Ongoing research

Prepared for the information of growers by the Production Research Advisory Committee of the California Avocado Advisory Board in cooperation with the Cooperative Extension Service and Experiment Station of the University of California at Riverside The causative organism of avocado root rot - the fu...

It's spring time and the avocados are in bloom. If the trees are stressed from disease, persea mite or drought, the trees will often drop many of their leaves at this time, as well. The trees can look awfully bad.

Avocado root rot, caused by the soil fungus, Phytophthora cinnamomi, occurs in all of the avocado-producing counties in California.

Since THERE IS NO QUESTION that avocado root rot is the most serious disease of avocados, and since THERE IS NO QUESTION that at least 6 ,000 to 7,000 acres of avocados in California are known to be infected, are suspected of infection, or have been removed over the past several years because of inf...

Calculate Cost of Fire Damage to Citrus & Avocado Trees Notes on Avocado Tree Depreciation...

Farmers can calculate cost of damage to trees As it is a frequent occurrence in Ventura County, it is helpful for growers to know the value, for insurance purposes, of trees that are lost due to fire.

This information has been adapted from an article by George E. Goodall, Farm Advisor, Santa Barbara County, appearing in the 1971 California Avocado Society Yearbook. It has been updated to include current costs and information sources.

Avocado Leaf Analysis Guide Chemigation Injection Devices Nitrogen Application with Micro-irrigation...

Through research and experience gained thus far in leaf analysis, the ranges of elements in avocado leaves have been tentatively established. These are useful as a guide to fertilization and orchard management but should not be taken as absolute values for all varieties under all conditions.

Chemicals are often injected through irrigation systems, hence the name chemigation. When applied to fertilizers, it is called fertigation.