbrimdeforest@ucanr.edu), or call 541-292-1553.

PDF 8/13/20
June 2020 (809KB)

What do you get from an NDVI reading - Effect of armyworm defoliation on rice yield - New California rice herbicide: RebelEX

PDF 6/23/20
April 2020 (3,605KB)

Contents: Rice variety trials - Fungicide treatment timings - Potassium fertilizer needs - Weeds to watch out for in 2020 - Herbicide trial in Delta drill-seeded rice.

PDF 4/2/20
August 2019 (2,492KB)

Sign up for the 2019 UCCE Rice Yield Contest - Collecting Weed Seeds for Herbicide Resistance Testing - 2019 Armyworm Update - Weedy Rice Scounting and Reporting - Alligatorweed Spotted in Butte County

PDF 8/16/19
June 2019 (355KB)

Managing Nitrogen Fertilizer When the Weather Does Not Cooperate - A Few Thoughts on Disease Management for 2019 - Weed Management: 2019 Season

PDF 6/10/19
March 2019 (5,091KB)

Summary of 2018 University of California Rice Variety Trials - Tillage for weed management in a good water year - Weedy rice: 2018 season wrap-up and looking ahead for 2019

PDF 3/12/19
August 2018 (870KB)

• UCCE Rice Field Day
• 2018 UCCE Rice Yield Contest
• New Watergrass Species: Be on the lookout!
• Testing for Suspected Herbicide Resistance
• Management of stem rot

PDF 8/20/18
July 2018 (437KB)
  • UCCE Rice Production Workshop
  • A weed problem all rice growers should be aware of: Weedy Rice
  • Another field with the suspected new weed species: Sutter County!
  • Planting progress for rice in 2018
  • Weed Control in Rice: Matching Herbicides with the Weeds of Your Field
PDF 8/20/18
April 2018 (498KB)
  • Upcoming Meetings
  • Lookout for New Weed Species!
  • Update on Early Season Arthropod Management
  • Fertility Management
  • 2018 Yield Contest
  • Armyworms 2018: Get Ready
  • Useful Websites
PDF 8/20/18
November 2017 (1,177KB)
  • Upcoming Meetings
  • 2017 Season Wrap-up
  • 2017 Delta Rice Recap
  • Weedy Rice Update 2017
  • Armyworms in 2017
  • Useful Websites
PDF 8/20/18
August 2017 (215KB)
  • 2017 Rice Field Day
  • Rice Disease Update
  • Time for Weedy Rice Scouting!
  • Herbicide Resistance in Rice UCCE Yield Contest
  • 2nd Annual Rice Weed Course
PDF 8/20/18
June 2017 (521KB)

• Save the Dates!
• Cass Mutter Retires!
• Nitrogen and Water Management
• Armyworms Revisited
• How to Select a Follow-up Herbicide
• 2017 Yield Contest
• Grow Rice? Help Birds!
• Useful Websites
• Rice Weed Course

PDF 8/20/18
April 2017 (225KB)
  • Managing late planted rice 
  • Land preparation 
  • Varietal selection 
  • Water management 
  • Fertility management 
  • Weed management 
  • Pest management 
  • No-till rice
  • FAQ
PDF 3/26/18
June 2014 (303KB)
  • Midseason Nitrogen Fertilizer 
  • Rice Blast 
  • Management of Propanil Resistant Sedges 
  • Appointed Vice Provost for UC Division of Agriculture & Natural Resources 
  • Bird Habitat Program Continues and Expands
PDF 3/26/18
April 2014 (304KB)
  • Midseason Nitrogen Fertilizer 
  • Rice Blast 
  • Management of Propanil Resistant Sedges 
  • Appointed Vice Provost for UC Division of Agriculture & Natural Resources 
  • Bird Habitat Program Continues and Expands
PDF 6/20/18
April 2012 (723KB)
  • Managing Late Planted Rice,
  • Winged Primeose Willow (WPW)
PDF 9/13/12
August 2011 (379KB)
  • Rice Field Day information  August 31, 2011
  • Armyworms
  • Rice Blast
  • Planning Harvest
  • Using a Desiccant to Accelerate Dry Down


PDF 8/18/11
June 2010
  • Throw Away the Calendar
  • Well, Just how Cold was May?
  • Midseason Nitrogen Fertilizer
  • Managaing Weed Populations to Protect Against Herbicide Resistance
PDF 9/13/12
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