Subtropical Tree Crops

Many subtropical crops are grown successfully in Fresno and Madera Counties, including citrus (over 30,000 acres) and olive (about 3,000 acres). The types of citrus grown include orange (navel, valencia, and blood), mandarin/tangerine, lemon, grapefruit/pummelo, and tangelo. The UCCE program in Fresno provides researched based information and problem solving, and extends knowledge to clientele involved with production of those crops.

There is much information available for new and experienced growers, and personnel with the allied industries who work with growers. The commodity cost and return studies provide economic figures on the average costs of starting and maintaining tree crops, along with possible economic returns which are variable. Please refer to the link labeled "Cost Studies ". There are a number of UCCE statewide publications on the crops, including production manuals and integrated pest management manuals. There are various publications on specific items and discipline areas, such as soils, irrigation, climate, fertilizer, etc. Please refer to the link labeled "Publications". There are also a number of internet sites with useful information, and can be accessed by referring to the link labeled "Links ".

The UCCE Farm Advisor assists clientele with problem solving through phone calls and farm visits. Problem solving is an important part of the total program, as it helps to identify new research needs and thus link the field to the campus researchers. It provides a mechanism for researchers to bring new technology and tools to address the problems. It also provides training to UCCE Advisors and personnel within the allied industries, so that information can be extended to more growers in the future. Please refer to Contact Information below to contact the Farm Advisor.

The UCCE program extends knowledge through many methods. The goal is assisting clientele to recognize the problems and/or opportunities, and then assisting clientele with the adoption of new or different technology. Methods include a county newsletter, Subtropical Tips , which is currently mailed through USPS, and a statewide newsletterTopics in Subtropics . County or regional meetings are also held, along with participation in the statewide Citrus Research Growers' Educational Seminars.

Mark W. Freeman, Subtropical Tree Crops Farm Advisor

Contact Information
UC Cooperative Extension
1720 South Maple Avenue
Fresno, CA 93702
Main Phone: 559-456-7285
Direct Line: 559-456-7265
FAX: 559-456-7575
Email: mwfreeman@ucdavis.edu
Website: http://cefresno.ucdavis.edu