Honeydew excreted by pear psylla, Cacopsylla (=Psylla) pyricola, fouled the surface of these pear fruit and induced the growth of blackish sooty mold.

Russet damage on fruits El Dorado Co ; Credit: Jack Kelly Clark
Honeydew excreted by pear psylla, Cacopsylla (=Psylla) pyricola, fouled the surface of these pear fruit and induced the growth of blackish sooty mold. Credit: Jack Kelly Clark