If you've noticed patches of grass that seem to be dying for no obvious reason, it may not be drought, disease, or a fertilizer issue.

A newly detected invasive insect called the pasture mealybug has recently been confirmed in Florida, and it's already raising concerns for ranchers, property owners, and anyone managing large grass areas. While the worst damage so far has been seen in pasture grasses, researchers have also found it feeding on bahiagrass, bermudagrass, and other common grasses throughout the state.

What Is a Pasture Mealybug?

Pasture mealybugs are tiny sap-feeding insects covered in a white, waxy coating. Unlike many lawn pests that stay on the leaves, these insects often hide deep in the thatch, around the crown of the plant, or even at the soil surface. That's one reason they're easy to miss until damage becomes noticeable.

As they feed, they weaken the grass by removing plant sap. Over time, affected areas may begin to show yellowing or reddish-purple grass, slow or stunted growth, thin and declining turf, and brown patches that continue to spread.

Many people mistake these symptoms for drought stress, nutrient deficiencies, or root problems, so it's important to take a closer look before assuming what's causing the damage.

Early Detection Makes a Difference

One thing we've learned over the years is that insect problems are always easier to manage when they're caught early.

If you have areas of your property that suddenly aren't responding to water or fertilizer, don't just keep throwing products at the problem. Inspect the grass closely, especially around the base of the plant and in the thatch. That's where these insects tend to hide.

The sooner an infestation is identified, the better your chances of limiting damage and protecting the surrounding turf.

The Good News: Treatment Is Available

When this pest was first detected, there were very few management options available. Fortunately, that has already begun to change.

An insecticide has now received approval for suppression of pasture mealybug in Florida, giving property owners and land managers an effective treatment option when infestations are identified. Like most insect problems, timing matters. Treating early typically provides better results than waiting until large sections of grass have already declined.

If You Think You Have Pasture Mealybugs

Not every brown patch is caused by pasture mealybugs, and not every insect you find in your lawn needs treatment.

A proper inspection can determine whether this new invasive pest is the culprit or if something else is stressing your grass. If pasture mealybugs are present, we offer targeted treatment specifically for this pest, along with recommendations to help prevent further spread across your property.

As with any new invasive species, staying ahead of the problem is far easier than trying to recover after significant damage has already occurred.