Welcome to the National Clean Plant Network
The National Clean Plant Network (NCPN) was created to protect U.S. specialty crops such as grapes, fruit trees, citrus, berries, roses and sweetpotatoes from the spread of economically harmful plant pests and diseases. NCPN ensures the global competitiveness of U.S. specialty crop producers by creating high standards for our clean plant programs.
Yield Comparison of Clean vs. Virus-Infected Sweetpotato
Clark, C.A. and Hoy, M.W. 2006. Effects of common viruses on yield and quality of Beauregard sweetpotato in Louisiana. Plant Dis. 90:83-88.