Subtropical Fruit Crops Research & Education
University of California
Subtropical Fruit Crops Research & Education

Posts Tagged: Central Valley

Central Valley Avocado Meeting


 Interested in San Joaquin Valley Avocados?

 When:  NOVEMBER 28, Tuesday, 1PM


UC Lindcove Research and Extension Center Conference Room (22963 Carson Ave, Exeter, CA 93221), Central Valley.


Tentative Program:

Welcome and Introductions – Mary Lu Arpaia, UC Riverside

Challenges to growing avocados in the Valley

Irrigation, Fertilization and Soil Requirements – Ben Faber, UCCE, Ventura County

Avocado Root Rot and how to manage – Greg Douhan, UCCE, Tulare County

What is the California Avocado Commission and the Hass Avocado Board? – Tim Spann, California Avocado Commission, Irvine, CA

Results from the Tier 3 varietal evaluation block at UC Lindcove REC – Mary Lu Arpaia and Eric Focht, UC Riverside

Ideas for the Valley Avocado Industry – Group Discussion


Walkthrough of the Tier 3 varietal evaluation block



RSVP to Diana Nix (

For more information contact Mary Lu Arpaia (


avocado cluster
avocado cluster

Posted on Wednesday, November 15, 2017 at 6:08 AM
Tags: avocado (289), Central Valley (2), cold tolerant (1), freeze (10), frost (19), subtropical (2)

Asian Citrus Psyllid Popping up in the San Joaquin Valley


It shouldn’t be news to local citrus growers and industry people that the Asian citrus psyllid (ACP) is being found with increasing frequency in the southern San Joaquin Valley. If this is news to you please follow the website at and/or sign up for U.C. entomologist Dr. Beth Grafton-Cardwell’s blog at;


Go to Beth’s website and in the upper right corner you can subscribe and receive the blog each time she sends one out. She also has a twitter account ‘ucanrbethgc’ that you can follow. This blog covers more than just ACP and is a great source of information on citrus IPM and citrus entomology. At the CDFA website, or through links to the site at Dr. Grafton-Cardwell’s blog, you can find maps delineating quarantine areas around new ACP finds, such as the one surrounding the recent find in the Wasco area (see attached map as an example). Regulations related to what needs to be done related to harvesting fruit and selling nursery trees growing within the quarantine zone can be found at:

So far, there is no sign of HLB disease in the San Joaquin Valley, but that can change on short notice. Where ACP shows up, HLB disease (spread by a bacterium) is usually only a few years behind.

ACP adult and nymph
ACP adult and nymph

Posted on Thursday, October 3, 2013 at 5:03 PM
  • Author: Craig Kallsen
Tags: ACP (86), Asian Citrus Psyllid (57), California (13), Central Valley (2), citrus (338), San Joaquin (1)
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