Timing of codling moth spray in Portland
I have two Asian pears (one in the backyard, one in the front yard). We have a very heavy codling moth infestation (our traps have captured ~10 moths per trap already). There is an abandoned apple tree in a neighbor's yard about 40 feet away, so I suspect that's the original source of the infestation. We decided to use a spinosad-containing spray to control the moths, but are unsure about the timing. Is there an online resource we can check to find out when to do the sprays?
Multnomah County Oregon
Great! Because you sprayed 13 days ago you are in good shape and the fact that you are not seeing entries of larvae into fruit also suggests that your treatment worked. Insecticides are remarkably rainfast, but yes when there is a break in the weather it would be a good idea to reapply.