Evaluation location: Colorado, United States
Beet leafspot (Cercospora beticola) done by Earl Ruppel and Lee Panella, Fort Collins on land near Windsor, Colorado, 1997. Nursery was planted on May 1st, inoculated on June 27th and July 8th. Visual evaluations on a scale from 0(no disease) to 10(plant dead) were made on Sep. 2nd, 9th, & 16th. The peak of the epidemic occurring on the last date and is the only data being enterred into GRIN. The 1997 leaf spot epidemic progressed rather slowly at first but rapidly became quite revere by lat August to early September due to high humidity and temperature. Susceptible check FC504/FC502 scored 8.0 and resistant check SP6322-0 scored 4.3 on sept. 16th.