- Author: Michelle Leinfelder-Miles
- Author: Rachael Long
A pest control advisor recently contacted us to ask what pests he should be scouting for in garbanzo beans. His clients had not grown garbanzos in the past but have some acreage this year. Given recent wet weather and relatively mild temperatures, there are three diseases for which we suggest keeping an eye out.
Lastly, white mold (Sclerotinia sclerotiorum and S. trifoliorum) may be a problem in garbanzos this year, like Ascochyta blight, because of the wet conditions. White mold may appear as a watery rot on stems, leaves, and pods.
Information on products and practices is for educational purposes only and does not constitute an endorsement or recommendation by the University of California.
- Author: Michelle Leinfelder-Miles
Growers are invited to attend a focus group meeting to discuss conservation agriculture and wildlife friendly farming in the Delta. The meeting is jointly organized by Audubon California, CA Department of Water Resources (DWR), and University of CA Cooperative Extension. Steven Garcia, with DWR, will talk about a pilot project on Twitchell Island, and open discussion will follow the presentation. Grower feedback is highly valued and will provide direction for the project.
The meeting will be held on Thursday, February 25, 2016 from 9:00-11:00am at the Robert J. Cabral Agricultural Center (2101 E. Earhart Ave., Stockton, CA 95206). Mark your calendars, and please RSVP to Michelle Leinfelder-Miles (209-953-6100 or mmleinfeldermiles@ucanr.edu) by February 22nd. Light refreshments will be provided.
Agenda and Discussion Topics
1.) Introduction of meeting participants
2.) Presentation: “Conservation Farming Practices to Minimize Subsidence of Peat Soils in the Delta”: Steven Garcia, DWR
3.) Group Discussion Guiding Questions:
a. Are you incorporating conservation farming/wildlife friendly practices on your land? What practices and why?
b. What are the benefits, drawbacks, or uncertainties of conservation agriculture practices?
c. What conservation agriculture practices would you like to see tested in the Delta? What would be the biggest challenges?
4.) Future project plans
- Author: Michelle Leinfelder-Miles
Tables 1 and 2, respectively, show the results of the 2015 San Joaquin County rice variety trial and a 5-year yield summary of very early maturing commercial varieties. The statewide trials are a cooperative effort of the California Cooperative Rice Research Foundation, Inc., the United States Department of Agriculture, and the University of California. The trials compare advanced breeding lines with commercial varieties. The San Joaquin County test site is located in the Delta. It is a test site for very early maturing varieties because San Joaquin County is cooler than other rice growing regions of the state. The varieties were drill-seeded on April 29th at a rate of 140 lbs/acre and harvested on October 13th.
When interpreting the results, consider the following. The mean represents the average of all varieties. The CV, or coefficient of variation, is a measure of variability of the data in relation to the mean. The LSD (.05), or least significant difference at 95%, is used to compare means of different varieties. When the difference between two varieties exceeds the LSD value, we are 95% certain that the two varieties performed differently; the results are not due to random chance. For example, the LSD of the grain yield at 14 percent moisture is 640. This means that if the yields of two varieties differ by at least 640 lbs/acre, then we can conclude that the two varieties yielded differently. In this case, the top six varieties in Table 1 had statistically similar yields. In Table 2, yield means are averaged across all locations and years and compared to M-104, a standard very early variety. Over the five years, and across the four very early variety locations, M-206 – a common variety in this area – yielded 2.2 percent higher than M-104.
2015 Rice Variety Trial Table 1
2015 Rice Variety Trial Table 2
- Author: Michelle Leinfelder-Miles
UC Cooperative Extension annually sponsors four rice grower meetings in the Sacramento Valley. This year, the meetings will be held on Tuesday, January 19th and Wednesday, January 20th. The schedule and locations are as follows:
Richvale: Tuesday, Jan. 19, 8:30 am, Evangelical Church, 5219 Church St., Richvale
Glenn: Tuesday, Jan. 19, 1:30 pm, Glenn Pheasant Hall, 1522 Highway 45, south of Glenn
Colusa: Wednesday, Jan. 20, 8:30 am, CIP Conference Room, 100 Sunrise Blvd., Colusa
Yuba City: Wednesday, Jan. 20, 1:30 pm, Veterans Hall, 1425 Veterans Memorial Circle, Yuba City
Doors open at 8:00 am and meetings start at 8:30 am at Richvale and Colusa. Doors open at 1:00 pm and meetings start at 1:30 pm at Glenn and Yuba City.
Program
8:00 a.m. (1:00 p.m.) Doors open, sign-in, coffee
8:30 a.m. (1:30 p.m.) Call meeting to order - Rice Research Board Nominations – Dana Dickey, Rice Research Board
8:35 a.m. (1:35 p.m.) Rice Pesticide and Regulatory Update – County Ag Commissioner
8:50 a.m. (1:50 p.m.) Irrigated Lands Program: Farm Evaluations and Nitrogen Management Plan – Roberta Firoved, California Rice Commission
9:05 a.m. (2:05 p.m.) Year in Review – Cass Mutters, UCCE
9:35 a.m. (2:35 p.m.) Nutrient Management in California Rice Systems – Bruce Linquist, UCCE
10:15 a.m. (3:15 p.m.) — BREAK —
10:30 a.m. (3:30 p.m.) Impacts of Irrigation Price Hikes & Cutbacks on Water Management and Wildlife – Nathan Van Schmidt, UC Berkeley
10:45 a.m. (3:45 p.m.) Red Rice Update – Timothy Blank, California Crop Improvement Association
11:00 a.m. (4:00 p.m.) 2015 Armyworm Outbreak – Luis Espino, UCCE
11:30 a.m. (4:30 p.m.) Weed Management Update – Kassim Al-Khatib, UCCE
12:00 p.m. (5:00 p.m.) — ADJOURN —
At the Richvale meeting, there will be a slight change, as follows:
10:45 a.m. New methods, models and surveys to evaluate the value of rice lands to waterfowl – John Eadie, UC Davis (Richvale only)
11:00 a.m. Red Rice Update – Timothy Blank, California Crop Improvement Association
11:15 a.m. 2015 Armyworm Outbreak – Luis Espino, UCCE
Please contact your local farm advisor with questions.
- Author: Michelle Leinfelder-Miles
UC Cooperative Extension in San Joaquin County will host the SJC and Delta Field Crops Meeting on Friday, January 8, 2016 from 8:00am to 12:00pm. The meeting location is the Cabral Agricultural Center in Stockton (2101 E.Earhart Ave., Stockton, CA 95206).
The first half of the meeting will focus on pest management and the new regulations and permit conditions for chlorpyrifos, including results from an industry project to evaluate its critical uses and IPM decision-support tools for insecticide recommendations and stewardship. The second half of the meeting will focus on crop fertility and soil resource management.
The agenda is as follows:
8:00am Doors Open, Welcome and Introductions
8:10am Seed Treatments for Wireworm Control in Field Corn: Michelle Leinfelder-Miles, UCCE, San Joaquin/Delta Counties
8:30am Alfalfa Project Overview Addressing Critical Chlorpyrifos Use: Pete Goodell and Lori Berger, UC IPM, UC Kearney Research and Education Center, Parlier
9:10am Science Behind New Chlorpyrifos Regulations: Randy Segawa, California Department of Pesticide Regulation, Sacramento
9:25am Local Permit Conditions and Restrictions on Chlorpyrifos Use: Barbara Huecksteadt, Agricultural Commissioner's Office, San Joaquin County
9:40am NRCS Conservation Planning and Pesticide Hazard Mitigation: Ora Van Steyn, USDA-NRCS, San Joaquin County
9:55am Local Impacts and On-Farm Management – Panel Discussion: Mick Canevari, UCCE Emeritus, San Joaquin County; Bob Ferguson, Grower, San Joaquin County; Larry Godfrey, UC Davis; Dan Putnam, UC Davis; Mike Wackman, San Joaquin County and Delta Water Quality Coalition
10:25am BREAK
10:40am Using Dairy Manures as Fertility Sources of Silage Corn: Martin Burger, UC Davis
11:00am Use of Online Resources for Nutrient Management Decisions and Nitrogen Budgeting: Daniel Geisseler, UC Davis
11:20am Salinity Management in Alfalfa Fields: Michelle Leinfelder-Miles, UCCE, San Joaquin/Delta Counties
11:40am Wrap-up and evaluations
Continuing education (DPR and CCA) will be available. Our programs are open to all potential participants. If you require special accommodations, please contact UCCE San Joaquin County at 209-953-6100. Thank you, and hope to see you at the meeting.