Effects of Fungicides Applied During Bloom on Yield, Yield Components, and Storage Rots of Cranberry

Captafol, chlorothalonil, and mancozeb were applied to the same plots, which were established in commercial cranberry (cv. Searles) beds at two locations in central Wisconsin, for three consecutive years to manage postharvest storage rots of fresh fruit. Applications were initiated progressively earlier each year in relation to bloom (late bloom in 1986, 70% bloom in 1987, and 14% bloom in 1988) and were made three times at 14-day intervals each year. Compared with the untreated control, one or more of the fungicide treatments reduced yield (i.e., marketable berry weight per unit area) in all 3 yr at both locations (.)