Category: Japanese beetle
Your Yearly Explainer of Japanese Beetle Requirements: Get Those Treatments on Before May 15!
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.
Continue reading “Your Yearly Explainer of Japanese Beetle Requirements: Get Those Treatments on Before May 15!”June 19, 2024: Japanese Beetles Have Started to Emerge!
Japanese Beetle (Popillia japonica) adults were caught in traps today in Guelph and spotted in the last day or two near London, ON. Read on for what the start of the adult emergence period means in terms of pest management for outdoor nursery and floriculture crops.

Garden Mums 2024 – Tips, Tricks, and Production Bits
This post was contributed to by Abigail Wiesner, Drs. Sarah Jandricic, and Chevonne Dayboll.

As we feel temperatures rising, summer is on its way – and so are garden mums! This post has updated information to help you optimize your irrigation, fertilizer, pest management programs and more in garden mum production.
Continue reading “Garden Mums 2024 – Tips, Tricks, and Production Bits”Japanese Beetle Control 2024: Get your Japanese Beetle Treatments on BEFORE May 15!
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.
Continue reading “Japanese Beetle Control 2024: Get your Japanese Beetle Treatments on BEFORE May 15!”Japanese Beetle Control 2023: Changes to Allowable Pesticides and Updates to Infographic
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).
Continue reading “Japanese Beetle Control 2023: Changes to Allowable Pesticides and Updates to Infographic”Japanese Beetle Control: 2021 Considerations
It will soon be that time of year again, when Japanese beetle adults begin to fly!
However, the cooler spring means pupation may take longer. So what does that mean for timing of control products?
This post answers those questions and provides current infographics for JB control for those exporting to non-JB areas.
Continue reading “Japanese Beetle Control: 2021 Considerations”
Garden Mums – 2021 Production and Protection Tips

This post was contributed to by Drs. Sarah Jandricic, Andrew C. Wylie and Chevonne Dayboll.
Summer is getting underway, and so too are garden mums! Although generally an easy crop, there several tweaks you can make to help save headaches AND money.
This post has updated information to help you optimize your irrigation, fertilizer and pest management programs in garden mums.
New Resources for Mum Production
Hit your exact ship size on your ship date using Graphical Tracking
Track and even out the growth of your mums using a graphical tracking tool with a few easy steps:
Continue reading “Garden Mums – 2021 Production and Protection Tips”Garden Mums – 2020 Production and Protection Tips
This post was contributed to by Drs. Sarah Jandricic and Chevonne Dayboll.
Summer is in full swing, and so too are garden mums! Although generally an easy crop, there several tweaks you can make to help save headaches AND money.
This post has information to help you optimize your irrigation, fertilizer and pest management programs in garden mums.
Continue reading “Garden Mums – 2020 Production and Protection Tips”
Updates 2020: Japanese Beetle Control
It will soon be that time of year again, when Japanese beetle adults begin to fly. However, the cooler spring means pupation may take longer. So what does that mean for timing of control products?
This post answers those questions and provides updated infographics for JB control for those exporting to non-JB areas.

