| Figure 1. Brooks spot infection at about mid-season. Photo: Keith S. Yoder, Virginia Tech. |
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Brooks spot is a fungus disease caused by Mycosphaerella pomi. It is a minor disease that occurs throughout the northeastern and mid-Atlantic apple growing regions of the United States and occasionally as far west as Iowa. The more susceptible common commercial cultivars include ‘Jonathan’, ‘Golden Delicious’, ‘Stayman’, ‘Grimes Golden’, and ‘Rome Beauty’.
Brooks spot first appears as irregular, slightly sunken dark green lesions typically on the …