Asked May 04, 2021, 2:42 PM EDT
Multnomah County Oregon
https://pnwhandbooks.org/insect/tree-fruit/apple/apple-codling-moth I have attached information from the Pacific Northwest Pest Magagement Handbook. This article does include details about when to apply and what to apply. The information is for both laymen and professionals. There is also a useful app "Grow Smart Grow Safe" available for download that contains relative toxicities for all pesticides, insecticides using a color-coded ratings from least to most toxic for living things. This will help guide you through selection of useful products.