| Oil smothers mite eggs and scales but reduces pear psylla by repelling females from laying eggs. |
| Dormant oils kill some psylla outright, but more importantly, oils keep female psylla from laying eggs early. |
| If monitoring indicates scale or pear psylla is a bigger issue in the orchard, oils need to be applied earlier, during the dormant period. |
| The lid, sides, and floor of each container were examined for pear psylla, predatory insects, and spiders. |
| If psylla control is less than ideal this year, don't immediately blame resistance though. |
| There is little to no dilution of resistant populations by immigration of insecticide-susceptible psylla. |
