Thoughts on Rice

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Whitney Brim-Deforest and Sarah Marsh sit down to talk about herbicide resistance in California rice. Herbicide resistance is continually quoted as a primary concern among rice producers and researchers. Due to a myriad of reasons, there are very few chemistries available for weed control in CA rice; among these, herbicide resistance has been reported in all but the most recent.

Upcoming Events!

• Annual Rice Field Day on August 28
• Rice Pest Management Course on September 4 *registration required*

Rice Herbicide Resistance Resources

Rice Rotation Calculator

Tracking Herbicide Resistance in Rice Weeds

Rice Herbicide Resistance Submission Form

Protocol for Collecting Seeds for Herbicide Resistance

Other Resources

UC Rice Blog

UC Agronomy - Rice

Rice Briefs (Colusa/Yolo)

Rice Notes (Yuba-Sutter)

Rice Leaf (Butte/Glenn)

Rice in the Delta

Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is the law. Find out more at ipm.ucanr.edu.

The views, thoughts, and opinions expressed are the speaker's own and do not represent the views, thoughts, and opinions of the University of California. The material and information presented here is for general purposes only. The "University of California" name and all forms and abbreviations are the property of its owner and its use does not imply endorsement of or opposition to any specific organization, product, or service.

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Today Whitney Brim-Deforest and Sarah Marsh will be sitting down to talk about weedy rice in California. Weedy rice is the same species as cultivated rice, Oryza sativa, which contributes to the difficulty in controlling it; any herbicide that would kill weedy rice would also hurt the crop. Weedy traits of weedy rice including seed shattering and long dormancy. What that means is that the seeds fall off the panicle really easily and can remain dormant in the soil seedbank for years before germinating.

Upcoming Events!

• Annual Rice Field Day on August 28
• Rice Pest Management Course on September 4 *registration required*

Weedy Rice Resources
Weedy Rice website
Rice Production Manual - Weed Section
Subscribe to the Weedy Rice Mailing List HERE

Other Resources

UC Rice Blog

UC Agronomy - Rice

Rice Briefs (Colusa/Yolo)

Rice Notes (Yuba-Sutter)

Rice Leaf (Butte/Glenn)

Rice in the Delta


Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is the law. Find out more at ipm.ucanr.edu.

The views, thoughts, and opinions expressed are the speaker's own and do not represent the views, thoughts, and opinions of the University of California. The material and information presented here is for general purposes only. The "University of California" name and all forms and abbreviations are the property of its owner and its use does not imply endorsement of or opposition to any specific organization, product, or service.

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UC ANR is an equal opportunity provider and employer

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Welcome to our first mini-episode, which we're referring to as "From the Field"!

Luis Espino gives some quick tips regarding the current status of blast in the fields and the first reported sighting of blast in Glenn County

Upcoming Events!

• UCCE Hedgerow Demonstration Day on August 14
• Annual Rice Field Day on August 28
• Rice Pest Management Course on September 4 *registration required*

Other Resources

UC Rice Blog

UC Agronomy - Rice

Rice Briefs (Colusa/Yolo)

Rice Notes (Yuba-Sutter)

Rice Leaf (Butte/Glenn)

Rice in the Delta

Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is the law. Find out more at ipm.ucanr.edu.

The views, thoughts, and opinions expressed are the speaker's own and do not represent the views, thoughts, and opinions of the University of California. The material and information presented here is for general purposes only. The "University of California" name and all forms and abbreviations are the property of its owner and its use does not imply endorsement of or opposition to any specific organization, product, or service.

Support the show

UC ANR is an equal opportunity provider and employer

Let us hear from you!

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Together, the UCCE Farm Advisors seek to provide relevant, topical research-backed information relating to CA rice production.

Today Luis Espino and Sarah Marsh will be talking about Rice Armyworm Monitoring Program and the second generation of armyworms in rice. 

Two true armyworm generations occur in rice; moths fly in spring and early summer, laying eggs in rice fields and surrounding vegetation. The larvae that emerge feed on rice foliage. A second moth flight occurs in mid-summer, followed by larvae feeding on rice foliage and panicles.

Upcoming Events!

• UCCE Hedgerow Demonstration Day on August 14
• Annual Rice Field Day on August 28
• Rice Pest Management Course on September 4 *registration required*

Armyworm Resources

CA Armyworm Trapping Network in Rice

UC IPM - True Armyworm in Rice

Other Resources

UC Rice Blog

UC Agronomy - Rice

Rice Briefs (Colusa/Yolo)

Rice Notes (Yuba-Sutter)

Rice Leaf (Butte/Glenn)

Rice in the Delta

Feedback Poll

Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is the law. Find out more at ipm.ucanr.edu.

The views, thoughts, and opinions expressed are the speaker's own and do not represent the views, thoughts, and opinions of the University of California. The material and information presented here is for general purposes only. The "University of California" name and all forms and abbreviations are the property of its owner and its use does not imply endorsement of or opposition to any specific organization, product, or service.

Support the show

UC ANR is an equal opportunity provider and employer

Let us hear from you!

Together, the UCCE Farm Advisors seek to provide relevant, topical research-backed information relating to CA rice production.

Luis Espino discusses recent rice pests we have seen in the fields; specifically grasshoppers and rodents, which aren't among the most common rice pests.

Upcoming Events!

• UCCE Hedgerow Demonstration Day on August 14
• Annual Rice Field Day on August 28
• Rice Pest Management Course on September 4 *registration required*

Other Resources

UC Rice Blog

UC Agronomy - Rice

Rice Briefs (Colusa/Yolo)

Rice Notes (Yuba-Sutter)

Rice Leaf (Butte/Glenn)

Rice in the Delta

Feedback Poll

Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is the law. Find out more at ipm.ucanr.edu.

The views, thoughts, and opinions expressed are the speaker's own and do not represent the views, thoughts, and opinions of the University of California. The material and information presented here is for general purposes only. The "University of California" name and all forms and abbreviations are the property of its owner and its use does not imply endorsement of or opposition to any specific organization, product, or service.

Support the show

UC ANR is an equal opportunity provider and employer

Let us hear from you!

Together, the UCCE Farm Advisors seek to provide relevant, topical research-backed information relating to CA rice production. Sarah Marsh will be discussing the issue of bakanae in rice. This topic has come up with some frequency in recent weeks.

Upcoming Events!

• UCCE Hedgerow Demonstration Day on August 14
• Annual Rice Field Day on August 28
• Rice Pest Management Course on September 4 *registration required*

Bakanae Resources

 UC Rice bakanae fact sheet

Integrated Pest Management for Rice, Third Edition. UC Agriculture and Natural Resources.

UC IPM for Rice

Compendium of Rice Diseases and Pests. Second Edition. 2018. American Phytopathological Society Press

Invasion and Colonization Pattern of Fusarium fujikuroi in Rice 
Chieh-Yi Chen, Szu-Yu Chen, Chun-Wei Liu, Dong-Hong Wu, Chien-Chih Kuo, Chun-Chi Lin, Hau-Ping Chou, Yu-Yao Wang, Yi-Chen Tsai, Ming-Hsin Lai, and Chia-Lin Chung. Phytopathology® 2020 110:12, 1934-1945

Other Resources

UC Rice Blog

UC Agronomy - Rice

Rice Briefs (Colusa/Yolo)

Rice Notes (Yuba-Sutter)

Rice Leaf (Butte/Glenn)

Rice in the Delta

Feedback Poll

Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is the law. Find out more at ipm.ucanr.edu.

The views, thoughts, and opinions expressed are the speaker's own and do not represent the views, thoughts, and opinions of the University of California. The material and information presented here is for general purposes only. The "University of California" name and all forms and abbreviations are the property of its owner and its use does not imply endorsement of or opposition to any specific organization, product, or service.

Support the show

UC ANR is an equal opportunity provider and employer

Let us hear from you!

Welcome to Thoughts on Rice, a podcast hosted by University of California Cooperative Extension Rice Advisors. This podcast is for growers, PCAs, consultants, and other industry professionals in the California rice industry.  We'll primarily be focusing on the Sacramento Valley and Delta Region of California.

We aim to deliver extension information relating to the California rice industry. To this end, we will have episodes that range from interviews with industry experts to audio deliveries of our seasonal newsletters. Follow along to see the current extension efforts in our industry!

Upcoming Events!

• UCCE Hedgerow Demonstration Day on August 14 (CCA units available)
• Annual Rice Field Day on August 28
• Rice Pest Management Course on September 4 *registration required*

Other Resources

UC Rice Blog

UC Agronomy - Rice

Rice Briefs (Colusa/Yolo)

Rice Notes (Yuba-Sutter)

Rice Leaf (Butte/Glenn)

Rice in the Delta

Feedback Poll

Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is the law. Find out more at ipm.ucanr.edu.

The views, thoughts, and opinions expressed are the speaker's own and do not represent the views, thoughts, and opinions of the University of California. The material and information presented here is for general purposes only. The "University of California" name and all forms and abbreviations are the property of its owner and its use does not imply endorsement of or opposition to any specific organization, product, or service.

Support the show

UC ANR is an equal opportunity provider and employer