Citrus Documentation at CVC Karp is an associate in the
Agricultural Experiment Station at the University of California, Riverside, working to photograph and document the more than 1,000 varieties grown at the
Citrus Variety Collection of the University of California. Displayed on the CVC website, these photos are accessible to researchers throughout the world.
Citrus germplasm in China He helped co-found the Chinese Citrus Germplasm Repository in
Jiangshui (about 50 miles from
Kunming), province of
Yunnan.
Unforbidden Fruit Karp became involved as a researcher in a joint project between the
University of California, Riverside and the
USDA to prevent smuggling of fruit into California that may harbor insects that could threaten the state's fruit industry. The project—Unforbidden Fruits: Preventing Citrus Smuggling by Introducing Varieties Culturally Significant to Ethnic Communities—focuses on making disease-free
germplasm of citrus and non-citrus fruit available to Californian nurseries and tree farmers, to replace the illicit demand. == Fruits of interest ==