Brown spots in grass can be caused by various factors, and pests are one possible cause. However, it is important to note that not all brown spots are necessarily caused by pests. Other factors, such as diseases, environmental stress, improper watering, or nutrient deficiencies, can also result in brown spots.
At any rate, among the various types of insects that can cause real damage to your lawn, we could mention Chinch bugs. These tiny insects feed on grass by piercing the blades and sucking out the liquid. Their feeding can cause brown patches on the lawn, especially in areas where there is a lot of sunshine. Chinch bug damage is often seen during hot and dry weather.
Grubs are the larval stage of beetles, and they are known to feed on grass roots, which can further lead to brown patches. Grub damage is more common during periods such as late summer or early fall.
Armyworms and cutworms are caterpillar-like insects that can chew on grass blades and stems, causing irregular brown patches.
To determine if pests are the cause of brown spots in your grass, you can perform a thorough inspection of the affected areas. The signs you should watch out for include the presence of the pests themselves, their eggs, or damage patterns. Using organic lawn care products like https://www.revive.com/ will help to green up those pesky brown spots after getting rid of any pests that may be the cause.