Japanese Beetle Grub killer #851208

Asked September 25, 2023, 4:22 PM EDT


We stopped by your booth at Broomfield Days and spoke to a very nice lady that recommended a more natural Japanese Beetle grub killer.  I thought she called something with the name grub in the title "Grub something."  Would anyone be able to tell me what that was?  We don't want to use something that will harm bees, hummingbirds, etc.

Thank you so much!

Broomfield County Colorado

Expert Response

Hello Vickie,

Thanks for stopping by our booth at Broomfield Days and for reaching out! Although I did not speak to you myself, my assumption based on the information you provided is that they were referring to a product that uses a strain of the bacterium Bacillus thuringiensis. One of the product names is "grubGONE!"

Bacillus thuringiensis are used as a biocontrol and are not harmful to pollinators.

This product and other treatments for adults and larvae are discussed in this CSU Extension Japanese Beetle fact sheet.

I hope this is helpful! If I am off base on the product you discussed, perhaps it is another in that document that you'll recognize.

Sarah Schweig Replied September 26, 2023, 2:42 PM EDT
Thank you so much for the information! You have been super helpful!

On Tue, Sep 26, 2023, 12:42 PM Ask Extension <<personal data hidden>> wrote:
The Question Asker Replied November 02, 2023, 1:23 PM EDT

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