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USDA-ARS National Clonal Germplasm Repository for Citrus & Dates Stubborn disease of citrus was first observed about 1915 in Washington navel trees nearRedlands. The first report of stubborn from outside ofCaliforniawas fromPalestinein 1928.

High priced district water in San Diego County is really making it tough on citrus growers. Many of the citrus growers in San Diego County are finding it increasingly difficult to make a profit, but they usually stick it out for several years before they turn the water off.

Saline Waters - A Growing Problem Ben Faber Irrigated agriculture must always contend with salts, but two years without rain and a dry winter forecast, salt is an even more important issue. We rely on winter rainfall to leach the salts from root zones that have accumulated from previous irrigations.

The Avocado: Botany, Production and Uses, 2nd Edition By Bruce Shaffer, Nigel Wolstenholme and Anthony Whiley This brand new book summarizes avocado science and technology and reviews production practices on a worldwide scale.

Costs of Orchard Establishment and Production Summary for Avocados in California: Based on 2011 studies: www.coststudies.ucdavis.edu Etaferahu Takele, UCCE Area Advisor, Ag.