News from the Subtropical Tree Crop Farm Advisors in California
Volume 25, Spring 2024
Jul 11, 2024
- 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
Download (3,662KB PDF)
Volume 24, Fall 2023
Oct 11, 2023
- 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
Download (1,218KB PDF)
Volume 23, Spring 2023
May 16, 2023
- 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
Download (1,304KB PDF)
Volume 23, Winter 2023
Feb 22, 2023
- 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
Download (10,428KB PDF)
Volume 22, Fall 2022
Sep 28, 2022
- 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
Download (574KB PDF)
Volume 22, Summer 2022
Jul 22, 2022
- 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
Download (1,971KB PDF)
Volume 22, Spring 2022
Jun 10, 2022
- 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
Download (2,829KB PDF)
Volume 20, Summer 2021
Sep 23, 2021
- 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
Download (1,054KB PDF)
Volume 19, Spring 2021
May 6, 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?
Download (1,899KB PDF)
Volume 19, Winter 2021
Mar 3, 2021
- Avocado Establishment Costs
- Soil Analysis
- Healthy Roots, Healthy Trees
- Avocado Weed Control
- Salt Leaching
Download (2,116KB PDF)
Volume 18, Fall 2020
Nov 17, 2020
- 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
Download (1,241KB PDF)
Volume 22, Summer 2020
Aug 17, 2020
- 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
Download (2,325KB PDF)
Volume 19, Spring 2020
Jun 25, 2020
- 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
Download (1,344KB PDF)
Volume 21, Fall 2019
Dec 4, 2019
- Leveraging the Genomic Landscape of Avocado for Breeding Purposes
- Fresh Market Raspberry in California
- Weed Management in Citrus Orchards
Download (588KB PDF)
Volume 20, Summer 2019
Aug 20, 2019
- 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
Download (1,849KB PDF)
Volume 19, Spring 2019
May 16, 2019
- 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?
Download (2,296KB PDF)
Volume 18, Winter 2019
Mar 28, 2019
- 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
Download (1,384KB PDF)
Volume 17, Fall 2018
Nov 8, 2018
- 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
Download (1,190KB PDF)
Volume 17, Summer 2018
Sep 20, 2018
- 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
Download (934KB PDF)
Volume 17, Spring 2018
May 8, 2018
- 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
Download (1,873KB PDF)
Volume 16, Winter 2017-2018
Feb 27, 2018
- 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
Download (1,477KB PDF)
Volume 15 - Fall 2017
Oct 11, 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
Download (769KB PDF)
Volume 14 No. 5 June 2017
Jun 30, 2017
- Why has California red scale been so difficult to control?
- Navel Orange Nitrogen Fertilization
- Recent advances in understanding the history of olive domestication
Download (973KB PDF)
January-March 2017
Mar 3, 2017
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
Download (1,314KB PDF)
November 2016
Dec 7, 2016
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
Download (1,756KB PDF)
Centennial Celebration
Jul 14, 2014
Centennial Celebration - Thursday, August 21, 2014 - Kern Ag Pavilion
Download (576KB PDF)
Kern Spring Citrus Meeting Announcement
Apr 10, 2013
Kern Spring Citrus Meeting
Thursday, May, 2, 2013, 1:00 p.m. to 4:45 p.m.
UCCE Kern Conference Room
Download (412KB PDF)
UC Riverside Citrus Day For Industry Announcement
Jan 10, 2013
UC Riverside Citrus Day For Industry
Thursday, January 31, 2013 - 9 a.m. to 3:30 p.m.
UCR Agricultural Operations, Riverside, California
Download (377KB PDF)
Volume 9 No. 2 - Winter 2011
Jan 10, 2012
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
Download (1,069KB PDF)
June 2011
Aug 11, 2011
-Organic Herbicides: Do They Work?
-Snake Oil: Horticultural Myths and Legends
-Success Story before there is a problem
Download (687KB PDF)
April - June 2009
Jul 22, 2009
- Ag Waivers for San Diego County - Spring Adjustments: What's in a Name? - Strategizing for Water Cutbacks . . . Is there a Logical Method?Download (PDF)
Spring 2009
Apr 7, 2009
-Avocado Research in Ventura County -Laurel Wilt Disease Conference -Managing Insecticide Resistance -Smart Sprayers Make SenseDownload (PDF)