Exporting to a JB-free Zone? Proper Pesticide Timing for Japanese Beetle Control in Ontario.

japanese beetle_daveNavigating the guidelines for exporting plant material out of a Japanese Beetle (JB) zone such as Ontario can be tricky business, especially with upcoming changes to the Greenhouse-Grown Plant Certification Program (GCP; formerly CGCP).

Also not helping is the general lack of information out there regarding proper timing of JB control products. For example, did you know that NO products are considered effective between May 15 and June 15?  This could create problems if you’re  shipping outside Ontario in the next month and haven’t treated yet.

To make things easier, I’ve created a treatment “decision tree” and a JB product “cheat sheet” for growers of greenhouse ornamentals.

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