It appears as uneven, round tan spots with red and brown haloes that are approximately 0.1 to 1cm large. Infections of Mycosphaerella are of minor consequence to a tree's health, but may be treated with organic pesticides in the case of a severe outbreak.
It presents as irregular, rounded tan patches with reddish-brown encirclements, ranging from 0.1 to 1cm in diameter. Infections by Mycosphaerella have minor effects on a tree's overall health but may necessitate the use of organic pesticides if the issue is severe.