Citrus, Subtropical Horticulture, Pistachios

• Effectiveness of Asian citrus psyllid management in huanglongbing treatment zones in residential Southern California
• Managed honeybees in a wet year
• Threats to citrus orchards in California by synergistic effects of dry root rot and phytophthora root and crown rot
• Microbial Safety in Avocado Farms
• How Much Fruit is Up there?
• Tiny Troublemakers: How Geminiviruses are affecting California's Crops
• Citrus Leprosis Disease – Staying alert on potential threat to California’s citrus industry

• IRCHLB?
• Pocket Gopher Management
• Phytophthora Diseases of California Citrus
• Airblast Sprayers
• Temperature Inversion Data Helps Guide Frost Responses
• Bodil Cass - New Subtropical Fruit IPM Specialist

• Avocado Sunblotch Viroid Disease and Challenges to Tackle
• Citrus yellow vein clearing virus, a new citrus pathogen identified in the San Joaquin Valley of California
• A pictorial guide to rind scarring damage on mandarins and sweet orange published!
• Insects in Common to Avocado and Introduced Habitat Gardens

• Introducing Fatemeh Khodadadi Assistant Professor of Extension and Plant Pathologist
• Agave Mites:  A Tiny Menace
• New pest in young avocado orchards
• Planting Avocados
• One, one hundred, one thousand
• UCR Citrus Day, March 2, 2023

• Mycorrhizae:  An Underground Support Network for Trees
• Notes on Applying Gibberellic Acid (GA3) to Navel Orange and other Citrus in the San Joaquin Valley of California
• Saline Waters - A Growing Problem
• 35th Anniversary of the Nematode Quarantine Facility at the University of California Riverside 

• Natural enemies have significantly suppressed Asian Citrus Psyllid populations in southern California
• Synergized IPM of Argentine and biocontrol of sap sucking pests with biodegradable hydrogels, infra-red sensors, and cover crops in commercial citrus orchards
• Irrigation Stress and Early-Navel Fruit Maturity
• High Density Citrus Planting
• Eric Mussen, Apiculturist Passes 

• Phytophythora diseases associated with citrus in California
• Is it root rot? Or? The 12 signs of Avocado Root Rot
• New avocado irrigation study
• GEM vs Hass?
• Area-Wide Treatment of ACP 

• Black Fig Fly, New invasive pest
• Branch canker and dieback diseases associated with citrus in California
• Caloptilia, no longer a new pest
• Link to Volume 20, Summer 2021 

• Progress in Developing Mechanical Harvesting for California Black Ripe 'Manzanillo' Table Olives
• Developing a Nitrogen Fertilizer Plan for Olive Orchards
• Should I Pay for Avocado Pollination Services?
• Collaboration is Key to Saving Kern County Citrus
• Are Finger Limes Just Another Fad? 

• Avocado Establishment Costs
• Soil Analysis
• Healthy Roots, Healthy Trees
• Avocado Weed Control
• Salt Leaching 

• In memoriam:  George Goodall
• Promoting best practices for safe, economical and environmentally sound pesticide application with minimum environmental risks
• South American Pal Weevil:  Update
• Lemon establishment and production costs and profitability analysis in Ventura County, 2020
• Brief update on ACP/HLB in California with emphasis on the San Joaquin Valley   

• Proactive Management of the Avocado Seed Weevil, Heilipus lauri
• False Chinch Bug in New Avocado Plantings
• Snapshot:  The Mexican Date Industry
• Removing Avocado Suckers with Glyphosate
• UC Ag Experts Talk

• An Automated Delivery System for Therapeutic Materials to Treat HLB Infected Citrus
• On-Farm Research
• Citrus Dry Root Rot
• Dr. Beth Grafton-Cardwell to Retire
• What are the UC Ag Experts Talking About?
• Memorial to Dr. Travis Bean

• Leveraging the Genomic Landscape of Avocado for Breeding Purposes
• Fresh Market Raspberry in California
• Weed Management in Citrus Orchards 

• A "boring" problem that's generating a big interest in southern California
• How ants can be "good" in ag production systems
• Is Eucalyptus a Safe Material for Mulching Trees?
• Botryosphaeria Gummosis and Dieback of Citrus
• The online Lucid Key, Thrips of California has been updated      

• Introducing Your New Information Source for CDFA grants, Kern and Ventura Counties
• Spotlight on SWEEP in Citrus
• Low Pressure Guide to Low-Flow Irrigation Scheduling
• The So-Called "Leaf Fleck" Virus Diseases of Citrus 
• Replanting Trees in Mature Citrus Groves
• What About Planting Lemons in Kern County? 

• Distinguishing Between Symptoms of Drought and Root Rot in Avocado
• Avocado Trunk Cankers
• Viruses Are Our Friends-and Maybe for Citrus Too
• Ground Squirrel and Other Vertebrate Control
• Meet our new Citrus Specialist at UC Riverside/Lindcove
• Meet our new Extension Tree Crops Spray Application Engineer
• UC Ag Experts Talk    

• California Citrus Network: an online forum
• High Density Planting Production: A Chilean Perspective
• Avocado Brainstorming 2018
• Meet our new subtropical crops specialist at UC Riverside  

• Native Pollinators of California Avocado as Affected by Introduced Pollinator Gardens
• Which Way World Avocados?
• Evaluating Cost Effectiveness of High Density Planting of Avocados: Experiment on Water and Pruning
• Herbicide injury in avocado

• A Taste of Coffee
• Colletotrichum Shoot Dieback: A New Disease of Citrus in California
• Successfully Irrigating Potted Trees
• An Update on Huanglongbing Disease of Citrus in California 

• South American Palm Weevil is threat to Coachella Valley Date and Ornamental Palm Growers
• Template for Estimating Value of Tree Loss
• After the Fire and Before the Rain, What to Do

TOPICS IN THIS ISSUE:

• Ah, Rats!
• So You Want To Install Soil Moisture Meters?
• Notes on Applying Gibberellic Acid (GA) to Navels in the Southern San Joaquin Valley of California
• Fall Leaf Tissue Sampling
• FREE! Citrus: UC IPM Pest Management Guidelines

• Why has California red scale been so difficult to control?
• Navel Orange Nitrogen Fertilization
• Recent advances in understanding the history of olive domestication

Volume 15, Issue 1

• Blast from the Past-An Old Spacing Trial Revisited
• Shoot and Twig Dieback of Clementine, Mandarin and Navel Orange Varieties in California
• New Crops, Also Known As....
• A Comment from the Citrus Research Board on the Upcoming Referendum

Volume 14 No. 4

• Real-Time Sensor For Early Detection of HLB
• 2016 International Citrus Conference
• Management of Ambrosia Beetles in California Avocados
• An Overview of Mango

Volume 14   No.2

Volume 14  No. 1

Volume 13  No. 4

Volume 13  No. 3

Volume 13 No. 2

Volume 13 No. 1        February - April, 2015

Centennial Celebration - Thursday, August 21, 2014 - Kern Ag Pavilion

Kern Spring Citrus Meeting

Thursday, May, 2, 2013, 1:00 p.m. to 4:45 p.m.

UCCE Kern Conference Room

UC Riverside Citrus Day For Industry

Thursday, January 31, 2013 - 9 a.m. to 3:30 p.m.

UCR Agricultural Operations, Riverside, California

Topics in Subtropics Newsletter contents:

-Vertebrate Damage
-Chemical Thinning of Olives
-Vertibrate Damage
-Tips on Producing the Earliest Citrus in the San Joaquin Valley
-Herbicide Registration Chart
-Resource and Market Information for Enterprise Selection

-Organic Herbicides:  Do They Work?
-Snake Oil:  Horticultural Myths and Legends
-Success Story before there is a problem

• Young Orchard Irrigation and Nutrient Management Workshop
• Wednesday, June 5, 2024 at UCCE Kern County Conference Room
• See attached for agenda and registration link - CEU Credits approved
• Workshop Link

• Effects of Elevated CO₂ Concentrations of Yields of Agricultural Crops
• Friday, May 12, 2023 at 8:00am at the UCCE Kern County Office
• Field demonstration of commercial application following presentation
• See attached for details

• Virtual Event - September 9-10, 2021
• See attached for Workshop Agenda and Registration Link

• Upcoming Virtual Vertebrate Pest Webinar
• Three 2-hour sessions, March 30, March 31, and April 1
• Continuing Education Credits available
• See attached for agenda and registration link 

• CRB Funded Researcher's Request for Help from Growers/PCA's
• See attached for information 

• Friday, March 13, 2020 from 9:00am - 11:00am
• Zoom Video/Audio Conference Call
• Support tool for planning and evaluating spray application in citrus
• CEU's applied for from California DPR
• See attached for links to agenda and registration

• Kern County Spring Citrus Meeting
• Friday, March 8, 2019 at UCCE Kern County Office
• See attached agenda 

• Scientific Irrigation Scheduling in Permanent Crops
• Links That You Can Use

• Citrus Research Board and UC Cooperative Extension
• Tuesday, June 26, Wednesday, June 27, Thursday, June 28
• See attached for locations and details  

• Citrus Thrips Field Day at Lindcove, Tuesday May 1st
• Got Voles? Perhaps anthraquinone is the answer.

• Citrus Growers Education Seminar Series
• June 27th, June 28th and June 29th
• See attached for schedule and locations  

• Water Management Strategies For Perennial Crops With Limited and Impaired Water Supplies
• January 12th and January 13th in Modesto, CA

Weekly Crop ET Update

Asian Citrus Psyllid (ACP)

Kern County Area-wide Management Meeting -  Thursday, March 12, 2015 @ 1:30 p.m.

UC Cooperative Extension Kern County Auditorium, 1031 S. Mt. Vernon Avenue

Centennial Celebration - Thursday, August 21, 2014 - Kern Ag Pavilion

Irrigated Lands Regulatory Program (ILRP) Update & Certification Training

Workshop flyer with corrected contact information for Brian Marsh, 661-868-6210

Early Frost - Special

Kern Spring Citrus Meeting

Thursday, May 2, 2013, 1:00 p.m. to 4:45 p.m.

UCCE Kern Conference Room

UC Riverside Citrus Day For Industry

Thursday, January 31, 2013 - 9 a.m. to 3:30 p.m.

UCR Agricultural Operations, Riverside, California

Kern Citrus and Subtropical Fruit Newsletter

Kern Spring Citrus Meeting
Thursday, April 19, 2012

-Save the Date:  Kern Spring Citrus Grower Meeting, Thursday, April 19, 2012
-A Decade-Long Success Story!
-Wind, Rain and Collectotrichum - a Formula for Citrus Tree Defoliation
-Most of Kern County is not in the Citrus Belt
-Sooner or Later, Scion-rootstock Problems will show up
-Does applying all of the Season's Nitrogen Early in the Season Promote Earlier Fruit Maturity?

Thursday, August 25, 2011
Kearney Agricultural Center
and
Friday August 26, 2011
Exeter Memorial Building

• Young Orchard Irrigation and Nutrient Management Workshop
• Wednesday, June 5, 2024 at UCCE Kern County Conference Room
• See attached for agenda and registration link - CEU Credits approved
• Workshop Link

• 'UC Westside' - A New Cultivar Release Part of a New Team to Pollenize 'Kerman' Better
• Plant Nutrition is Seldom the Cause of Unsatisfactory Pistachio Yields in the Southern San Joaquin Valley of California
• Craig Kallsen Retirement 

• Can a Table of Weather Variables from an Experimental Trial (2014-2022) Teach Us Anything about the Adaptation of Pistachio to the climate of the San Joaquin Valley of California?

• 2023 Statewide Pistachio Day
• Wednesday, January 18, 2023
• Visalia Convention Center
• See attached for details and registration link

• Monday, November 14, 2022
• UCCE Kern County Conference Room
• 1031 S. Mt. Vernon Avenue, Bakersfield
• See attached for agenda and registration link

• Some odd observations of the 2022 harvest
• Unusual Gopher Damage in Bearing Pistachio Trees
• Epicarp Lesion versus Internal Kernel Discoloration (IKD) in Pistachio
• "Off-type" Golden Hills Trees Found in Some Orchards. A Bud Sport is Suspected.

• Advances in Pistachio Water Management Workshop
• July 7, 2022 at International Agri-Center, Tulare
• See attached agenda with registration link 

• Hot Time in Kern County during Kerman Bloom:  A Heads Up!

• 2022 Statewide Pistachio Day
• Wednesday and Thursday, January 19-20, 2022
• Conference is Virtual 
• See attached for details and registration link

• Kearney Agricultural Research and Extension Center, Parlier, CA
• November 30, 2021 - 12:00pm to 4:00pm
• See attached for registration link

• 2020-2021 Fall and Winter Chilling for Pistachio
• Why the UCBI Rootstock is Salinity Tolerant

• Upcoming Virtual Vertebrate Pest Webinar
• Three 2-hour sessions, March 30, March 31, and April 1
• Continuing Education Credits available
• See attached for agenda and registration link 

• Look Out for Pistachio Winter Juvenile Tree Dieback (WJTD) at Leaf-Out
• Get the Early-Blooming Cultivars Pruned Earlier!
• The Dormant Period is a Good Time to Leach Salt but Should be Conducted with Nitrogen in Mind 

• UC ANR Virtual, Multi-Day Pistachio Production Short Course in November 2020
• See notice for registration and agenda links 

• Pistachio Irrigation Monitoring and Scheduling Demonstration
• See link attached for complete data and demonstration

• Unusual Pistachio Tree Bloom and Leaf Canopy Development in Kern County  

• Pistachio Trees in Kern County Signaling a Great Winter Rest Period! 

• 51st Tri County Walnut Day - February 6, 2020
• Fresno State Walnut Rootstock Survey
• 2020 Statewide Pistachio Day - January 22, 2020
• See attached for information and registration links 

• 2020 Statewide Pistachio Day
• Wednesday, January 22, 2020
• Visalia Convention Center, Visalia, CA
• See attached for details and registration link

• Tuesday, November 5 - Thursday, November 7, 2019
• Field Tour Friday, November 8, 2019
• Visalia Convention Center, Visalia, CA
• See flyer for course information and registration link

• Golden Hills and Leaf Scorch

• Getting the Most Out of a Golden Hills Pistachio Harvest 

• Winter Juvenile Tree Dieback (WJTD) - a Problem in Pistachio in the San Joaquin Valley

• Pistachio Crop Insurance Plan Listening Sessions for Growers, Insurance Company Staff and Agents 
• Monday, March 11 at Kern Ag Pavilion 
• See more for other locations and details

• Dormant Training of 'Golden Hills'
• A Blast From The Past!
• Running Out Of Time To Get Help From Mother Nature In Getting Those Pre-Emergent Herbicides Applied
• Insufficient Spring Irrigation Increases Abnormal Splitting of Pistachio Nuts    

• Pistachio Evapotranspiration Project Meeting
• Tuesday, January 22, 2019
• Kearney Ag Research and Extension Center, Parlier
• See agenda and RSVP contact information

• 2019 Statewide Pistachio Day, Wednesday, January 16th
• See agenda and registration link
• 2018-2019 Winter Rest Calculation  

• Meetings concerning USDA Tree Assistance Program (TAP) assistance for growers affected by Pistachio Bushy Top Syndrome

• Scientific Irrigation Scheduling in Permanent Crops
• Links That You Can Use

• Wednesday, May 30, 2018
• Harris Ranch in Coalinga, California
• Online registration
• See attached for workshop and field schedule

• 2018 University of California's Pistachio Day
• Wednesday, January 17, 2018  -  7:45 a.m. to 4:00 p.m.
• Visalia Convention Center - Visalia, California
• Please see newsletter for information and agenda

• November 28th - 29th, 2017
• Kern County Farm Bureau
• See attached links for agenda and registration 

• Pistachio Short Course Coming to Visalia, November 14-16, 2017
• Kern County Harvest Timing, Yield and etc.
• Notes on planting Gumdrop  

• Wednesday, July 19, 2017 - 8:00 a.m. to 12:00 p.m.
• Kings County Fairgrounds
• See attached for registration and event information

• New Lab Opens for Testing for Rhodococcus Bacteria
• See attached for information 

• Maybe We Should Try Calculating Something Else?
• Calculate your predicted yield
• Better Safe than Sorry?
• Drying Weeds Mean More Pests on and around Pistachio

• Tuesday, February 28, 2017
• 31000 Kimberlina Road
• See attached for details

• UCANR Pistachio Production Manual Now Available
• Botryosphaeria Panicle And Shoot Blight Risk Higher In Wet Years
• Botrytis Blossom And Shoot Blight At Bloom
• Statewide Pistachio Day 2017

• Please see attached for more information

• 2017 University of California's Pistachio Day
• Wednesday, January 18, 2017  -  7:45 a.m. to 4:00 p.m.
• Visalia Convention Center, Visalia, California  
• Please see newsletter for information and agenda

• Smiling Trees

• Almond Orchard Grinding Demonstration
• Tuesday, February 16, 2016 - Chowchilla, CA
• See attached flyer

• Second Call for Statewide Pistachio Day 2016 - January 20, 2016
• Pistachio Chilling Accumulation on Right Path in Kern County
• Basic Pistachio Nutrition with Tips for Southern San Joaquin Valley Growers   

• Pistachio Day -  January 20, 2016  -  8:00 am to 4:40 pm                                    Visalia Convention Center

• Water Management Strategies For Perennial Crops With Limited and Impaired Water Supplies
• January 12th and January 13th in Modesto, CA

As promised in my recent newsletter regarding the upcoming meeting on Pistachio Bushy Top Syndrome, additional information as to the location of the meeting on the Cal State Bakersfield campus appears below.

• Special Rhodococcus Edition

California Department of Food and Agriculture (CDFA)

Grapevine Registration and Certification Program

Wednesday, June 10, 2015 at 9:00 a.m. - 11:00 a.m.

University of California Cooperative Extension Kern County

1031 S. Mt. Vernon Avenue, Bakersfield, CA 93307

Weekly Crop ET Update

Evaluation of the Pistachio Pilot Crop Insurance Plan Listening Sessions for Growers and Crop Insurance Company Staff and Agents

Thursday, April 30th - Kern County 9:00 am - 11:00 am at Hodel's Country Dining

Tuesday, May 5th - Madera County 9:00 am - 11:00 am at Madera Municipal Golf Course 

Pistachio Bushy Top Syndrome and Rhodococcus Event at Kern Agricultural Pavilion

Wednesday, April 8, 2015 - 9:00 a.m. to 11:30 a.m.

Irrigating Pistachio

Leaffooted Bugs

Kern Spring Irrigation Workshop - Thursday, March 26, 2015

UCCE Kern County Conference Room, 1031 S. Mt. Vernon Avenue, Bakersfield, CA

Pistachio Bushy Top Syndrome - Questions and Answers

We regret to advise that the February 2015 edition of the Pistachio Notes Newsletter was inadvertently re-posted to our website and notification emails announcing the "new" edition were mistakenly sent to subscribers of the newsletter.  The duplicate post has been deleted from our website and there is no new edition of the Pistachio Notes Newsletter being published at this time.

We apologize for any confusion this mistake has caused.

Centennial Celebration - Thursday, August 21, 2014 - Kern Ag Pavilion

Drought Resources

Rhodococcus fascians Associated with some UCB-1 Rootstocks

Irrigated Lands Regulatory Program (ILRP) Update and Certification Training

Workshop flyer with corrected contact information for Brian Marsh, 661-868-6210

Phytoplasmas

2014 Statewide Pistachio Day                                                                             Wednesday, January 29, 2014, 8:00 a.m. to 1:00 p.m.

Visalia Convention Center, 303 East Acequia Avenue, Visalia, CA

Gill's Mealybug in Pistachios, Thursday, August 29, 2013

2013 Annual Pistachio Day

Visalia Convention Center

Wednesday, January 13, 2013

2012 Annual Pistachio Day
Visalia Convention Center
Wednesday, January 18, 2012