Save the date!
Richvale: Tuesday, Jan 20, 8:30 to 12:00. Evangelical Church, 5219 Church St., Richvale
Glenn: Tuesday, Jan 20, 1:00 to 4:30. Glenn Pheasant Hall, 1522 Highway 45, south of Glenn
Colusa: Friday, Jan 23, 8:30 to 12:00. CIP Conference Room, 100 Sunrise Blvd., Colusa
Yuba City: Friday, Jan 23, 1:00 to 4:30. UCCE Building, 142 Garden Highway, Yuba City
It is the time of the year when Department of Pesticide Regulation (DPR) licenses need to be renewed. I usually have enough continuing education hours to renew, but this year I fell short. A few days ago, I took the new "Pesticide Resistance" online course offered by UC IPM. It is a narrated presentation put together by people with lots of field experience. The course describes the mechanisms of resistance in pathogens, insects, and weeds and discusses ways to manage resistance. It is not specific to rice, but very applicable to the rice system.
The online course is divided into three narrated presentations followed by a final test for each section. This course has been approved for 2 continuing education units in the “Other” category from DPR.
This course is based on a series of workshops held in Davis, Fresno, and at the Kearney Agricultural Research and Extension Center during the spring of 2014 presented by Dr. Doug Gubler (Dept. of Plant Pathology, UC Davis.), Dr. Larry Godfrey (Dept. of Entomology and Nematology, UC Davis), Dr. Beth Grafton-Cardwell (Lindcove Research and Extension Center and UC Riverside), and Dr. Kassim All-Khatib (UC Statewide IPM Program).
Check out the new course at http://www.ipm.ucanr.edu/training/pesticide_resistance.html.
It has been demonstrated that baling rice straw immediately after harvest (called rice strawlage) greatly increases its nutritional value for livestock. Baling at 30 to 40 percent moisture can have the challenge of mold management. With the help of producers, the University of California has been researching rice strawlage during the last two years. Two tours will offer livestock and rice producers a chance to determine if rice strawlage would work in their operations.
Monday, December 15, 2014 12:00-3:30 PM: Tour and hosted lunch at the Parker Ranch in Williams and Sand Creek Ranch in Arbuckle.
Meet at the Shell gas station directly off of the Interstate 5 exit for Highway 20 (on the south west side of the off ramp) at 12:00 noon and we will head to the ranch from there. Discussion with Doug and Judy Parker will cover the multi big bale wrapper process which includes treatments of rice straw with molasses sprayed on at baling, anhydrous ammonia added after wrapping, Storage Mate (proprionic acid) and bacteria inoculants, both applied at baling. Forage quality data providing initial treatment differences will be presented. The tour will then go to Ron LaGrande's Sand Creek operation at Arbuckle to see rice strawlage that was professionally tarped and cattle currently consuming the fall harvest of strawlage. RSVP to Josh Davy at (530) 527-3101 to make sure that he cooks enough hamburgers.
Wednesday, December 17, 2014 9:00-11:00 AM: Tour of the research heifers on rice strawlage at the Sierra Foothill Research and Extension Center at 8279 Scott Forbes Road in Browns Valley.
Results from the first 5 week feeding phase showing animal performance and nutritional evaluation will be covered. The treatments include a control (Quadris only), Storage Mate (proprionic acid), bacteria inoculant and both proprionic acid and bacteria. The 600 pound heifers will be on their second feeding phase and producers can see the different kinds of rice strawlage being consumed. Some are currently consuming 20 pounds of strawlage per day. How to stack and tarp the strawlage will be covered.
Last week I got two calls regarding unusual symptoms starting to appear on ripening rice plants. In both cases, the symptoms were described as medium sized round patches turning reddish or orange. Close inspection of plants showed typical symptoms of K deficiency.
Leaf tips turned reddish and yellow and started to dry out. Stems looked thin and soft. At first, the symptoms were only in small patches, but as plants matured the symptoms extended to the whole field, with some areas showing more symptoms than others.
The critical flag-leaf K value in mature plants is 1.2% (optimal is between 1.5-2%). Leaf samples from asymptomatic parts of the field were at 1.22%, while samples from areas where symptoms were clear were around 1.18%.
I've been seeing K deficiency for several years now. The take-up of K by plants is similar to N, around 150 lbs/a. Most of the K (80%) goes to the straw, while a smaller fraction (20%) goes to the grain. This means that even in fields where straw is incorporated, 20-30 lbs/a of K are removed each year. Over time, K levels in fields thought to be high in K could be reduced substantially. Currently, Bruce Linquist is examining soil K levels and his research shows that K fertilizers may be needed when soil K is below 120 ppm.
The annual Rice Field Day will be Wednesday, August 27, 2014, at the Rice Experiment Station (RES), Biggs, California. You and your associates are cordially invited to join us to observe and discuss research in progress at RES. The Rice Field Day is sponsored by the California Cooperative Rice Research Foundation and University of California with support from many agricultural businesses.
7:30 - 8:30 A.M.: REGISTRATION
- Posters and Demonstrations
8:30 - 9:15 A.M.: GENERAL SESSION
- CCRRF Annual Membership Meeting
- D. Marlin Brandon Rice Research Fellowship
- California Rice Industry Award
9:30 – NOON: FIELD TOURS OF RICE RESEARCH
- Variety Improvement
- Disease Resistance
- Insects and Control
- Weeds and Control
The program will begin at 8:30 a.m. with a General Session that serves as the Annual CCRRF Membership Meeting. Posters and demonstrations will be in place during registration until after lunch. Field tours of research will emphasize progress in rice variety improvement, disease, insect, and weed control. The program will conclude at noon with a complimentary luncheon. The RES is located at 955 Butte City Highway (Hwy. 162), approximately two and one half miles west of Highway 99 north of Biggs, California.