Abstract
Ring spot, caused by the fungus Leptosphariea sacchari, is a disease of sugarcane that has been known to occur in Florida for over 80 years. Ring spot usually affects only the older leaves, and therefore is considered a minor disease. However, correctly identifying the disease in the field can help to reduce unnecessary chemical sprays. This 2-page fact sheet outlines the symptoms and spread of the disease, as well as how to prevent and control Sugarcane Ring Spot. Written by P. Rott, J.C. Comstock, H.S. Sandhu, and R.N. Raid, and published by the Plant Pathology Department, September 2015.
References
Bourne, B. A. 1934. Studies on the Ring Spot Disease of Sugarcane. Bulletin 267. Gainesville: University of Florida Institute of Food and Agricultural Sciences. http://ufdc.ufl.edu/UF00027204/00001/
Croft, B. J. 2000. "Ring spot". In A Guide to Sugarcane Diseases, edited by Philippe Rott, Roger A. Bailey, Jack C. Comstock, Barry J. Croft, and A. Salem Saumtally, 167-69. Montpellier, France: CIRAD/ISSCT, La Librairie du Cirad.
Raid, R. N., D. L. Anderson, and M. F. Ulloa. 1991. "Influence of cultivar and amendment of soil with calcium silicate slag on foliar disease development and yield of sugarcane." Crop Protection 11:84-88. https://doi.org/10.1016/0261-2194(92)90085-J
Rott, P., J. C. Comstock, R. A. Gilbert, and H. S. Sandhu. 2014. Sugarcane Eyespot Disease. SSAGR203. Gainesville: University of Florida Institute of Food and Agricultural Sciences. http://edis.ifas.ufl.edu/sc003
Sandhu, H. S., B. Glaz, S. J. Edmé, R. W. Davidson, D. Zhao, J. C. Comstock, R. A. Gilbert, S. B. Milligan, C.-J. Hu, N. C. Glynn, S. Sood, and K. McCorkle. 2014. "Registration of 'CPCL 02-6848' sugarcane." Journal of Plant Registrations 8:155-161. https://doi.org/10.3198/jpr2013.02.0009crc
Whittle, P. J. L. 2000. "Brown stripe". In A Guide to Sugarcane Diseases, edited by Philippe Rott, Roger A. Bailey, Jack C. Comstock, Barry J. Croft, and A. Salem Saumtally, 81-84. Montpellier, France: CIRAD/ISSCT, La Librairie du Cirad.