Kent Mickelsen explains that grub works are larvae hatched from eggs laid by billbugs that are most common in Utah and occasionally June Beetles. They eat and destroy the root system of the lawn, causing brown spots.
The best way to control lawn grubs is to prevent them by applying a systemic grub killing insecticide during the month of May (in most locations in Utah and surrounding states). Bonide Insect & Grub Control or Bio-advanced Complete Insect Killer For Lawns are both excellent choices for grub prevention because they are systemic and can provide season-long grub control.
The applied systemic insecticide is waiting in the grassroots when the new grub worms hatch and emerge from their eggs. Their first bite will kill the grubs immediately so they don’t become a lawn destroying menace. To further establish a lush lawn with strong roots, apply our 4-Step Plus lawn fertilizer.
IFA Step 2 may be applied until regular daytime temperatures consistently reach 85 degrees. If it becomes too warm or as we head into June, it’s time to switch to IFA Step 3. It’s formulated with slow-release nitrogen and additional nutrients helpful for the summer.
Visit your local IFA Country Store and talk to one of our lawn and garden experts to help you grow the things you love.
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