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Topics in Subtropics Blog
Added April 28, 2017
This is a reminder of the complexity of huanglongbing and the bacterial infection it causes. This abstract is from the HLB Conference in Florida last fall. 4.a.5 Symptom variations and molecular markers that illustrate the HLB...
Added April 25, 2017
Dr. Gary Bender, UC Cooperative Extension (UCCE) Farm Advisor Emeritus, is the lead instructor for a six-week course entitled “Avocado Production for New Growers.” Co-instructor, Sonia Rios, current subtropical Farm Advisor,...
Added April 24, 2017
Editor: Guy B Kyser The giant invasive grass arundo (Arundo donax), one of the weeds targeted under the USDA-ARS-funded Delta Region Areawide Aquatic Weed Project (DRAAWP), has been re-acquainted with one of its natural enemies imported from arundo's...
Added April 19, 2017
At the recent HLB Conference in Florida a paper was given that reinforces the need for appropriate soil and water pH to maximize root density and tree health. The industry there is dominated by a range of rootstocks and by Valencia-like...
Added April 19, 2017
Recently, an outbreak of shoot and twig dieback disease of citrus has been occurring in the main citrus growing regions of the Central Valley of California (Fig 1). The causal agents of this disease were identified as species of Colletotrichum, which are...
Added April 17, 2017
Psyllids as a pest group have very few specific predators that can be used in biocontrol. Instead there can be some control by generalist predators, like minute pirate bugs, spiders, lady bug beetles and predatory thrips. Predation, though, does...
Avocado Production in California Books
Book 1: Background Information
In Book 1, Gary S. Bender, Farm Advisor, takes you through the history of the avocado industry in California and teaches you about grove development.
Book 2: Cultural Care
Book 2 focuses on cultural care and includes articles on irrigation, fertilization, disease and insect control, vertebrate pest management, pruning and frost management. The author for most of the articles is Gary S. Bender, Farm Advisor for Subtropical Horticulture in San Diego County.