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Lawn Insects

Organic Insect Control Tips

To effectively manage insects naturally, it's important to focus on creating an environment that encourages healthy turfgrass growth. This will make your lawn capable of tolerating minor insect feeding.

READ > Management Techniques for Controlling Insects

When extra help is required to control damaging lawn insects, we use naturally occurring predatory insects called beneficial nematodes as a preventative application to help reduce pest populations. At Nutri-Lawn, our Organic Insect Control implements all the features of Integrated Pest Management with the exception that no synthetic pesticides are used. Our in-depth knowledge of insect lifecycles allow us to dramatically reduce pest populations in home lawns.

Beneficial nematodes are microscopic round worms that attack insect larvae in the soil. The nematodes are naturally occurring in our soils and are harmless to mammals like humans, dogs, cats and birds, but to lawn insects, they are deadly.

We apply nematodes via water to the surface of lawns, and then ask the homeowner to water them into the soil, or time the application with a period of rain. Beneficial nematodes are best used in a preventative manner, and should be applied soon after the larvae (grubs) have hatched, in their 1st or 2nd instar. This means that insect damage will not be evident when the nematodes are first applied. Research has shown that using nematodes to control fully grown grubs that have entered their 3rd instar is poor and not recommended.

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Grubs killed by nematodes

Here are a few points to remember when having nematodes applied to your lawn:

  • They are sensitive to sunlight (UV), so the application is best done early in the morning or late in the day. Alternatively, they can be applied on an overcast day.
  • Nematodes need water to survive, so water your lawn heavily the day before and after an application of nematodes. This will accomplish two things; it will drive the grubs closer to the surface on the soil, and it will create a moist environment where the nematodes can live and move.
  • Water the lawn immediately after an application to wash the nematodes down into the soil where they can attack the grubs. Keep the lawn moist for at least two weeks after an application to facilitate nematode infect of the grub.
  • Aerate the lawn before an application of nematodes to open up the soil and make it easier for the nematodes to get down into the soil where the grubs are. We recommend an annual core aeration for all our customers because of the many benefits it offers.

Free Guide

Lawn Care Identification Guide

Learn the ins and outs of your lawn. From wicked weeds to pesky insects, there are a number of obstacles you might encounter on your way to a luscious lawn.


Grub Control at Nutri-Lawn

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