Thanks so much for answering this question. I’ll take that advice. Thank you!!
Today I did my second spray. Just sulfur. I’m hoping to have a pear psylla free year next year. It’s windier than I like for spray days but had to take the chance since it’s hard to find no rain, no snow above freezing, no work, kid taking a nap kind of day.
No…regular sulfur dust
I found this blog from Cornell. Looks like oil is a good treatment for pear psylla in early spring. I will try it this spring. It will help with pear blister mites, too, which is my more obvious issue.