Preventive control of anthracnose basal rot on an annual bluegrass putting green, 2006

摘要

Fungicides were evaluated for their ability to preventively control anthracnose on an annual bluegrass putting green. This field study was conducted Burning Tree Country Club located in Greenwich, CT. The putting green turf consisted primarily of annual bluegrass (Poa annua). The study site had a history of anthracnose and the disease was allowed tonaturally develop. Treatments were applied at various timings and intervals and are listed in the data tables. In general, most treatments were applied beginning on 11 May and reapplied on either 14- or 28-day intervals. There were no visible anthracnosesymptoms at the time of application and no other chemical controls were applied to the area for the duration of study. All treatments were applied with a CO_2-pressurized (35 psi) sprayer equipped with a flat-fan nozzle (8010E), and calibrated to deliver 2.5 gal water per 1000 ft2. Plots measured 5 ft x 5 ft, and were arranged as a completely randomizeddesign with three replications. Percent anthracnose was rated visually on a 0 to 100 percent scale where 0 = no visible anthracnose symptoms and 100 = entire plot area discolored by C. cereale.