Lawn Insect Control

Lawn Insect Control

Lawn Insect Control

If you see concentrated areas of damage in your lawn, you first need to recognize what is causing the damage: insects or disease. To determine exactly what could be causing it, the best thing to do is send in a sample to your local university extension office. A professional will be able to run a diagnosis and recommend suggestions to you. In the mean time, you should do what you can to learn more about what could be damaging your lawn. This blog covers the topic of insect control: curative and preventative treatment.

Curative Treatment

Once you identify what kind of insect is damaging your lawn, whether it is grub worms, billbugs, chinch bugs or even mole crickets, you will want to apply an insecticide specifically labeled to control that insect. Be sure the product you chose breaks the life cycle by killing the adult, infant or egg.

For example, to rid your lawn of billbugs, you will need one ingredient to kill the adults and another to kill the infant larvae.

If you are not sure what insect is damaging your lawn, apply a broad spectrum insecticide. If you use a granular variety, water your lawn immediately after application to help soil absorption.

Spectracide Triazicide

  • Coverage: One bottle covers 2,500 sq. ft.
  • Active Ingredient(s): Gamma Cyhlaothrin 0.08%.
  • Ease of Use: Hooks up to the end of your garden hose for even spray application.
  • Best Used On/For: Outdoor general insect control.

Merit 2F liquid

  • Coverage: Apply 14–17 mL. per 1,000 sq. ft.
  • Active Ingredient: Imidacloprid 21.4%.
  • Ease of Use: Requires tank mixing for spray application.
  • Best Used On/For: Liquid broad-spectrum systemic formulation used for outdoor insect control.

Imidacloprid .5G

  • Coverage: Apply 1.2–1.8 lbs. per 1,000 sq. ft.
  • Active Ingredient: Imidacloprid 0.5%.
  • Ease of Use: Requires a drop or broadcast spreader for application.
  • Best Used On/For: General outdoor insect control.

Preventative Treatment

If you do not see any insect damage but want to be proactive, apply a broad spectrum insecticide once a year. July or August are good months to apply. Again, if you use a granular variety, water your lawn immediately after application to help soil absorption.

Insect and Grub Control

Want more information about insect identification? Read our Insect Identification blog.

To learn more about a few specific insects, check out our 8 Things to Know About the Southern Chinch Bug post, our Fire Ants post, or our All You Never Wanted to Know About the Grub Worm post.

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Want to learn more about achieving a great lawn? Check out our other Sod University tips here

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