Sooty Blotch and Flyspeck in Apple

Sooty blotch and flyspeck are surface blemish diseases caused by fungi that commonly appear together on apple or pear in late summer and fall. Although these diseases may shorten the storage life of fruit due to increased water loss, they do not cause decay, and losses are attributed to unacceptable appearance. During wet growing seasons, losses of 25% or higher commonly occur, even in orchards treated with fungicides. Many fungi are involved in this complex of pathogens, including Peltaster fructicola,