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Growing Avocados

Growing News

These articles are time-sensitive cultural management pieces that address current growing conditions and seasons.

July 30, 2015

The number of detections of the Los Angeles population of the polyphagous shot hole borer (PSHB) has increased in northern Los Angeles County near the Ventura County line since the first detections were reported in early June. Learn more.

June 13, 2015

On June 11, 2015, the Commission learned from UC Researchers Drs. Akif Eskalen and Richard Stouthamer, that the Los Angeles population of the polyphagous shot hole borer (PSHB) had been detected near the Los Angeles / Ventura County border. Learn more.

May 4, 2015

In our last alert we informed you about three new beetle finds in San Diego County, one in the Escondido area and two in the Bonsall/Oceanside area. On Monday we received confirmation of another new find in the Escondido area. Unlike the previous finds, this find was not the result of CAC’s monitoring program, but rather based on a grower’s observation of symptoms on their trees. This new find is less than a mile from previously known infestations on the east side of Escondido.

Cultural Management

These articles are a collection of perennial cultural management best practices.

March 24, 2014

As growers and pest control advisors plan their arthropod pest management program for 2014, they should consider the consequences of pesticide resistance that would make pest management problematic in the future.

December 18, 2013

View three presentations concerning threats posed to California avocado groves by new pests and diseases, including laurel wilt disease, fusarium dieback disease, the polyphagous shot hole borer and the Florida redbay ambrosia beetle.

September 24, 2013

Because avocado trees are tropical rainforest trees, they are active year-round — and that means cultural management of avocado groves is necessary throughout the year. In fall, growers should prepare avocado groves for winter weather events, flush out accumulated salts, and apply pruning techniques and fertilization for optimal spring performance.