New hosts of citrus stubborn disease. Oldfield G.N., Kaloostian G.H., Pierce H.D., Sullivan D.A., Calavan E.C. and Blue R.L., Citrograph, 1977, Volume 62, Number 10, pages 309-312 (abstract[permanent dead link])
doi.org
Polymerase Chain Reaction-Based Detection of Spiroplasma citri Associated with Citrus Stubborn Disease. Raymond K. Yokomi, Alexandre F. S. Mello, Maria Saponari and Jacqueline Fletcher, Plant Disease, February 2008, Volume 92, Number 2, pages 253-260, doi:10.1094/PDIS-92-2-0253
Leafhoppers transmit citrus stubborn disease to weed host. George H. Kaloostian, George N. Oldfield, Edmond C. Calavan and Richard L. Blue, California Agriculture, September 1976, Volume 30, Number 9, pages 4-5, doi:10.3733/ca.v030n09p4
Occurrence of Spiroplasma citri in periwinkle in California. A.L. Granett, R.L. Blue, M.K. Harjung, E.C. Calavan, D.J. Gumpf, California Agriculture, volume 30, issue 3, pages 18-19, doi:10.3733/ca.v030n03p18
Spiroplasmas are the causal agents of citrus little-leaf disease. P. G. Markham, R. Townsend, M. Bar-Joseph, M. J. Daniels, A. Plaskitt and B. M. Meddins, Annals of Applied Biology, September 1974, Volume 78, Issue 1, pages 49–57, doi:10.1111/j.1744-7348.1974.tb01484.x
Weller, Stephen C.; Ashton, Floyd M.; Ashton, Floyd M. (2002). Weed Science : Principles and Practices (4 ed.). New York: John Wiley & Sons. pp. xi+671. ISBN0-471-27496-8. OCLC51169076.
