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Grub Treatment in Denver #924256

Asked February 05, 2026, 12:32 PM EST

I hate using pesticides but I also hate grubs destroying my lawn. How often should I get the grub treatment? I live in Denver County.

Denver County Colorado

Expert Response

Susan, 
Here's a link to a fact sheet from CSU Extension that both details lawn management practices that can reduce reliance on pesticides to control grubs in the lawn, and has a table that sets out the proper timing(s) to follow if you opt to use pesticides:

Billbug and White Grub Management in Lawns | Colorado State University Extension Website

 
Colorado Master Gardener, Denver County Replied February 10, 2026, 12:59 PM EST

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