Japanese Beetle (Popillia japonica) adults are starting to take flight in southern Ontario. They have been spotted in Hamilton and Niagara this week. Read on for an updated post on WHAT and WHEN to spray for JB to meet certification requirements if you ship product outside Ontario.
- The updated post from 2018 can be found here. This contains information on approved products and proper timing and a decision tree to figure out if you need to spray or not.
- Requirements for the JB module for the Greenhouse Certification Program can be found here.
- More about Japanese beetle hosts and biology can be found here and here.