Fruit & Nut Newsletter

• 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 

 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

• 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

• 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

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

• 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

19th Annual TEHAMA WALNUT DAY   

Friday -February 1, 2012

Registrations Due: January 31, 2013

To Register online, click here   2013 Tehama Walnut Day

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

Registrations due by January 31, 2013

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