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Grass-eating bugs and other insects usually go looking for water and food. Insects thrive with access to food, in this case, your grass. Tall grasses provide shelter and protection from the sun. Some insects dig into the ground and live there, while others stay on the surface. Bugs like moths and beetles lay their eggs on soils with plenty of thatch, and their larvae feed on the grass.

To detect a grub problem, identify lawn damage such as brown patches. Grass also lifts up easily, and if you look closer, you will see the roots are gone. It is possible to see grubs themselves if you dig the soil with a shovel. Increased animal activity, such as birds, ravens, moles, and skunks, is also a signal of grub presence.

Not all lawn insects are bad. Pollinators, for example, are actually beneficial. Some insects are natural predators of bugs and their larvae, such as praying mantises and ladybugs. And although they are not insects, spiders are also helpful in controlling bug populations in yards.

Yes. Lawn insect treatment eliminates the current population, but insects like grubs, mole crickets, and armyworms can return when conditions are favorable. A single treatment is rarely enough. Preventive applications at the right time of year, combined with proper watering, mowing, and aeration, make your lawn far less inviting to pests. A recurring treatment schedule with a lawn care professional is the most reliable way to keep your grass protected long-term.

If you notice brown patches spreading quickly, grass that pulls up with no roots, or tunnels and holes in the soil, it is time to call a lawn care professional. DIY treatments can work for minor pest problems, but heavy infestations require targeted products and precise application methods that pest control experts are trained to handle.

A professional can also distinguish insect damage from lawn diseases or drought stress, which often look similar but require completely different treatments. Acting fast prevents small pest problems from turning into large-scale lawn damage that costs significantly more to repair. When in doubt, scheduling an inspection is always the safest move to keep your lawn in good shape.