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Topics in Subtropics Newsletters

Newsletter

Regional newsletter for Southern California covering production information for citrus, avocado, and other subtropical crops

Issue Articles Type Date Added
Vol 19, Winter 2021

TOPICS IN THIS ISSUE–Ben Faber, Farm Advisor

  • Avocado Establishment Costs
  • Soil Analysis
  • Healthy Roots, Healthy Tree
  • Avocado Weed Control
  • Salt Leaching
PDF 3/9/21
Vol 18, Fall 2020

TOPICS IN THIS ISSUE; Greg Douhan, Farm Advisor

  • 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
PDF 11/20/20
Vol 18, Summer 2020

TOPICS IN THIS ISSUE: Ashraf El-kereamy, Editor

  • Proactive Management of the Avocado Seed
    Weevil, Heilipus lauri (Coleoptera:Curculionidae)
  • False Chinch Bug in New Avocado Plantings
  • Removing Avocado Suckers with Glyphosate
  • Snapshot: The Mexican Date Industry
  • UC Ag Experts Talk
PDF 10/5/20
Vol 22, Winter, 2020

TOPICS IN THIS ISSUE – Sonia Rios, Editor

Rattlesnakes in California Orchards: Growers Beware (Sonia Rios and Roger A. Baldwin)
• What’s All The Fuss Over Spotted Lantern Fly? (Mark Hoddle)
• Frost Freeze Recovery from February 2020 (Sonia Rios and Ben Faber)
• Covid Virus Resources
• New Guidelines for Laurel Wilt Disease

PDF 5/4/20
Vol.21, Fall, 2019

TOPICS IN THIS ISSUE – P. Rolshausen, Editor

  • Leveraging the Genomic Landscape of Avocado for Breeding Purposes (Vanessa Ashworth and Philippe Rolshausen)
  •  Fresh Market Raspberry in California (Natalie Solares and Alexander Putman)
  •  Weed Management in Citrus Orchards (Travis Bean)

 

PDF 2/5/20
Volumn 20, Summer 2019

TOPICS IN THIS ISSUE Monique Rivera, Editor

  • A "boring" problem that’s generating a big interest in southern California (Deena Husein)
  • How ants can be "good" in ag production systems (Madison Sankovitz)
  • Is Eucalyptus a Safe Material for Mulching Trees? (Ben Faber & James Downer)
  • Botryosphaeria Gummosis and Dieback of Citrus (Dee Vega)
  • The online Lucid Key, Thrips of California, has been updated (Mark Hoddle)

 

PDF 1/14/20
Vol.19 Spring-2019

TOPICS IN THIS ISSUE                                                                        

  • 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?

 

PDF 8/21/19
Vol.18 Winter-2019

TOPICS IN THIS ISSUE:

  • 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

 

PDF 4/22/19
Vol.17 Fall-2018

TOPICS IN THIS ISSUE:

• California Citrus Network: an online forum to facilitate communication and
information exchange regarding California citrus
• High Density Planting for Avocado Production: A Chilean Perspective
• Avocado Brainstorming 2018
• Meet our new subtropical crops specialist at UC Riverside

PDF 1/10/19
Vol.17 Summer-2018

TOPICS IN THIS ISSUE:

  • 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 avocados
PDF 9/18/18
Vol.17 Spring-2018

TOPICS IN THIS ISSUE:

  • 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
PDF 1/10/19
Volume 16, Winter 2018

TOPICS IN THIS ISSUE:

  • South American Palm Weevil is a Threat to Coachella Valley Date and Ornamental Palm Growers
  • A Template for Estimating Value of Tree Loss
  • After the Fire and Before the Rain, What to Do
PDF 2/26/18
Vol.15 Fall-2017

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
PDF 1/4/18
Vol.15 No.1 Jan-March, 2017

IN THIS ISSUE:

  • Revisiting an old study
  • Shoot and Twig Dieback
  • Alternative Crops
  • Referendum Comments

 

PDF 1/4/18
Vol. 14 No. 5 June, 2017

TOPICS IN THIS ISSUE:

  • Why has California red scale been so difficult to control?
  • Navel Orange Nitrogen Fertilization
  • Recent Advances in Understanding the History of Olive Domestication
  • Upcoming UC Olive Center Events
PDF 6/16/17
Vol.14, No.4 Nov, 2016

IN THIS ISSUE:

  • Real-Time Sensor for Early Detection of Citrus Huanglongbing (HLB)
  • The 2016 International Citrus Conference
  • UC Riverside Scientists Evaluate Trunk Injections of Pesticides for the Management of Ambrosia Beetles in California Avocados
  • An Overview of Mango
  • Water Based Latex Paint as a Means to Track Ambrosia Beetle Activity on Infested Trees
PDF 1/5/18
Vol.14, No.1 Jan-March, 2016

TOPICS IN THIS ISSUE:

  • Avocado Cultivars
  • Botanical Races and Genetic Footprints
  • Drought Induced Problems in Our Orchards
PDF 1/5/18
Vol.13, No.4 Oct-Dec, 2015

TOPICS IN THIS ISSUE:

  • Blossom End Rot of Citrus
  • Using Organic Herbicides in Production Fields and Non-Crop Areas
  • Pocket Gopher and Ground Squirrel Control: Management Options for Citrus and Avocado Groves
PDF 1/5/18
Vol.13, No.3 Fall 2015

 

INTRODUCTION AND NEW RESEARCH:

Predicting Water Demand Along the Coast Versus in the Valley ?

Avocado Farm Families Still Healing, More Than a Decade Later: What Lessons Have We Learned About Fire Readiness and Prevention? ?

Olive oil chemistry – Let’s talk about quality

Announcements:

Breakfast IPM Meeting: Citrus IPM and Chlorpyrifos Regulatory Update

Macadamia Association Annual Field Day

 

PDF 9/4/15
Vol.13 No.2 Summer 2015

IN THIS ISSUE:

INTRODUCTION AND NEW RESEARCH

Did a Newly Introduced Fukumoto Navel Budline from Spain Perform Better than the California Budline in the San Joaquin Valley?

• What values should olive growers use for estimating crop nitrogen removal at harvest?

UPCOMING COURSES

UC Davis Olive Center: UC Master Milling Certificate Course

PDF 6/22/15
Vol.13 No.1, Feb-April, 2015

IN THIS ISSUE:

Polyphagous shot hole borer (PSHB) update for avocado growers

Weed Management in Citrus

UC Davis Olive Center: Sensory Evaluation of Olive Oil Certificate Courses

Water Terminology

Olive Quick Decline in Italy is associated with unique strain of Xylella fastidiosa

PDF 3/31/15
Vol.12 No.3 Sep-Dec, 2014

IN THIS ISSUE:

  • The Clegg Collection: A valuable resource
  • Impact of recent drought conditions
  • Zinc & Phosphorus
  • Recent findings on Polyphagouse shot hole borer/Fusarium dieback on avocado
PDF 12/9/14
April 7, 2014

The Spanish Avocado Industry

Strategizing for Water Cutbacks-Avocado and Citrus

California Agricultural Production Statistics 

Maintaining the Citrus Orchard with a Reduced Irrigation Allotment

The 2014 Drought in California

 

 

 

PDF 4/7/14
2013, Vol. 11, No. 3

A Caution on Free “Compost/Mulch”

Oriental Fruit Fly Affects Green Waste Movement in Southern California

Olive Tree Phenology

Training and Pruning of Cherimoya

High Density Avocado Installation: Use a quick cost study to make a decision

Volatile Organic Compound (VOC) Emissions from Pesticides

PDF 10/15/13
2013, Vol. 11, No. 2

Cultural Practices to Reduce Pest and Disease in Avocado and Citrus

Polyphagous Shot Hole Borer in California

Electronic “sniffer” for Detecting HLB

Important Information Sources Related to Fire Management and Protection

Bee kill in Oregon – A reminder of pesticide use

 

PDF 7/15/13
2013, Vol. 11, No. 1

Costs of Orchard Establishment and Production Summary for Avocados in California

Huanglongbing Conference, Florida

Going Out of Business in the Citrus Business – Doing it the Right Way

The Avocado: Botany, Production and Uses, 2nd Edition

Winter Irrigation Update from Israel on the Polyphagous

Shot Hole Borer and Fusarium symbiont

PDF 3/26/13
2012, Vol. 10, No. 3

Asian Citrus Psyllid Quarantines

Decline of Oranges and Mandarins

Mitigation of Alternate Bearing in Olive

Alternate Bearing in Mandarin 

 

 

 

PDF 1/3/13
2012, Vol. 10, No. 2

Simazine Degradation in CA Citrus Orchards

Lime-induced Iron Chlorosis 

Avocado Trunk Cankers 

Asphyxiation 

Tree Wraps 

Stem and Leaf Blight 

PDF 9/21/12
2012, Vol. 10, No. 1

Quarantine for Huanglongbing Declared in Hacienda Heights Section of Los Angeles County 

An Outline of Management Options for HLB in Florida 

Avocado Farming with High Priced Water 

Soil Moisture Sensors

 

PDF 9/20/12
2011, Vol. 9, No. 2
Vertebrate Damage
Chemical Thinning of Olives
Tips on Producing the Earliest Early Citrus in the San Joaquin Valley
Herbicide Registration Chart 
Resource and Market Information for Enterprise Selection
PDF 1/23/12
2011, Vol. 9, No. 1

Organic Herbicides: Do They Work?

Snake Oil: Horticultural Myths and Legends

Success Story Before There is a Problem

PDF 8/15/11
2010, Vol. 8, No. 3 An update on the threat of Asian citrus psyllid and Huanglongbing for citrus The Search for Salinity Tolerance in Avocado: An Update on a Frozen Rootstock Trial Activator Spray Adjuvant Selection: Crop Spraying Conservation Programs Deadline Set For 2011 Funding: NRCS-Natural Resources Conservation Services News Release PDF 10/20/10
2010, Vol. 8, No. 2 NRCS Announces Initiative to Improve Agricultural Energy Efficiency Periwinkle Provides Ammunition In The War On Citrus Plague Do we really need Scientific Irrigation Scheduling? Farmers Should Make a Skin Check a Priority Feeding Habits of California Ground Squirrels and their Role in Management Squirrel Calendar - English Squirrel Calendar – Spanish PDF 6/3/10
2010, Vol. 8, No. 1 Microirrigation, Fertilizers and Clogging Chemical Treatment to Prevent System Clogging Cultural Practices to Reduce Pest and Disease in Avocado and Citrus Laurel Wilt Update The Parent Washington navel orange tree—Part2. Its decline and recovery PDF 6/3/10
2009, Vol. 7, No. 4 The state of Dothiorella Canker on Avocado in California The Parent Washington navel orange tree- It’s first yearsvChester N Roistacher Retired Citrus Virologist, University of California, Riverside Mechanical Harvesting of California Table and Oil Olives PDF 1/22/10
2009, Vol. 7, No. 3 'Valentine' A Recently Released Anthocyaninpigmented Pummelo Hybrid Developed at the University of California Riverside The University of California - Riverside Citrus Variety Collection and Citrus Clonal Protection Program Websites Provide Information, Photographs, Fruit Quality Data and More Water Infiltration Problems Attention San Joaquin Valley Citrus Growers: What Do You Plan to Do If It Comes For You? PDF 10/21/09
2009, Vol. 7, No. 2 Ag Waivers for San Diego County Spray Adjuvants; what's in a Name? Strategizing for Water Cutbacks is there a Logical Method? PDF 7/22/09
2009, Vol. 7, No. 1 Avocado Research in Ventura County Laurel Wilt Disease Conference and Tour in Florida and Georgia Managing Insecticide Resistance will be Key to the Future of Effective Citrus Pest Management Smart Sprayers Make Sense PDF 4/1/09
2008, Vol. 6, No. 4 Dothiorella Leaf and Stem Blight Pathogens: Botryosphaeria and Fusicoccum spp. Irrigation Stress and Early-Navel Fruit Maturity PDF 1/22/09
2008, Vol. 6, No. 3 New Registration for the Biocontrol Plantshield HC Against Hyphoderma Gummosis of Citrus Atmometers for Irrigation Management Asian Citrus Psyllid Has Arrived in San Diego County PDF 9/16/08
2008, Vol. 6, No. 1 Evaluation of Insecticides for Citrus Thrips Control, Using Blueberries as a Crop Surrogate The Silver Mite Workgroup Just Because Spring is a Good Time to Prune Navel Orange Doesn't Mean You Should Brevipalpus Mites and Citrus Leprosis Virus Disease PDF 4/18/08
2007, Vol. 5, No. 4 Grower Cooperators Deserve Recognition for Service to Their Industries Citrus Leaf Miner Update Stubborn Disease of Citrus in California New Avocado Publication PDF 2/2/10
2007, Vol. 5, No.3 Leaf Analysis; Citrus Leaf Minor Update; Are all Phosphourous Products the Same; Analyzing the Farm Business: Most common Financial Statements and Ratios PDF 7/29/08
2007, Vol. 5, No. 2 Update on Lychee and Longan Field Trials and Plantings in Southern California Loopers in Avocados-A Note from San Diego County The 2007 Citrus Tristeza Virus Situation at the University of California Lindcove Research and Extension Center Errata: Honey Bees in California PDF 7/10/08
2007, Vol. 5, No. 1 An Introduction to the Problem of Honey Bees and Mandarins Birds to it; Bees do it, Even Citrus with Seeds do (did) it. Part 1-The Biology Behind Seedlessness in Mandarins Honey Bees in California PDF 8/24/09
2006, Vol. 4, No. 4 Boron is High in Many Southern San Joaquin Valley Citrus Trees Armillaria Root Rot Soil Test Kits Using Evapotranspiration (ETo) for Scheduling Irrigation-An Improvement on "Guessing" Subtropical Crops Program Coverage in Riverside County PDF 12/20/07
2006, Vol. 4, No. 3 The Positive Points Systems for Citrus: What is it and Why Should a Grower Get Involved? Getting Horseweed and Hairy Fleabane Back Under Control in Central California A Comparison of the New "Sequoia" Fig Cultivar A Celebration of Agricultural Research and Extension PDF 10/29/10
2006, Vol. 4, No. 2 Citrus Research Growers' Seminars 2006 Dry Root Rot in Citrus Earwigs Flying Under the Radar of Many Citrus Pest Control Advisors New Tools Available for Spider Mite Management in 2006 Product Testing PDF 2/7/11
2006, Vol. 4, No. 1 Liquid-Sugar Ant Bait Stations are Nearing Registration for Agriculture Huanglongbing, Citrus Greening: Preparing For the Future Citrus Herbicide Charts & Tables Bear Citrus Thrips Resistance in Mind When Deciding Whether & How to Treat in 2006 PDF 5/24/11
2005, Vol. 3, No. 4 UC RIVERSIDE CITRUS VARIETY COLLECTION DIAPREPES ROOT WEEVIL INFESTATIONS FOUND IN SOUTHERN CALIFORNIA A RECENT EXOTIC PEST INVASION DIAPREPES QUARANTINE DETAILS PDF 1/25/10
2005, Vol. 3, No. 3 Little Evidence to support the use of foliar applied nutrients in avocado; Web sites that can help your production; Cutoff deadline set for landowners applying for 2006 EQIP funds; Intensive training course on “How to export your food or agricultural product”; Cal/OSHA heat advisory PDF 5/24/11
2005, Vol. 3, No. 2 Citrus Leafminer Ag Waivers Supersweet Satsumas PDF 5/24/11
2005, Vol. 3, No. 1 Inside this issue: Phosphorous Acid in Avocado Production Should it be a Cultural Recommendation? Emergency Farm Loans New 24C Registration of Isopropyl Ester 2,4-D (Alco Citrus Fix) for Fruit Size Increase of Mandarins and Mandarin Hybrids in California Asphyxiation Dweet Mottle Virus and Citrus Leaf Blotch Virus PDF 9/3/09
2004, No. 4 Avocado Lace Bug The First Rule of Growing Citrus in the San Joaquin Valley: Location, Location, Location The Inland Empire Small Farm Initiative: Promoting Small Farm and Hispanic Economic Development in Riverside and San Bernardino Counties Cellulase Production by Various Sources of Mulch PDF 5/24/11
2004, No. 3 TOPICS IN THIS ISSUE: Upcoming Meetings, Deficit Irrigation, Topworking or Replanting-A Grower’s Perspective?, Weed control options for citrus PDF 12/8/09
2004, No. 2 Upcoming Meetings Mechanical Pruning and Harvesting Olives One, One Hundred, One Thousand Making Sense of Soil Moisture Checking and Sensors Think Twice Before Planting Clementine and W. Murcott Afourer Mandarins PDF 4/15/10
2004, No. 1 TOPICS INCLUDE: - Vertebrate Pests Causing Damage in Citrus - After the Fire in the Avocado Grove – Replant or Sucker Graft? - Compatibility/Seediness Among ClementineMandarins - Irrigation Scheduling - An Update of Agricultural Waivers in CA – - Water Quality Programs for Irrigated Agriculture - Integrating Admire Treatments for GWSS with - Citrus IPM in the San Joaquin Valley PDF 5/24/11
2003, No. 4 Quarterly newsletter on subtropical horticulture topics PDF 5/24/11
2003, No. 3 PDF 5/24/11
2003, No. 2 PDF 5/24/11
2003, No. 1 This newsletter covers production of citrus, avocado and other subtropical tree fruit crops. It is written by the Farm Advisors who work with subtropical crops. It will be distributed every 3 to 4 months. The UC Farm Advisors will take turns editing it. PDF 5/24/11

Regional newsletter for Southern California covering production information for citrus, avocado, and other subtropical crops

Issue Articles Type Date Added
Vol 19, Winter 2021

TOPICS IN THIS ISSUE–Ben Faber, Farm Advisor

  • Avocado Establishment Costs
  • Soil Analysis
  • Healthy Roots, Healthy Tree
  • Avocado Weed Control
  • Salt Leaching
PDF 3/9/21
Vol 18, Fall 2020

TOPICS IN THIS ISSUE; Greg Douhan, Farm Advisor

  • 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
PDF 11/20/20
Vol 18, Summer 2020

TOPICS IN THIS ISSUE: Ashraf El-kereamy, Editor

  • Proactive Management of the Avocado Seed
    Weevil, Heilipus lauri (Coleoptera:Curculionidae)
  • False Chinch Bug in New Avocado Plantings
  • Removing Avocado Suckers with Glyphosate
  • Snapshot: The Mexican Date Industry
  • UC Ag Experts Talk
PDF 10/5/20
Vol 22, Winter, 2020

TOPICS IN THIS ISSUE – Sonia Rios, Editor

Rattlesnakes in California Orchards: Growers Beware (Sonia Rios and Roger A. Baldwin)
• What’s All The Fuss Over Spotted Lantern Fly? (Mark Hoddle)
• Frost Freeze Recovery from February 2020 (Sonia Rios and Ben Faber)
• Covid Virus Resources
• New Guidelines for Laurel Wilt Disease

PDF 5/4/20
Vol.21, Fall, 2019

TOPICS IN THIS ISSUE – P. Rolshausen, Editor

  • Leveraging the Genomic Landscape of Avocado for Breeding Purposes (Vanessa Ashworth and Philippe Rolshausen)
  •  Fresh Market Raspberry in California (Natalie Solares and Alexander Putman)
  •  Weed Management in Citrus Orchards (Travis Bean)

 

PDF 2/5/20
Volumn 20, Summer 2019

TOPICS IN THIS ISSUE Monique Rivera, Editor

  • A "boring" problem that’s generating a big interest in southern California (Deena Husein)
  • How ants can be "good" in ag production systems (Madison Sankovitz)
  • Is Eucalyptus a Safe Material for Mulching Trees? (Ben Faber & James Downer)
  • Botryosphaeria Gummosis and Dieback of Citrus (Dee Vega)
  • The online Lucid Key, Thrips of California, has been updated (Mark Hoddle)

 

PDF 1/14/20
Vol.19 Spring-2019

TOPICS IN THIS ISSUE                                                                        

  • 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?

 

PDF 8/21/19
Vol.18 Winter-2019

TOPICS IN THIS ISSUE:

  • 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

 

PDF 4/22/19
Vol.17 Fall-2018

TOPICS IN THIS ISSUE:

• California Citrus Network: an online forum to facilitate communication and
information exchange regarding California citrus
• High Density Planting for Avocado Production: A Chilean Perspective
• Avocado Brainstorming 2018
• Meet our new subtropical crops specialist at UC Riverside

PDF 1/10/19
Vol.17 Summer-2018

TOPICS IN THIS ISSUE:

  • 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 avocados
PDF 9/18/18
Vol.17 Spring-2018

TOPICS IN THIS ISSUE:

  • 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
PDF 1/10/19
Volume 16, Winter 2018

TOPICS IN THIS ISSUE:

  • South American Palm Weevil is a Threat to Coachella Valley Date and Ornamental Palm Growers
  • A Template for Estimating Value of Tree Loss
  • After the Fire and Before the Rain, What to Do
PDF 2/26/18
Vol.15 Fall-2017

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
PDF 1/4/18
Vol.15 No.1 Jan-March, 2017

IN THIS ISSUE:

  • Revisiting an old study
  • Shoot and Twig Dieback
  • Alternative Crops
  • Referendum Comments

 

PDF 1/4/18
Vol. 14 No. 5 June, 2017

TOPICS IN THIS ISSUE:

  • Why has California red scale been so difficult to control?
  • Navel Orange Nitrogen Fertilization
  • Recent Advances in Understanding the History of Olive Domestication
  • Upcoming UC Olive Center Events
PDF 6/16/17
Vol.14, No.4 Nov, 2016

IN THIS ISSUE:

  • Real-Time Sensor for Early Detection of Citrus Huanglongbing (HLB)
  • The 2016 International Citrus Conference
  • UC Riverside Scientists Evaluate Trunk Injections of Pesticides for the Management of Ambrosia Beetles in California Avocados
  • An Overview of Mango
  • Water Based Latex Paint as a Means to Track Ambrosia Beetle Activity on Infested Trees
PDF 1/5/18
Vol.14, No.1 Jan-March, 2016

TOPICS IN THIS ISSUE:

  • Avocado Cultivars
  • Botanical Races and Genetic Footprints
  • Drought Induced Problems in Our Orchards
PDF 1/5/18
Vol.13, No.4 Oct-Dec, 2015

TOPICS IN THIS ISSUE:

  • Blossom End Rot of Citrus
  • Using Organic Herbicides in Production Fields and Non-Crop Areas
  • Pocket Gopher and Ground Squirrel Control: Management Options for Citrus and Avocado Groves
PDF 1/5/18
Vol.13, No.3 Fall 2015

 

INTRODUCTION AND NEW RESEARCH:

Predicting Water Demand Along the Coast Versus in the Valley ?

Avocado Farm Families Still Healing, More Than a Decade Later: What Lessons Have We Learned About Fire Readiness and Prevention? ?

Olive oil chemistry – Let’s talk about quality

Announcements:

Breakfast IPM Meeting: Citrus IPM and Chlorpyrifos Regulatory Update

Macadamia Association Annual Field Day

 

PDF 9/4/15
Vol.13 No.2 Summer 2015

IN THIS ISSUE:

INTRODUCTION AND NEW RESEARCH

Did a Newly Introduced Fukumoto Navel Budline from Spain Perform Better than the California Budline in the San Joaquin Valley?

• What values should olive growers use for estimating crop nitrogen removal at harvest?

UPCOMING COURSES

UC Davis Olive Center: UC Master Milling Certificate Course

PDF 6/22/15
Vol.13 No.1, Feb-April, 2015

IN THIS ISSUE:

Polyphagous shot hole borer (PSHB) update for avocado growers

Weed Management in Citrus

UC Davis Olive Center: Sensory Evaluation of Olive Oil Certificate Courses

Water Terminology

Olive Quick Decline in Italy is associated with unique strain of Xylella fastidiosa

PDF 3/31/15
Vol.12 No.3 Sep-Dec, 2014

IN THIS ISSUE:

  • The Clegg Collection: A valuable resource
  • Impact of recent drought conditions
  • Zinc & Phosphorus
  • Recent findings on Polyphagouse shot hole borer/Fusarium dieback on avocado
PDF 12/9/14
April 7, 2014

The Spanish Avocado Industry

Strategizing for Water Cutbacks-Avocado and Citrus

California Agricultural Production Statistics 

Maintaining the Citrus Orchard with a Reduced Irrigation Allotment

The 2014 Drought in California

 

 

 

PDF 4/7/14
2013, Vol. 11, No. 3

A Caution on Free “Compost/Mulch”

Oriental Fruit Fly Affects Green Waste Movement in Southern California

Olive Tree Phenology

Training and Pruning of Cherimoya

High Density Avocado Installation: Use a quick cost study to make a decision

Volatile Organic Compound (VOC) Emissions from Pesticides

PDF 10/15/13
2013, Vol. 11, No. 2

Cultural Practices to Reduce Pest and Disease in Avocado and Citrus

Polyphagous Shot Hole Borer in California

Electronic “sniffer” for Detecting HLB

Important Information Sources Related to Fire Management and Protection

Bee kill in Oregon – A reminder of pesticide use

 

PDF 7/15/13
2013, Vol. 11, No. 1

Costs of Orchard Establishment and Production Summary for Avocados in California

Huanglongbing Conference, Florida

Going Out of Business in the Citrus Business – Doing it the Right Way

The Avocado: Botany, Production and Uses, 2nd Edition

Winter Irrigation Update from Israel on the Polyphagous

Shot Hole Borer and Fusarium symbiont

PDF 3/26/13
2012, Vol. 10, No. 3

Asian Citrus Psyllid Quarantines

Decline of Oranges and Mandarins

Mitigation of Alternate Bearing in Olive

Alternate Bearing in Mandarin 

 

 

 

PDF 1/3/13
2012, Vol. 10, No. 2

Simazine Degradation in CA Citrus Orchards

Lime-induced Iron Chlorosis 

Avocado Trunk Cankers 

Asphyxiation 

Tree Wraps 

Stem and Leaf Blight 

PDF 9/21/12
2012, Vol. 10, No. 1

Quarantine for Huanglongbing Declared in Hacienda Heights Section of Los Angeles County 

An Outline of Management Options for HLB in Florida 

Avocado Farming with High Priced Water 

Soil Moisture Sensors

 

PDF 9/20/12
2011, Vol. 9, No. 2
Vertebrate Damage
Chemical Thinning of Olives
Tips on Producing the Earliest Early Citrus in the San Joaquin Valley
Herbicide Registration Chart 
Resource and Market Information for Enterprise Selection
PDF 1/23/12
2011, Vol. 9, No. 1

Organic Herbicides: Do They Work?

Snake Oil: Horticultural Myths and Legends

Success Story Before There is a Problem

PDF 8/15/11
2010, Vol. 8, No. 3 An update on the threat of Asian citrus psyllid and Huanglongbing for citrus The Search for Salinity Tolerance in Avocado: An Update on a Frozen Rootstock Trial Activator Spray Adjuvant Selection: Crop Spraying Conservation Programs Deadline Set For 2011 Funding: NRCS-Natural Resources Conservation Services News Release PDF 10/20/10
2010, Vol. 8, No. 2 NRCS Announces Initiative to Improve Agricultural Energy Efficiency Periwinkle Provides Ammunition In The War On Citrus Plague Do we really need Scientific Irrigation Scheduling? Farmers Should Make a Skin Check a Priority Feeding Habits of California Ground Squirrels and their Role in Management Squirrel Calendar - English Squirrel Calendar – Spanish PDF 6/3/10
2010, Vol. 8, No. 1 Microirrigation, Fertilizers and Clogging Chemical Treatment to Prevent System Clogging Cultural Practices to Reduce Pest and Disease in Avocado and Citrus Laurel Wilt Update The Parent Washington navel orange tree—Part2. Its decline and recovery PDF 6/3/10
2009, Vol. 7, No. 4 The state of Dothiorella Canker on Avocado in California The Parent Washington navel orange tree- It’s first yearsvChester N Roistacher Retired Citrus Virologist, University of California, Riverside Mechanical Harvesting of California Table and Oil Olives PDF 1/22/10
2009, Vol. 7, No. 3 'Valentine' A Recently Released Anthocyaninpigmented Pummelo Hybrid Developed at the University of California Riverside The University of California - Riverside Citrus Variety Collection and Citrus Clonal Protection Program Websites Provide Information, Photographs, Fruit Quality Data and More Water Infiltration Problems Attention San Joaquin Valley Citrus Growers: What Do You Plan to Do If It Comes For You? PDF 10/21/09
2009, Vol. 7, No. 2 Ag Waivers for San Diego County Spray Adjuvants; what's in a Name? Strategizing for Water Cutbacks is there a Logical Method? PDF 7/22/09
2009, Vol. 7, No. 1 Avocado Research in Ventura County Laurel Wilt Disease Conference and Tour in Florida and Georgia Managing Insecticide Resistance will be Key to the Future of Effective Citrus Pest Management Smart Sprayers Make Sense PDF 4/1/09
2008, Vol. 6, No. 4 Dothiorella Leaf and Stem Blight Pathogens: Botryosphaeria and Fusicoccum spp. Irrigation Stress and Early-Navel Fruit Maturity PDF 1/22/09
2008, Vol. 6, No. 3 New Registration for the Biocontrol Plantshield HC Against Hyphoderma Gummosis of Citrus Atmometers for Irrigation Management Asian Citrus Psyllid Has Arrived in San Diego County PDF 9/16/08
2008, Vol. 6, No. 1 Evaluation of Insecticides for Citrus Thrips Control, Using Blueberries as a Crop Surrogate The Silver Mite Workgroup Just Because Spring is a Good Time to Prune Navel Orange Doesn't Mean You Should Brevipalpus Mites and Citrus Leprosis Virus Disease PDF 4/18/08
2007, Vol. 5, No. 4 Grower Cooperators Deserve Recognition for Service to Their Industries Citrus Leaf Miner Update Stubborn Disease of Citrus in California New Avocado Publication PDF 2/2/10
2007, Vol. 5, No.3 Leaf Analysis; Citrus Leaf Minor Update; Are all Phosphourous Products the Same; Analyzing the Farm Business: Most common Financial Statements and Ratios PDF 7/29/08
2007, Vol. 5, No. 2 Update on Lychee and Longan Field Trials and Plantings in Southern California Loopers in Avocados-A Note from San Diego County The 2007 Citrus Tristeza Virus Situation at the University of California Lindcove Research and Extension Center Errata: Honey Bees in California PDF 7/10/08
2007, Vol. 5, No. 1 An Introduction to the Problem of Honey Bees and Mandarins Birds to it; Bees do it, Even Citrus with Seeds do (did) it. Part 1-The Biology Behind Seedlessness in Mandarins Honey Bees in California PDF 8/24/09
2006, Vol. 4, No. 4 Boron is High in Many Southern San Joaquin Valley Citrus Trees Armillaria Root Rot Soil Test Kits Using Evapotranspiration (ETo) for Scheduling Irrigation-An Improvement on "Guessing" Subtropical Crops Program Coverage in Riverside County PDF 12/20/07
2006, Vol. 4, No. 3 The Positive Points Systems for Citrus: What is it and Why Should a Grower Get Involved? Getting Horseweed and Hairy Fleabane Back Under Control in Central California A Comparison of the New "Sequoia" Fig Cultivar A Celebration of Agricultural Research and Extension PDF 10/29/10
2006, Vol. 4, No. 2 Citrus Research Growers' Seminars 2006 Dry Root Rot in Citrus Earwigs Flying Under the Radar of Many Citrus Pest Control Advisors New Tools Available for Spider Mite Management in 2006 Product Testing PDF 2/7/11
2006, Vol. 4, No. 1 Liquid-Sugar Ant Bait Stations are Nearing Registration for Agriculture Huanglongbing, Citrus Greening: Preparing For the Future Citrus Herbicide Charts & Tables Bear Citrus Thrips Resistance in Mind When Deciding Whether & How to Treat in 2006 PDF 5/24/11
2005, Vol. 3, No. 4 UC RIVERSIDE CITRUS VARIETY COLLECTION DIAPREPES ROOT WEEVIL INFESTATIONS FOUND IN SOUTHERN CALIFORNIA A RECENT EXOTIC PEST INVASION DIAPREPES QUARANTINE DETAILS PDF 1/25/10
2005, Vol. 3, No. 3 Little Evidence to support the use of foliar applied nutrients in avocado; Web sites that can help your production; Cutoff deadline set for landowners applying for 2006 EQIP funds; Intensive training course on “How to export your food or agricultural product”; Cal/OSHA heat advisory PDF 5/24/11
2005, Vol. 3, No. 2 Citrus Leafminer Ag Waivers Supersweet Satsumas PDF 5/24/11
2005, Vol. 3, No. 1 Inside this issue: Phosphorous Acid in Avocado Production Should it be a Cultural Recommendation? Emergency Farm Loans New 24C Registration of Isopropyl Ester 2,4-D (Alco Citrus Fix) for Fruit Size Increase of Mandarins and Mandarin Hybrids in California Asphyxiation Dweet Mottle Virus and Citrus Leaf Blotch Virus PDF 9/3/09
2004, No. 4 Avocado Lace Bug The First Rule of Growing Citrus in the San Joaquin Valley: Location, Location, Location The Inland Empire Small Farm Initiative: Promoting Small Farm and Hispanic Economic Development in Riverside and San Bernardino Counties Cellulase Production by Various Sources of Mulch PDF 5/24/11
2004, No. 3 TOPICS IN THIS ISSUE: Upcoming Meetings, Deficit Irrigation, Topworking or Replanting-A Grower’s Perspective?, Weed control options for citrus PDF 12/8/09
2004, No. 2 Upcoming Meetings Mechanical Pruning and Harvesting Olives One, One Hundred, One Thousand Making Sense of Soil Moisture Checking and Sensors Think Twice Before Planting Clementine and W. Murcott Afourer Mandarins PDF 4/15/10
2004, No. 1 TOPICS INCLUDE: - Vertebrate Pests Causing Damage in Citrus - After the Fire in the Avocado Grove – Replant or Sucker Graft? - Compatibility/Seediness Among ClementineMandarins - Irrigation Scheduling - An Update of Agricultural Waivers in CA – - Water Quality Programs for Irrigated Agriculture - Integrating Admire Treatments for GWSS with - Citrus IPM in the San Joaquin Valley PDF 5/24/11
2003, No. 4 Quarterly newsletter on subtropical horticulture topics PDF 5/24/11
2003, No. 3 PDF 5/24/11
2003, No. 2 PDF 5/24/11
2003, No. 1 This newsletter covers production of citrus, avocado and other subtropical tree fruit crops. It is written by the Farm Advisors who work with subtropical crops. It will be distributed every 3 to 4 months. The UC Farm Advisors will take turns editing it. PDF 5/24/11