- Author: Michelle Leinfelder-Miles
The San Joaquin County and Delta Rice Growers Meeting will be Monday, March 3, 2014 from 1:00-4:00pm at the Cabral Agricultural Center (2101 E. Earhart Ave., Stockton, CA 95206). See the agenda below, and please contact Michelle Leinfelder-Miles, Delta farm advisor, with questions.
Agenda:
1:00pm Doors open, sign-in, light refreshments, and welcome
1:05pm Rice Specialist Introduction, Bruce Linquist, UCCE
1:35pm Rice Industry Update, Roberta Firoved, California Rice Commission
1:50pm Variety Selection and Milling Quality, Cass Mutters, UCCE, Butte
2:20pm Rice in the Delta – The Potential to Mitigate Subsidence and Enhance Sustainability, Phil Bachand, TetraTech
2:50pm BREAK
3:00pm Potassium Fertility, Bruce Linquist, UCCE
3:30pm Weed Competition, Control, Timing and Herbicides, Albert Fischer, UC Davis
4:00pm Wrap-up and evaluations
Applied for DPR and CCA continuing education credits.
- Author: Luis Espino
2014 Annual Rice Grower Meetings
Sponsored by UC Cooperative Extension
-------------- 4 Locations --------------
WHERE & WHEN
Richvale: Monday, Jan. 27, 8:00 am, Evangelical Church, 5219 Church St., Richvale
Glenn: Monday, Jan. 27, 1:00 pm, Glenn Pheasant Hall, 1522 Highway 45, south of Glenn
Colusa: Friday, Jan. 31, 8:00 am, CIP Conference Room, 100 Sunrise Blvd., Colusa
Yuba City: Friday, Jan. 31, 1:00 pm, Veterans Hall, 1425 Veterans Memorial Circle, Yuba City
TIME: 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
8:35 a.m. (1:35 p.m.) Rice Research Board Nominations – Dana Dickey, Rice Research Board
8:40 a.m. (1:40 p.m.) Rice Specialist Introduction – Bruce Linquist, UCCE
9:10 a.m. (2:10 p.m.) Perspective on the Potential Drought and its Impacts
Richvale meeting: Ted Trimble, Western Canal Water District
Glenn meeting: Thad Bettner, Glenn-Colusa Irrigation District
Colusa meeting: Lewis Bair, Reclamation District 108
Yuba City meeting: Curt Aikens, Yuba County Water Agency
9:40 a.m. (2:40 p.m.) Regulatory Update – County Ag Commissioner
10:00 a.m. (3:00 p.m.) Weed Competition, Control, Timing and Herbicides – Albert Fischer, UC Davis
10:30 a.m. (3:30 p.m.) — BREAK —
10:45 a.m. (3:45 p.m.) Potassium Fertility – Bruce Linquist, UCCE
11:15 a.m. (4:15 p.m.) Waste Discharge Requirements – What does it mean to the grower? – Roberta Firoved, California Rice Commission
11:45 a.m. (4:45 p.m.) Fall Weather Patterns and Grain Quality – Cass Mutters, UCCE
12:00 a.m. (5:00 p.m.) — ADJOURN —
****Applied for DPR and CCA CE credits****
2014 Annual Rice Grower Meeting Program
- Author: Luis Espino
Save the date!
Richvale: Monday, Jan. 27, 8:00 am, Evangelical Church, 5219 Church St., Richvale
Glenn: Monday, Jan. 27, 1:00 pm, Glenn Pheasant Hall, 1522 Highway 45, south of Glenn
Colusa: Friday, Jan. 31, 8:00 am, CIP Conference Room, 100 Sunrise Blvd., Colusa
Yuba City: Friday, Jan. 31, 1:00 pm, Veterans Hall, 1425 Veterans Memorial Circle, Yuba City
TIME: 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 coming soon!
- Author: Luis Espino
In the last post I described some experiments I was conducting to determine if the redshouldered stink bug could be the cause of some "mysterious" cases of pecky rice. The result is clear: when caged on heading rice plants, this stink bug can definitively feed on developing kernels and cause peck.
Does this mean this insect is a pest of rice? NO. The redshouldered stink bug has been rarely found feeding on rice. This may explain some cases of pecky rice, but the redshouldered stink bug is not common in rice fields.
- Author: Luis Espino
Every year for the past 3 or 4 years I've been hearing of rice that is graded No. 2 because of "peck". It's always been just a few isolated cases, except in 2011 when we had some early rains during harvest. The free water on the surface of the the grains may allow fungi to grow and stain the kernel. Here's what water staining looks like:
Pecky kernels are damaged kernels that have one or more black, brown, red, or other discolored spots or areas on them caused by fungus growth or insects. In the southern rice producing states, the occurrence of peck is common because of the rice stink bug. This insect feeds on developing grains and causes peck. Here's what typical rice stink bug injury looks like:
The rice stink bug is not present in California. Some of the pecky rice reported from California could be just kernels that have been damaged by water (I suspect that rice that lodges while the field is still flooded is susceptible to discoloration). In the end, when making the grade determination, it doesn't matter if the discoloration was caused by insects or water, discolored kernels are all classified as "damaged kernels".
However, in some cases, water damage can be ruled out and the reason for the peck is unknown. In trying to solve this mystery, Larry Godfrey, UC Davis Extension Entomologist, and I sampled a field last year where peck had been reported before. We found a couple of redshouldered stink bugs (Thyanta spp.). I also collected this bug from rice in Glenn and Yolo counties. Even though we found just a few bugs, we wondered if this stink bug could cause peck. There is a 2007 report from Mississippi that claims this stink bug causes damage in rice. Here's what the redshouldered stink bug looks like:
We are currently doing some experiments with the redshouldered stink bug. We collected some of these bugs from weeds and infested panicle and whole plant cages. So far, it seems that these bugs can feed and survive on rice. After harvest we will be able to tell if the redshouldered stink bug is capable of causing peck. I will update after harvest.
In the meantime, if your rice is graded No. 2, and peck or damaged kernels seem to be the reason, let me know (laespino@ucanr.edu; 530-635-6234).
