SD24: Psylla and natural enemy scouting and thresholds for integrated pest management in pears

Pear psylla is the most economically challenging pest of commercial pears in Washington and Oregon. Using economic injury levels, we determined economic thresholds for pear psylla which include predicted pest population growth, natural enemy predation, and anticipated delays between when pest populations are measured and when managers apply interventions. A newly piloted scouting network allows managers to use economic thresholds to make management decisions. Participants receive weekly pest and natural enemy population data from scouts through a recently designed Ap.