Delta Crops Resource Management

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2024 Rice Variety Trial Results

February 7th, 2025

By Michelle M Leinfelder-Miles

UC Cooperative Extension collaborates with the California Rice Experiment Station to evaluate commercial varieties and advanced breeding lines. The San Joaquin County Delta location was one of eight locations in the 2024 statewide trial.

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Figure 1. The trial was planted in a commercial field with well-drained soil in Stanislaus County.

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2024 Blackeye Bean Variety Evaluation

January 31st, 2025

By Michelle M Leinfelder-Miles

We evaluated blackeye bean varieties in a commercial field in Stanislaus County. Seven varieties from the University of California blackeye breeding program were planted on July 1st. The soil type at the trial location was well-drained (Dinuba and Hanford sandy loams, Tujunga loamy sand, Fig.

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Reminder: 2025 SJC and Delta Field Crops Meeting

January 16th, 2025

By Michelle M Leinfelder-Miles

This is a reminder that UC Cooperative Extension will host the SJC and Delta Field Crops Meeting on Friday, January 24, 2025 from 8:00am to 12:00pm. The meeting location is the Cabral Agricultural Center in Stockton (2101 E. Earhart Ave., Stockton, CA 95206).

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2025 SJC and Delta Field Crops Meeting

December 13th, 2024

By Michelle M Leinfelder-Miles

UC Cooperative Extension will host the SJC and Delta Field Crops Meeting on Friday, January 24, 2025 from 8:00am to 12:00pm. The meeting location is the Cabral Agricultural Center in Stockton (2101 E. Earhart Ave., Stockton, CA 95206).

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2024 Delta Rice Recap

November 18th, 2024

By Michelle M Leinfelder-Miles

Delta rice acreage has been steadily increasing, and yields are comparable with the statewide average. I estimate that acreage approached, if not exceeded, 15,000 acres in 2024. This article is my seasonal update on UCCE Delta rice research and observations. Table 1. Rice acreage and yield.

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2024 Field Corn Variety Trial Results

October 31st, 2024

By Michelle M Leinfelder-Miles

Results for the 2024 UCCE Delta field corn variety trial are now available. The trial took place on Tyler Island in Sacramento County. The trial was planted on April 26 and included nine varieties submitted by seed companies and two by the cooperating grower.

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2024 Delta Corn Field Meeting

September 27th, 2024

By Michelle M Leinfelder-Miles

UC Cooperative Extension will host the Delta Corn Field Meeting on Friday, October 11th from 10:00-11:30am, on Tyler Island in Sacramento County. The agenda is pasted below, and the attached version provides a map to the field.

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2024 Kearney Field Crops, Alfalfa and Forage Field Day

September 3rd, 2024

By Michelle M Leinfelder-Miles

The Kearney Field Crops, Alfalfa and Forage Field Day will be on Friday, September 13, 2024. The field day will take place at the Kearney Research and Extension Center, 9240 S. Riverbend Ave., Parlier, CA 93648.

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2024 Garbanzo Bean Variety Evaluation

August 16th, 2024

By Michelle M Leinfelder-Miles

In 2024, UCCE began evaluating garbanzo varieties in Central Valley regional trials. In a San Joaquin County commercial field, we evaluated six advanced lines from the UC Davis garbanzo breeding program and two standard varieties (UC 27 and Sutter).

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2024 UC Dry Bean Field Day

July 14th, 2024

By Michelle M Leinfelder-Miles

UC Davis and UC Cooperative Extension will host the UC Dry Bean Field Day on Thursday, August 15, 2024 from 9:30am to 11:45am. The field day will begin at the Agronomy Field Headquarters (2400 Hutchison Drive) on the UC Davis campus.

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Figure 1. Pheromone bucket trap showing armyworm moths.

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2024 Delta Rice Armyworm Monitoring

July 10th, 2024

By Michelle M Leinfelder-Miles

UCCE is monitoring armyworms in rice again in 2024. Our monitoring involves scouting for damage and deployment of pheromone bucket traps that catch the moths (Fig. 1). I have traps at three Delta locations, and my colleague, Luis Espino, is monitoring fields in the Sacramento Valley.

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Mix 1 at cover crop termination (3/18/2024).

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Winter Cover Crop Variety Evaluation

May 6th, 2024

By Michelle M Leinfelder-Miles

With funding from the CDFA Healthy Soils Program and CA Rice Research Board, we are evaluating how well different cover crop species establish, provide soil coverage, affect soil carbon and nitrogen dynamics, and/or impact rice yield in subsequent growing seasons.

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2023 Blackeye Bean Variety Evaluation

February 16th, 2024

By Michelle M Leinfelder-Miles

We evaluated blackeye bean varieties in a commercial field in Stanislaus County. The season began with cool and wet spring conditions, which lasted through the month of June and delayed planting. Seven varieties from the University of California blackeye breeding program were planted on July 7th.

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Cover Crops in Rice - Field Demonstration Day

February 9th, 2024

By Michelle M Leinfelder-Miles

UC Cooperative Extension will host a Healthy Soils Program field demonstration day on cover cropping in rice systems. The meeting will take place on Thursday, February 29th, from 9:30am to noon, on Staten Island in San Joaquin County (23319 N. Staten Island Road, Thornton).

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2023 Delta Rice Variety Trial Results

February 2nd, 2024

By Michelle M Leinfelder-Miles

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2024 SJC and Delta Field Crops Meeting

December 11th, 2023

By Michelle M Leinfelder-Miles

UC Cooperative Extension will host the SJC and Delta Field Crops Meeting on Friday, January 12, 2024 from 8:00am to 12:00pm. The meeting location is the Cabral Agricultural Center in Stockton (2101 E. Earhart Ave., Stockton, CA 95206).

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Figure 1. Green waste compost was applied to established alfalfa.

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Compost Application to Alfalfa

November 17th, 2023

By Michelle M Leinfelder-Miles

The term soil health' has become a common term in agricultural research and management.

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Fig. 1. The herbicide, Loyant, was trialed on cattails in 2022 and 2023. We observed good control when cattails were less than 3 feet tall.

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2023 Delta Rice Recap

November 9th, 2023

By Michelle M Leinfelder-Miles

Rice production in the Sacramento-San Joaquin Delta region has been steadily increasing in recent years. While Delta acreage is only a fraction of that in the Sacramento Valley, Delta yields are consistent with statewide averages. I estimate that in 2023, the Delta had around 10,000 acres of rice.

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2023 UC Field Crops, Alfalfa, and Forage Field Day

September 11th, 2023

By Michelle M Leinfelder-Miles

The UC Field Crops, Alfalfa, and Forage Field Day will take place on Friday, September 29, 2023. The field day will take place at the Kearney Research and Extension Center, 9240 S. Riverbend Ave., Parlier, CA 93648.

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Delta Rice Workshop

August 17th, 2023

By Michelle M Leinfelder-Miles

We invite you to attend a Delta Rice Workshop on Wednesday, August 23rd from 10:00am to noon on Staten Island (23319 N. Staten Island Rd., Thornton).

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The Delta Crops Resource Management research and extension program serves San Joaquin, Sacramento, Yolo, Solano, and Contra Costa counties addressing agronomic crop production and soil and water resource management.

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Michelle Leinfelder-Miles, Ph.D Farm Advisor

About Michelle

Michelle is the Delta Crops Resource Management Advisor serving San Joaquin, Sacramento, Yolo, Solano, and Contra Costa counties. Michelle grew up on a farm in San Joaquin County, and her educational background includes a B.S. in Crop Science and Management from U.C. Davis, and a M.S. and Ph.D. in Horticulture from Cornell University. At Cornell, her research focused on soil management in apple orchards. Michelle has also done research in Spain, Chile, and New Zealand studying olives, wine grapes, and kiwifruit, respectively. In her role as Delta farm advisor, she conducts a research and extension program that addresses agronomic crop production and water and soil resource management. Specific interests include variety evaluations in grain corn, small grains, and rice; cover cropping and soil health; and soil salinity management in Delta cropping systems.