1. UC IPM
A half-moon-shaped hole chewed by a larva of California pear sawfly, <i>Pristiphora abbreviata.</i> The larva is shown, but is easily overlooked because it often feeds with its body aligned along the hole edge.
A half-moon-shaped hole chewed by a larva of California pear sawfly, Pristiphora abbreviata. The larva is shown, but is easily overlooked because it often feeds with its body aligned along the hole edge.
Credit: Jack Kelly Clark