Calamansi Production - Information on all aspects of growing this fruit in the Philippines, and some ideas for products that can be made from it.
Citrus Horticulture Program at SWFREC - We serve the extension and applied research needs for 179,093 acres of commercial plantings in the Southwest Florida Gulf Coast region.
Citrus Pages - Description of over 330 types of citrus. Includes all commonly known citrus varieties as well as kumquats, native Australian citrus, trifoliate oranges and distant citrus relatives. Comprehensively illustrated.
Citrus Research and Education Center - University of Florida research, teaching and extension center devoted to citrus, addressing issues in horticulture, pests and diseases, and processing technology. Information about departments and facilities, list of publications.
Citrus Research International - Description of the research projects, the facilities and services offered and contact details.
Citsumaquat - Research and breeding of cold hardy (Citrus x Poncirus) hybrids for USDA climate zone 7.
Crop Profile for Citrus in California - A summary of the integrated pest management tools that are available to control economically important pests in the citrus industry in this state. [PDF]
Dwarfing Citrus Trees using Viroids - Information on research in Australia into using graft-transmissible dwarfing budlines to control tree size in high density citrus plantings. [PDF]
Growing Citrus Fruits - Information on all aspects of cultivating these fruits in the Philippines including varieties specially adapted to the country. [PDF]
National Research Centre for Citrus - Information on a project to study the germplasm of rootstocks, mandarins, acid lime, pummelo, grapefruit and sweet oranges.
NSW Department of Primary Industries: Citrus - Collection of articles by Australian governmental agency on cultivating citrus, pests and diseases, soil management, and managing fruit quality.
Texas Citrus - Information and resources for citrus growers.
Types of Citrus Fruit - Information on about a dozen sorts of citrus fruits. Provides nutritional values, use, storage, history, and particular characteristics.
The Ultimate Citrus Page - Information and links regarding anything citrus related, from agriculture to weather.
Vines in Florida Citrus - Article with photographs on the vine weeds that can be found in Florida citrus groves and how to control them.