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