Anyone following this blog for the last few years knows I like to remind y’all to make sure you treat your plants for Japanese beetle before May 15! This is because NO pesticides are allowed when Japanese beetle (JB) pupae are present (generally, May 15-June 15 in Ontario),which has gotten some growers into a pickle during spring shipping in the past.

Note that if you’re a nursery crop grower also treating for boxtree moth, you may surpass the maximum allowed applications or rate of Acelepryn per year if you also need to treat for JB. In that case, it might be better to time your treatments for JB in order to use intercept (imidacloprid) instead. So make sure to check out the pesticide timing chart in the JB Infographic in the full post.

This year, I’ve updated the JB Decision Tree and Infographic to include shipping requirements to different areas in the United States. So, if you or your staff need more clarification on any of these points, make sure download the latest PDF.

For those of you planning on shipping ornamental products out of Ontario anytime between May 15 and June 15, this is your yearly reminder to get your curative application of Acelepryn on BEFORE May 15! Recall that no pesticides are allowed when Japanese beetle (JB) pupae are present (generally, May 15-June 15 in Ontario). So, if you haven’t already curatively treated your plants that are about to go out the door (either after Aug 15 in 2024 or before May 15 2025) they may not meet shipping requirements.

For more details, check our our updated infographic for JB control products and timing to know what to apply when. Not sure if you need to treat for JB or not? This post also contains a decision tree and a quick reference table for applicable JB programs when shipping outside Ontario.

For those of you planning on shipping ornamental products out of Ontario anytime between May 15 and June 15, this is your reminder to get your curative application of Acelepryn on BEFORE May 15! Recall that no pesticides are allowed when Japanese beetle (JB) pupae are present (generally, May 15-June 15 in Ontario). So, if you haven’t already curatively treated your plants that are about to go out the door (either after Aug 15 in 2023 or before May 15 2024) they may not meet shipping requirements.

For more details, check our our updated infographic for JB control products and timing to know what to apply when. Not sure if you need to treat for JB or not? This post also contains a decision tree and a quick reference table for applicable JB programs when shipping outside Ontario.

It will soon be that time of year again, when Japanese beetle (JB) adults begin to fly! However, there have been some changes to acceptable control products for JB growers need to be aware of in order to be in compliance with certification programs for this pest.

This post highlights changes to treatments and also provides an updated infographic for JB control for those exporting to non-JB areas (both domestically and to the United States).