Fruit & Nut Newsletter

IN THIS ISSUE
¨ Orchard Management Considerations: Budbreak through Early Summer

¨ New walnut variety ‘UC Wolfskill’ released    

¨ Pulling the trigger for the start of irrigation in the spring:

                Too much too soon for walnuts?

¨ Tree and Vine Crop Herbicide Chart – Updated (2021)

¨ 2021 Walnut Fungicide & Bactericide Efficacy & Timing Tables 

¨ New Staff Research Associate Introduction

¨ Did you miss the UCCE Virtual Walnut Series? Recordings are up!

IN THIS ISSUE

o Orchard Considerations for Bloom and Beyond, 2021

o Mechanical Pruning of Prune Trees Update

o Bloom Review, 2020

o PRUNE (DRIED PLUM): CONVENTIONAL FUNGICIDE EFFICACY

o PRUNE (DRIED PLUM): ORGANIC FUNGICIDE EFFICACY

o PRUNE (DRIED PLUM): TREATMENT TIMING

IN THIS ISSUE

• Almond Orchard Management Considerations –Bloom through Early April

• Early Season Irrigation: Do We Know When to Start?

• Hive Strength and Bee Health/Safety

• Bloom season specific sprayer calibration saves money and time.
•  
•  What new research into carbohydrates is teaching us about California orchards

• Almond Fungicide Efficacy Chart
• Almond Treatment Timing Chart
• Almond Suggested Disease Management Chart

Walnut Newsletter

In This Issue

¨ UCCE Virtual Walnut Series –February 16 & 17, 2021

¨ Walnut Winter Management UCCE Resources

¨ What new research into carbohydrates is teaching us about California orchards

¨ Tehama County COVID 19 Updates-Vaccination Appointments for “Agriculture” or 65 and older are now available by online.

In This Issue

• Post-Harvest Orchard Management Considerations
• Orchard sanitation is key to a quality crop
• Almond Leaf Scorch
• Ag Producers Continued Education Day-Nov 17, 2020 

In This Issue

• Post-Harvest Orchard Management Considerations
• Orchard sanitation is key to a quality crop
• Almond Leaf Scorch
• Ag Producers Continued Education Day-Nov 17, 2020 

Fall & Winter Prune Orchard Management Considerations

Cytospora: A Prune Grower’s Arch Nemesis

 New UC Davis Prune Cultivars Prove Promising

Long Pruning Webinar

(Tehama) Ag Producers Continued Education Day—November 17, 2020

UC Prune Research Conference—December 1 & 2, 2020

In This Issue:

Walnut Cultivar Table  

Allan Fulton, Irrigation/Water Advisor Retires

Fall Walnut Orchard Management Considerations

Tree and Orchard Replanting Considerations in a Lean Price Year

Selecting the Right Clonal Walnut Rootstock for Managing Soil and Pest Problems

Inside This Issue

• Pre- & Post-Harvest Almond Orchard Management Considerations
• Hull Split Hull Rot Management
• Maintaining Quality with Pick Up & Stockpiling Best Practices
• Navel Orangeworm Management Considerations
• Ant Management is Especially Important in a Heavy Crop Year

• PPE in short supply for farm work during the COVID-19 crisis
• Almond Management Considerations: Spring & Early Summer
• Potassium deficiency
• Rootstock trial for boron tolerance – 2019 Update
• Observations on Butte County Rootstock Trials
• Hull split timing and sprayer practices for best pest control results.
• Advisor Farewell
• Propiconazole (Tilt®, Bumper®, etc.) use cancelled in the EU

• Spring & Early Summer Orchard Considerations
• Thinning Prunes
• Update on Rootstocks for Prune Production

 ANNOUNCEMENTS

 PPE in short supply for farm work during COVID-19

• Spring & Early Summer Orchard Considerations
• Thinning Prunes
• Update on Rootstocks for Prune Production

 ANNOUNCEMENTS

 PPE in short supply for farm work during COVID-19

• UCCE Working Remotely
• What Rootstock Would You Choose? Tell Us.
• Herbicide chart update
• Walnut: Bactericide & Fungicide Efficacy (2020)
• Orchard Management Considerations: Budbreak through Early Summer
• Preparing for Extreme Events: Spring Frost
• Irrigation with Roots in Mind

• Orchard Considerations for Bloom and Beyond
• Young Orchard Weed Management
• New EPA Paraquat Restrictions
• Navigating Irrigation Technology Overload

Fall & Winter Almond Orchard Management Considerations

Zinc and Boron Review

Potassium management for sustained almond yields

Almond Variety Planting Trends

Increase Your Return on Investment with Post-Harvest Weed Scouting

 

        In This Issue

•  Winter Pest & Weed Management Considerations
•  Preparing for Extreme Events: Flood and Drought
•  Young Orchard Weeds Management
•  New EPA Paraquat Restrictions
•  Pre-Season Airblast Sprayer Calibration
•  Navigating Irrigation Technology Overload

  Meeting Announcements

  2/7/20  Tehama Walnut Day

  2/21/20 Tehama Prune Day

  2/25/20 Sutter Yuba Spray Workshop

  2/26/20 Sutter-Yuba-Colusa Walnut  Day

  3/4/20 Yolo-Solano-Sacramento Walnut Meeting

   

• Increase Your Return on Investment with Post-Harvest Weed Scouting
• Fall & Winter Prune Orchard Management Considerations
• Cytospora: A year-round fight
• Long Pruning for Greater Early Yields

MEETINGS ANNOUNCEMENTS

11/18/19    Tehama County Growers Meeting

02/21/20    Tehama Prune Day

02/21/20    Tehama Walnut Day

11/5-8/19   Almond Production Short Course

Tehama Walnut Day - February 7th,-- Registrations due Jan 30th for free lunch.

Tehama Prune Day - February 21st, --Registrations due by Feb 13th for free lunch.

• Pre-Harvest & Harvest Prune Orchard Considerations
• 2019 Canker Review
• Delivering the largest fruit possible this year.

Cover Crop Seed Selection

Katherine Jarvis-Shean, UCCE Orchard Advisor, Sacramento, Solano and Yolo Counties

Dani Lightle, UC Orchards Advisor, Glenn, Butte & Tehama Counties

Summer-Fall Almond Orchard Management Considerations

Drew Alonso Wolter, UCCE Junior Specialist Horticulture Intern, Sutter/Yuba and Colusa Counties

Emily J. Symmes, Sacramento Valley Area IPM Advisor, University of California Cooperative Extension and Statewide IPM Program

Katherine Jarvis-Shean, UCCE Orchard Advisor, Sacramento, Solano and Yolo Counties

Luke Milliron, UCCE Farm Advisor, Butte, Glenn and Tehama Counties

• Walnut Orchard Management – June through August 2019
• IPM on a Budget – Cost Saving Strategies for Insect & Mite Management
• Maximizing walnut quality to improve value in a low-price year
• Should You Use Ethephon in a Lean Price Year?
• Advisor Retirement Announcement
• Autumn Freeze Event and Spring Regrowth Update

The Advantages of Tighter Spacing and Greater Light Interception in California Prune Orchards

Prune Management Considerations: Spring -- Summer

Thinning Prunes

• Orchard Management Considerations: Budbreak through Early Summer
•  Walnut Blight Management in 2019
•  Revisiting Your Codling Moth IPM Program in a Lean Crop Year
•  Pulling the trigger for the start of irrigation in the spring:

               Too much too soon for walnuts?

IN THIS ISSUE

• Pre- and Post- Herbicide Performance on Threespike            Goosegrass in Tree Nut Orchards

• The Many Possible Causes of “Gummy Nuts” in Almonds   
• Almond Management Considerations: Spring & Early Summer

• Hull Split Timing and Sprayer Practices for Best Pest Control           Results Hull Rot Management

• Trends in World Prune Markets (and What They Could Mean for California Grower Practices in 2019).
• Orchard Considerations for Bloom and Beyond
• Update on Heart Rot in Prunes
• Bloom Disease Treatments in Prune and Honey Bee Safety
• Prune Fungicide Efficacy Chart
• Is This a Year to Skip Thinning?

Preemergent Herbicides Registered in California for Prunes

• Trends in World Prune Markets (and What They Could Mean for California Grower Practices in 2019).
• Orchard Considerations for Bloom and Beyond
• Update on Heart Rot in Prunes
• Bloom Disease Treatments in Prune and Honey Bee Safety
• Prune Fungicide Efficacy Chart
• Is This a Year to Skip Thinning?

Preemergent Herbicides Registered in California for Prunes

In This Issue

* Scale Pests, Navel Orangeworm, and Flatheaded Borers

* Cost and Expense Considerations in a Lean Price Year

* Tracking Winter Irrigation Needs

* Growing the Valley Podcast: Walnut episodes posted!

MEETINGS ANNOUNCEMENTS

• 2019 IPM Breakfast Meetings
• 2019 UCCE Walnut Winter Meetings
• Tri County Almond/Walnut Day—January 30, 2019
• 2019 Tehama Walnut Day—February 8, 2019
• 2019 Tehama Prune Day—February 22, 2019

• Winter & Bloom Almond Orchard Management Considerations
• Early Season Irrigation: Do We Know When to Start?
• Tracking Winter Irrigation Needs
• The Rot from Within: Wood Decay in Almond
• Growing the Valley Podcast: Almond episodes posted!
• Protecting Honey Bees at Bloom
  
  Almond Bloom Diseases
  Fungicide Efficacy and Timing Tables
•  

Upcoming Meetings & Courses

 Tehama Walnut Day—February 8, 2019

Tehama Prune Day—February 22, 2019

Tri-County Almond/ Walnut  Day  January  30, 2019

2019 IPM Breakfast Meetings

 IN THIS ISSUE

• Fall & Winter Prune Orchard Management Considerations
• Pros and Cons of Mechanical Pruning
• Cytospora Post-Harvest: Cut it out! Protect fresh cuts!

UPCOMING MEETINGS

♦Tehama County Continuing Education Courses:  

November 28 and December 5, 2018 from 10am to 12pm in the Walnut Room

at the Agricultural Department, 1834 Walnut Street, Red Bluff.  

♦Tehama Walnut Day– February 8, 2019

♦Tehama Prune Day—February 22, 2019

• Postharvest Nutrition Review
• Post-Harvest Orchard Management Considerations
• Cover Crops in Almonds: Research Updates
• SoilWeb Workaround
• Marmorated Stink Bug Damage

• Fall Orchard Management Considerations

• Pruning with BOT Infections in Mind

• Impacts and Recovery on Walnuts from 2017 Flooding

• Optimizing Your Orchard Spacing

Monterey and the Leafing Failure

School is out, and the grades are coming in: July Leaf Analysis

Irrigation Management for Hull Rot Control

Pre- & Post-Harvest Almond Orchard Management Considerations

June Hull Rot Reminder

UPCOMING MEETINGS

2018 IPM Breakfast Meetings-Tehama County –Sept 21st-Rockin R Restaurant

62 Annual WEED DAY 2018—Thursday July 12, 2018—UC Davis

• Walnut Orchard Management – June through August
• Early Walnut Tree Training: How to Handle Different Nursery Products
• Steps of Early Walnut Training with Most common Nursery Products
• Leaf symptoms of overwatering walnut trees

UPCOMING MEETINGS

2018 IPM Breakfast Meetings

Tehama County:   Sept 21^hst  7:30-9:00 am -  (Rockin R Restaurant, Red Bluff)

Early Walnut Tree Training

How to Handle Different Nursery Products & How toUse a Pressure Chamber for Irrigation Scheduling Hands on Workshop

Tuesday July 10, 2018,   8:30 am—Noon,   Yuba City

2018 Walnut  Production Short Course

November 5-7, 2018—Davis, CA

Orchard Management Considerations
? A New Tool in the Fight Against Blight
? 2018 Winter and Early Season Irrigation Considerations in Walnut
? 2017 Flood Damaged Trees-Research Results and What to Do this Spring
? Tree and Vine Crop Herbicide Chart – Updated (2018)
UPCOMING MEETINGS
2018 IPM Breakfast Meetings
Third Friday of each month (7:30-9:00 am) Tehama County: May 18th (Rockin R Restaurant, Red Bluff)
Water Measurement and Reporting Course
Tuesday, March 20, 2018 - 1:00-4:00 pm - Shasta Livestock Auction Yard— 3917 N. Main Street, Cottonwood, CA 96022
Spring Almond & Walnut Nutrient and
Water Management Field Day
Tuesday, March 27, 2018 - 8:30—1:00 pm - CAPEX 21275 Simpson Road, Corning, CA
Nickels Soil Lab Annual Field Day
Tuesday, May 8, 2018 8:30 am—12:00 pm - Nickels Field Station-Colusa

Orchard Management Considerations
? A New Tool in the Fight Against Blight
? 2018 Winter and Early Season Irrigation Considerations in Walnut
? 2017 Flood Damaged Trees-Research Results and What to Do this Spring
? Tree and Vine Crop Herbicide Chart – Updated (2018)
UPCOMING MEETINGS
2018 IPM Breakfast Meetings
Third Friday of each month (7:30-9:00 am) Tehama County: May 18th (Rockin R Restaurant, Red Bluff)
Water Measurement and Reporting Course
Tuesday, March 20, 2018 - 1:00-4:00 pm - Shasta Livestock Auction Yard— 3917 N. Main Street, Cottonwood, CA 96022
Spring Almond & Walnut Nutrient and
Water Management Field Day
Tuesday, March 27, 2018 - 8:30—1:00 pm - CAPEX 21275 Simpson Road, Corning, CA
Nickels Soil Lab Annual Field Day
Tuesday, May 8, 2018 8:30 am—12:00 pm - Nickels Field Station-Colusa

Bloom Almond Orchard Management Considerations

When is Peach Twig Borer a Concern?

Navel Orangeworm Considerations 2018

Honey Bees and Bloom Sprays

How is Band Canker Infecting Young Trees?

Missing the Target: Why Potted Trees should be irrigated

directly onto Potting Media" 

Upcoming Meetings & Courses

2018 IPM Breakfast Meetings-Butte County –March 16th

Tehama Prune Day—February 23rd—Red Bluff Elks Lodge

8:00—1:00 PM

• Dry, Warm Winter Raises Questions about Irrigation
• Thinning Prunes
• Prune Bloom Orchard Management Considerations
• Evaluating New Rootstocks: What’s the Latest?
• Prune Bloom Orchard Management Considerations
• New Hazard for Interplanted Orchards

And upcoming meeting announcements

TEHAMA WALNUT DAY

February 2, 2018

7:45 am-1 pm   —  Red Bluff Elks Lodge

TEHAMA PRUNE DAY

February 23, 2018

7:45 am-1 pm   —  Red Bluff Elks Lodge

Butte Walnut - Almond Day

January 31, 2018

Chico Silver Dollar Fairgrounds

• Bacterial Spot: A Dangerous Disease
• Gophers Kill Trees!
• Update on Yellow Monterey Almond Trees
• Almond Orchard Management Checklist: Post-Harvest and Dormancy
• New Pesticide Labels Available to Help Control Pruning Wound Infections

Upcoming Meetings & Courses

• Almond Meetings Schedule
• Feb 18th—Mar 1st, 2018 2 Week Extension Course- “Principles of Fruit & Nut Tree Growth Cropping and Management

• ¨ Fall prune orchard management considerations following a heavy crop
• ¨ Aphid Management Review

UPCOMING MEETINGS

¨ Upcoming IPM Breakfast Meetings—Oct 10 & Nov 14

¨ Advances in Prune Production-September 26th

IN THIS ISSUE:

• Fall Walnut Orchard Considerations
• End of Season Flooded Orchard Damage Update
• Considerations for Replanting a Walnut Orchard
• Biofumigation Basics
• Upcoming  Meeting Announcement
• Welcoming New Farm Advisor—Mariano Galla

• Bacterial Canker Experience in the Sacramento Valley
• Root Asphyxiation (Waterlogging)
• Advances in Cytospora canker management
• July and August Prune Management Considerations

_{Upcoming Meetings}

Recent Advances in Prune Research -Tuesday, September 26th

IPM Breakfast Meeting— Tehama September 12^th   7:30-9:00AM– (Rockin R Restaurant)

¨ Rick Buchner’s Retirement OPEN HOUSE   June 30th,  3-5 pm

¨ New Farm Advisor Introduction– Luke Milliron

¨ In-Season Walnut Production Considerations

¨ Insect & Mite Updates—2017

¨ Upcoming IPM Breakfast Meetings

¨ Flooded Orchard Damage Update & Management Considerations

• New Farm Advisor Introduction!
• Bacterial Blast on 2017 Bloom
• Navel Orangeworm Update
• Yellowing trees on Krymsk 86
• Approaches to spider mite management in almonds
• Variety Trial Field Day – June 22^nd, 9 am
• Photos-from-the-field – sacvalleyorchards.com
• Upcoming breakfast meetings – mark your calendar!
• Rick Buchner’s Retirement “OPEN HOUSE”—June 30th , 3-5 pm….stop by to wish him well!

• Techniques to Time First Irrigation Dates for Prune
• Prune orchard nutrition: thoughts for 2017
• Why are some prune trees yellow in the spring?  The Bicarbonate Blues.
• Prune Management Considerations: Late Spring through Summer
• Thinning Prunes

           NICKELS SOIL LAB ANNUAL FIELD DAY-May 10, 2017

•  Waterlogged Orchards?
•  Bloom Review
•  Potassium, Zinc, Iron & Manganese Deficiencies
•  April Showers bring Yellowing Krymsk?
•  Almond Management Considerations: Spring & Early Summer
•  Correction: When to Apply the First Irrigation?
•  Upcoming Breakfast Meetings – Mmark Your Calendar!
•  Nickels Field Day –May 10^th -- Registration Form & Map

• Prune Bloom Orchard Management Considerations
• Crop Load Adjustment (Thinning Prunes)
• Bad bloom weather options
• Fungicide efficacy
• Upcoming Meetings

• NOW Update
• Counting Winter Chill
• Monthly IPM Breakfast Meetings
• 2017 UC Cooperative Extension Walnut Meetings
• Walnut Day Meeting Agenda and Registration - Jan. 20, 20117
• Prune Day Meeting Agenda and Registration - Feb. 17, 2017

•  Fall prune orchard management considerations following a light crop (without hurting the next crop)
•  Preliminary Observations for New Prune Rootstocks
•  Food for thought when planting a new prune orchard.
•  Potted tree irrigation after planting: Getting the first year right
•  Prune Industry Summit 2017: Exploring the Wonders of California Prunes

• 2016 Almond Production Short Course
• Pocket Gopher Management
• Leaf Rust of Almond
• Fall Zinc and Boron Review
• Potted Tree Irrigation after Planting: Getting the first year right
• Visit the Sac Valley Orchard Source: Calendar of Extension meetings
• Post-Harvest Considerations

• Tipping the Scales to Favor Walnut Quality 
• Walnut Husk Fly Update 2016 
• In-Season Walnut Production Considerations 
• Selecting the Right Clonal Rootstock for Managing Soil and Pest Problems 
• Are You Pushing Out a Chandler Orchard in the Next Year?  ….Call Kat!
• New Website Resource for Sacramento Valley Tree Crop Production

• Pocket gopher management: don’t wait too long!
• An alternative preemergence herbicide strategy for summer grasses in orchards
• Weekly soil moisture loss reports to assist with water management
• In-season almond pest and disease considerations
• Organic almond production field meeting planned
• Nickels Field Day

• Prune Orchard Management Considerations – Fruit Development to Harvest
• Prune Bloom, 2016.
• Pocket gopher management: don’t wait too long!
• Cropload evaluation and shaker thinning for orchard health and profit 
• Weekly Soil Moisture Loss Reports to Assist With Water Management 

• Nitrogen Management for Prunes
• Prune Bloom Orchard Management Considerations
• 2015 Field Evaluation of Prune  Rootstocks
• Nitrogen Management for Prunes
• Fungicide Efficacy
• TEHAMA PRUNE DAY  - February 26, 2016

 Orchard Management Considerations:    Delayed Dormant through Early Summer

 The Latest on Managing Bot Canker and Blight – 2015 Research Updates

 Walnuts: When to Begin the Irrigation Season

 New walnut variety ‘Durham’ released

 Tree and Vine Crop Herbicide Chart – Updated

 Walnut: Bactericide and Fungicide Efficacy

• Krymsk 86 in cool, wet conditions
• Wet or dry, get ready
• El Niño Rains and pruning don’t mix!
• Upcoming almond meetings
• Frost Protection
• Pre-Bloom Almond Orchard Management Considerations
• Have any of your trees blown down?
• Fungicide efficacy tables  (2015 Version still to be approved,not available yet)

• 2016 Tehama Walnut Day Announcement
• Key to Navel Orangeworm Management – NOW is the Time
• Training Young Walnut Trees: Minimum Pruning -vs-No Pruning Compared
• Pruning Under the Threat of Bot
• New Walnut Cost Study
• 2016 UC Cooperative Extension Walnut Meetings

• Late Summer and Fall Orchard Management Considerations
• Preparing Young Walnut Trees for Winter
• Using Ethephon for Earlier Harvest
• Navel Orangeworm in Walnuts

Topics in this Issue:

• Rain and Pruning Don’t Mix
• Fall Prune Orchard Management Considerations
• Weed Management in Prunes
• A Good Year for a Fall Spray in Prunes?
• Gear Up, Throttle Down for Pest Control and Cost Savings
• Have any of your Trees Blown Down? 

• Late Summer and Fall Orchard Management Considerations
• Preparing Young Walnut Trees for Winter
• Using Ethephon for Earlier Harvest
• Navel Orangeworm in Walnuts

• Non-infectious Bud Failure Management
• 2015 In-season Navel Orangeworm Update
• Weak Areas in Orchards…Dead Roots?
• Almond Canopy Cankers
• Why are Some Individual Trees Turning Yellow and Not Growing?
• Pre-harvest Almond Orchard Management Considerations

• Blue Prune
• Preharvest Practices to Consider
• Predicting an Early ‘French’ Harvest
• Prune Cracking

• Drought Strategies for California Prune Production
• Crop Load Assessment and Adjustment
• Prune Orchard Management Activities – May through July
• N Budgeting Following the 4 R’s
• How Hot was it at Bloom, 2015?
• Warm Postbloom Weather = Early Harvest?
• Nickels Soil Lab Annual Field Day

• Navel orangeworm in 2015
• Almond scab
• Band canker
• N budgeting following the four Rs
• In-season almond orchard management considerations
• Nickels Field Day, May 6th

• Walnut Blight Management
• Preventing Walnut Scale and Botryosphaeria Canker and Blight
• Walnut Orchard IPM Activities—Delayed-Dormant through July

UPCOMING MEETINGS

Advances in Walnut Production Short Course,  Nov 16—20, 2015

Northern Sacramento Valley Water Dialogue April 30, 2015

• Prune Orchard Activities February – May
• Heat at Bloom Update
• Honey Bee Safety During Prune Bloom
• Prune (Dried Plum) Fungicide Efficacy Guide
• Prune (Dried Plum)  Treatment Timing Guide
• Pesticide Safety Train-the-Trainer Workshops being offered by UC IPM
• South Sacramento Valley Prune Grower Meeting —  March 4, 2015
• Food Safety Workshop for Small Farms — March 5, 2015
• 2015 Crop ET Reports—Beginning in April
• 2015 Pest Updates —  Starting April 2015
• Nickels Field Day — Save the Date — May 2015
• UC Publications of Interest for Prune Production

? Walnut Orchards Planted in 2014 - What to Do Now?
? Walnut Year-Round IPM Plan and Winter Orchard Pest Management Activities
    UPCOMING MEETINGS
Tehama Walnut Day—February 6, 2015 - 8:00am to 1:30 pm
    Red Bluff Elks Lodge, Gilmore Road Red Bluff, CA 96080 Registrations Due 1/29/15
Tehama Prune Day—February 20, 2015 - 8:00am to 1:30 pm
Red Bluff Elks Lodge— Gilmore Road Red Bluff, CA 96080 — Registrations Due 2/12/15
Young Almond & Walnut Orchards Workshop -1/16/15, 8:30am-12pm.
Glenn-Butte Walnut Day— 2/6/15, 1-5pm.
Sutter-Yuba-Colusa-Yolo-Solano-Sacramento Walnut Day - 2/25/15, 12:30-4:45pm.
Walnut (7 year olds) No Pruning / Pruning Comparison Field Meeting - 3/3/15-morning.

•   Winter Sanitation for Navel Orangeworm Control
•   Winter & Bloom Almond Orchard Management Considerations  
•   Honey Bee Safety during Bloom
•   Bacterial Spot of Almond in California
•   Rootstock Trial for Boron tolerance has Nickels with an early lead  
•   Almond fungicide efficacy, treatment timing & suggested management programs 
•   Upcoming almond meetings – mark your calendar! 
•   “Tehama Walnut Day" Announcement & Registration

• Fall-winter almond orchard management considerations 

• Winter sanitation – hull rot & navel orangeworm 

• Irrigation system maintenance 

• Building an effective orchard weed management program 

• Upcoming meeting dates

• Black Mushy Walnut Hulls – Possible Causes
• Fall Walnut Orchard Management Considerations
• Orchard Removal and Site Preparation for Walnut Planting
• Oilless  Nuts or Walnut Husk Fly
• New UC Walnut Budding, Grafting and Planting Video Released
• How to Avoid Freeze Damage in Young Walnut Trees

• New IPM Advisor Introduction — Emily J. Symmes,
• New Farm Advisor Introduction — Katherine Pope
• Research Reveals the Core Components of Optimum Almond Production
• Navel Orangeworm Management -- 2014
• Advisor Retirement – Thanks!
• Leaf Analysis and Salinity Monitoring
• Nitrogen Management in Orchard Crops -- Red Bluff  Meeting July 24th

Welcoming  - New UC Advisors

Advisor Retirement - Joe Connell in Butte County

Scouting for Spider Mites in Prunes

Deficit Irrigation for French Prune

Chill Model Comparison-Why two models judged last winter very differently

Nitrogen Management in Orchard Crops Meeting Announcement

• Nitrogen Management in Orchard Crops Workshop-July 24th
• Scale Identification and Life cycles in Walnut Orchards
• Walnut Husk Fly Trap and Low Volume Spray Study Update
• New Advisor Introductions
• Irrigation Management Tools for Developing Walnut Trees
• Joe Connell-Butte Co. Farm Advisor Retirement Announcement

•  New Farm Advisor Introduction
•   Irrigation Management
•   Foliar Nutrient Sprays
•   Insect Activity, Spring 2014  
•   Nitrogen Use Efficiency
•   Nickels Field Day, May 14^th
•   Nickels lunch reservation form & map

• Irrigating French Prune During a Drought.
• How Hot was it at Bloom, 2014?
• Efficient Nitrogen Management in Prune Production .
• Prune Aphids in Spring & Summer.
• Low Chill Winter?

• Watch for Early Insect Activity
• California Walnut Research: Moving the Industry Forward
• Manzate products Labled for Use in California
• Understanding and Managing Botryosphaeria and Phomopsis
• Canker and Blight in Walnut
• Springtime Recovery from Winter Freeze Damage
• Perspective on Trends in Orchard Spacing, Pruning and Potential Disease
• New Farm Advisor Introduction

• Pollination and Honey Bee Safety
• Orchard Sanitation: A Key Winter Practice in Almond Production
• Observations on Butte County Rootstock Trials
• Almond Fungicide Efficacy, Treatment Timing & Suggested Programs

Sacramento Valley Almond Meeting - Colusa - Feb. 4th

Tehama Walnut Day- Feb 7th - Red Bluff Elks Lodge

Almond Institute/Walnut Day - Feb 12th - Chico

Tehama Prune Day - Feb 21st - Red Bluff Elks Lodge

Join UC Cooperative Extension in Tehama County for thier 11th annual Prune Day. This workshop for Prune growers and industry representatives, will present the latest information involved in the industry along with the opportunity to ask questions and meet others in the industry.  Check out this issue for meeting information and registration details.  If you have any questions...call the Tehama Cooperative Extension office at 530 527-3101. 

*Survey11900*

Tehama Walnut Day is a University of California Cooperative Extension Program designed to provide orchard information to growers PCA's and related agri-business people.

Click below to register online

2014 Tehama Walnut Day 

Prune Out Cankers to Reduce Disease and Reinvigorate Trees

Prune Orchard Fertility Review

Prune Orchard Management Considerations in a Dry Winter

Tehama Prune Day-February 21, 2014

• Water Management for Almond: In-season, Harvest and Post-harvest
• Navel Orangeworm Management -- 2013
• Pre-harvest Almond Orchard Nutrition
• Almond Hull Rot – Cultural and Chemical Management
• Alternaria Leaf Spot and Leaf Rust of Almond  

• Irrigation Management Tools for Developing Walnut Trees
• Husk Fly Trap Study
• Howard Nut Drop
• Ethephon Use Considerations in the Sacramento Valley

• Blue Prune Drop and Leaf Scorch
• Earlier Harvest in 2013
• 2013: A Tough Year for Cankers

• Almond Varieties
• Crown Rot and Pruning Wound Cankers
• Tying Young Trees
• Navel Orangeworm Pressure?
• New Video: Managing Almond Pests using the Year-round IPM Program
• Upcoming Meeting Announcements

Orchard Irrigation 2013

Prune Tissue Sampling for Leaf Analysis

Efficient Nitrogen Management in Prune Production

How HOT was it at Bloom, 2013?

Upcoming Meeting Announcements

2013 Walnut Blight Management

New Walnut Variety "Solano" Released

Spacing Walnuts for Optimum Light Interception and Production

Guidelines for Handling Potted Walnut Clonal Rootstock Plants

Groundwater Nitrogen Dilemma

Bee Careful with Pesticides

Almond Orchards with Wild Insects Have Higher Fruit Set

Springtime Disease Control

Butte-Glenn Almond Institute & Walnut Day -- February 22, 2013

Nickels Field Day Set for May 15, 2013

Nitrogen Management for French Prune

Brown Rot Blossom/Twig Blight and Preventing Fungicide Resistance

New 2012 Prune Cost Study for the Sacramento Valley

Heat at Bloom Update

10th  Annual Tehama  PRUNE DAY--Friday, February 8, 2013

Registrations due by January 31, 2013

19th Annual TEHAMA WALNUT DAY   

Friday -February 1, 2012

Registrations Due: January 31, 2013

To Register online, click here   2013 Tehama Walnut Day

2012 Navel Orangeworm - Part 2

Leaf Blight

40th Annual Almond Conference moved to Sacramento

Planning your Weed Management Program

Pocket Gopher and Ground Squirrel Managementfor Autumn

Hull Rot

• Two Different Spots on Prune Leave
• Prune Orchard Nutrtion
• Prune out Cytospora Cankers to reduce Disease
• Fall Spray for Prune Aphid Management

♦ Points to Consider in the Prevention of Crown Gall

♦ Guidelines for Handling and Planting Bareroot Walnut Nursery Trees

♦ Orchard Removal and Site Preparation for Walnut Planting

♦ Diagnosing and Managing Branch Wilt Disease

♦ Management of First Year Walnut Trees in Fall and Spring

 Upcoming Meetings: Walnut Day - Feb 1, Prune Day Feb 8.

Managing Prunes Through Harvest

Sizing Prunes at Harvest

Distinguishing Between Branch Dieback Disorders

A comparison of four branch/scaffold dieback disorders in prunes

New Prune Production Manual Announcement

¨ Alternaria Leaf  Spot and Leaf Rust of Almond

¨ Advisor Retirement and New Position Proposals

¨ Why are some individual trees turning yellow, are weak,

     or are not growing?

¨ New Almond Cost Study for the Sacramento Valley

¨ 2012 Navel Orangeworm

• 2012 Walnut Blight
• Orchard Management Impact on Walnut Quality
• Advisor Retirement and New Position Proposals
• Anthracnose, Botryosphaeria and Phomopsis in Walnut-Updates
• New Walnut Cost Study for the Sacramento Valley

Crop Load Assessment and Adjustment
When to Thin and Why
Get What You Pay for with Fertilizers
Upcoming Nickels Field Day - May 3, 2012

Nitrogen Use Efficiency in Almonds
Almond Pruning Wound Cankers
Fungicide Efficacy Tables
Meeting Announcement: Nickels Field Day - May 3, 2012

- Heat at Bloom Update
- Mobile Irrigation Lab Servicves
- Its Your Money
- Prune Fungicide Efficacy & Treatment Timing Charts

- Walnut Blight Management
- Training and Pruning Young Walnut Trees
- Tools for Weed Management Decisions in Orchard Crops
- Mobile Irrigation Lab Services
Upcoming Meetings
   "Walnut Pruning Field Meeting"-March 6, 2012 Nickels Soil Lab-Arbuckle

- Pruning and Training Young Almond Trees
- Butte Glenn Walnut Day & Almond Institute-Feb 1st
- Guidelines for Planting Almonds
- Almond Board Sustainabilituy Workshops-Feb 2012
- Winter Irrigation
- South Sacramento Valley Almond Meeting- Feb 2nd
- Almond Board Sustainability Workhops - Feb 2012
- Focus on Bees, Colony Strength and Health
- Orchard Sanitation; a Key Winter Practice in Almond Production

-Gopher Control
-A short review of three micronutrients: Zinc, Manganese, and Iron
-Review of Navel Orangeworm Control research in Almond
-Alternaria Leaf Spot and Leaf Rust of Almond
-Observations on Krymsk 86 rootstock
-Upcoming meeting calendar

How Traps are used to Monitor Walnut Husk Fly
Walnut Huller and Dehydrator Food Safety Good Manufacturing Practices (GMP) Checklist
Additional Ethephon Use Considerations in the Sacramento Valley
Considerations When Replanting Individual Trees in a Walnut Orchard
The Science (and Art) of Ethephone Use on Walnut
Useful Websites related to Walnut Production
Upcoming Meeting Announcements: 2012 Walnut Day & 2012 Tehama Prune Day

Considerations When Removing Prune Orchards
New Prune Rootstock Research is Underway
Prune Orchard Fertility Review: Focus on the "Key 3"
Prune Research Reports - Now Available on the Internet
Upcoming Meeting Date Announcements: Tehama Walnut Day & Tehama Prune Day

- Codling Moth - The 2011 Season
- Preparing Young Walnut Trees for Winter
- Howard Nut Drop
- Movento (Spirotetramat) as a Nematicide
- Update on New Walnut Varieties Forde, Gillet, and Sexton

- Upcoming Tailgate meetings: 
     August 3rd-Taylor's Orchard- Corning
  & August 10th-Sohrakoff's Orchard-Los Molinos

- Rotation Crops and Intercrops that do not increase Nematode Pests
- New Changes in Aluminum Phosphide Labels
- Understanding and Applying Information from a Soil Test: Salinity
- Herbicide Resistant Weed Survey
- Using Leaf Tissue Analysis for Almond Nutrition

Managing Fruit Brown Rot and Prune Rust.
Blue Prune Drop and Leaf Scorch.
Bloom Time Temperatures Compared to Fruit Set in 2011.
Update on Spotted Winged Drosophila in Prunes.
When will Harvest Start in 2011?
Orchard Crop Tailgate Meeting Announcements

Field Mtg#1 - Solar Power at Work on the Farm and Buried Drip Irrigation in Prunes - July 28th,  9:00-10:30 am, Lindauer River Ranch, Red Bluff

Field Mtg#2 - Irrigating Prunes on Marginal, Capability Class II & III Soils
August 3, 2011,  9:00-10:30 am,  Taylor's Farm, Corning

Field Mtg#3 - Irrigating Walnuts on Deep Alluvial, Capability Class I Soils
August 10, 2011, 9:00-10:30 am,  Sohrakoff Orchards , Los Molinos

A New Season - When to begin irrigating and how much water to apply?
Using Urea Efficiently
In-Season Postassium Fertilization Options for Prunes
Crop Load Assessment and Adjustment
Crop Load Evaluation Field Meeting Announcement - May 4, 2011

-Understanding and applying information from a soil test: Part 4
-Handling late planted trees
-Nitrogen contribution from irrigation water
-Determining sprayer speed in the field
-Bacterial blast

Walnut Blight Management Using Bud Population Information
Section 18 for Manzate Flowable and Pro-Stick Fungicide
Incidents of Walnut Scale are Increasing
Ivanhoe Walnut Blight Update
Early Season Ground Squirrle Management
Clonal Paradox Walnut Rootstocks and Pest Interactions Update
Frost/Weather Forcasting Resources
Orchard Floor Management Field Day
Gopher and Ground Squirrel Control in Orchard Crops Field Meeting

Encouraging Prune Size and Quality
Frost Protection
Maximizing Grower Profit in Tough Times
High Temperatures at Bloom Reduces Fruit Set
Fungicide Efficacy and Treatment Timing Chart for Prune
Meeting Announcement: Sutter/Yuba Prune Day-March 1, 2011

Mark your calendar on January 21, 2011 for Tehama's annual Walnut Day. Topics being presented and registration information are enclosed. Come hear the latest information and developments regarding the walnut industry. Please register by January 14th  on-line at http://cetehama.ucdavis.edu/  go to "Orchard Crops" then go to "Meetings and Workshops".
If you are not able to attend watch for the power point presentations to be posted at the same website location above.
Hope we see you there!

Also "Save the Date" for Prune Day being held on February 4th. You can register online for this meeting at the same location as above.

-Almond Board Conference in Modesto - Dec. 8 & 9
-Understanding and Applying Information from a  Soil Test: Part 3
-Hull Rot Review
-Fall Nutrition Management
-Why dormant spray Almonds?
-Looking Back at 2010 Leaf Diseases
-Almond Pollination with Blue Orchard Bees Workshop Announcement 

- Scale Pests in Prune Orchards and Keeping a Balance of Natural Enemies to Control Them.
- Prune out Cytospora Cankers to Reduce Disease
- Fall Spray for Prune Aphid Management
- Using High Oil Rate before Bloom: Why do it?

--Preparing Young Walnut Trees for Winter.
--Controlling Glyphosate-Resistant Weeds in Orchards with Rely: Understanding the Issue and Managing the Solutions.
--Using Ethephon to Accelerate and Enhance Harvest in 2010.
--Common Causes and Photos of Yellowing Walnut Trees
--Why Are Some Individual Young Walnut Trees Truning Yellow and Not Growing.
--Potassium Deficiency in Walnuts.

Schedule and Registration Forms

Zinc as an Orchard Management Tool
Late Fall, a time for Potassium Soil Applications
Hand and Mechanical Pruning Comparisons for French Prune
World Prune Situation

What Can You Do Now to Produce the Largest Prunes Possible?
Gopher Control...Better Late than Never
Fruit Brown Rot Management for Prunes
Harvest Timing for Sutter
Prune- Times Searches for Webspinning Mites

Young Trees Turning Yellow and Not Growing
Planting a Successful Annual Reseeding Cover Crop
Managing Walnut Harvest for Quality
Site Preparation for Walnut Planting
Fumigation Guidelines
Meeting Announcement

Checking Your Annual Report Card
Insect & Mite Management in Prune 2007
Bloom Fungicides and Disease Resistance
Efficiacy & Timing of Fungicides
Prune Treatment Timing
Considerations for In-Season Nutrition of Prunes

Tehama County Prune Day Announcement

University of California Cooperative Extension Budget Updates
Stategic Planning/Listening Session
Walnut Day
Prune Day