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Chinch bugs are now becoming immune to treatments in Tampa

  • 3 days ago
  • 4 min read

Something concerning is happening to St. Augustine lawns throughout the Tampa Bay area.

Southern chinch bugs have always been one of the biggest insect threats to St. Augustine grass in Florida. Today, lawn treatment professionals are facing an additional challenge.

Chinch Bugs Are Becoming Harder to Control in South Tampa Something concerning is happening to St. Augustine lawns throughout the Tampa Bay area.

Southern chinch bugs have always been one of the biggest insect threats to St. Augustine grass in Florida. Today, lawn treatment professionals are facing an additional challenge.


Some chinch bug populations are showing significant resistance to synthetic insecticides that have traditionally been used to control them.


At Ecoscape Outdoor Services, we are seeing the effects firsthand on properties throughout South Tampa and Hillsborough County.


We are not a pesticide application company. We maintain landscapes. That distinction is important.


Our crews are on our clients’ properties regularly. We mow, edge, trim, weed, maintain landscape beds, and watch the overall condition of the property. This gives us an opportunity to notice changes in a lawn quickly and communicate those concerns before a small problem becomes a much larger one.

Something concerning is happening to St. Augustine lawns throughout the Tampa Bay area.

Southern chinch bugs have always been one of the biggest insect threats to St. Augustine grass in Florida. Today, lawn treatment professionals are facing an additional challenge.

What Is Happening With Chinch Bugs?

Southern chinch bugs feed on St. Augustine grass and can cause extensive turf damage.

Damage often begins as yellowing or browning areas that continue expanding despite adequate irrigation. Chinch bugs frequently become active along the edges between healthy green turf and declining turf.


For years, professional lawn treatment companies have relied heavily on synthetic insecticides to manage these insects.


The problem is resistance.


University of Florida researchers have documented southern chinch bug resistance to multiple classes of insecticides. Florida lawn professionals are also reporting situations where products that previously provided reliable control are no longer producing the same results.


This does not mean every brown area in a lawn is caused by resistant chinch bugs.

Irrigation problems, drought stress, disease, improper mowing, nutrient deficiencies, and other conditions can produce similar symptoms.


It does mean chinch bug management is becoming more complicated.


We Are Seeing It Here in Hillsborough County

This is not something happening somewhere else in Florida. We are seeing the effects locally.


Some of the professional treatment companies we work with are encountering chinch bug populations that are extremely difficult to control with traditional synthetic products.


In certain neighborhoods, repeated conventional treatments are producing disappointing results.


The professionals treating these lawns are having to adapt. One biological control receiving increased attention is Beauveria bassiana.


What Is Beauveria bassiana?

Beauveria bassiana is a naturally occurring entomopathogenic fungus used as a biological insect control.


Rather than relying on the same conventional synthetic chemistry, the fungus infects susceptible insects after its spores contact them.


For some of the difficult chinch bug populations being encountered locally, Beauveria bassiana is providing another option for professional treatment companies when traditional approaches are struggling.


This is an important development.


It also demonstrates why homeowners need qualified professionals who understand what is happening rather than repeatedly treating a declining lawn with the same approach.


Ecoscape Is Taking a Different Approach

Ecoscape Outdoor Services does not provide pesticide or chemical lawn treatment services.

Instead, we are strengthening our relationships with some of the best professional lawn treatment companies serving our area.


We want the companies maintaining the physical condition of the landscape and the professionals responsible for pest and turf treatments working together.


When one of our clients uses one of our partner treatment companies, communication becomes much easier.


Our crews are regularly on the property.


If we notice unusual browning, thinning turf or another significant change, we document what we see and communicate the concern.


Our treatment partners then bring their expertise to the property, determine what is happening, and develop the appropriate treatment strategy.


After treatment, Ecoscape continues watching the lawn during our regular maintenance visits.


This creates another set of trained eyes on the property.


Lawn Maintenance and Lawn Treatment Need to Work Together

One company should not work in isolation from the other.


The company mowing the lawn influences mowing height, turf stress, and the physical condition of the property.


The lawn treatment company manages fertilization, insects, disease, and other specialized turf treatments.


Irrigation also plays a major role.

When those services operate independently without communication, important information gets missed.


We want to change that.


For Ecoscape clients who choose one of our preferred lawn treatment partners, our goal is coordinated property care.


  • We maintain.

  • They treat.

  • We communicate.


And everyone involved is working toward the same objective: a healthier property.


What Should Homeowners Do?

If you begin noticing rapidly expanding brown or yellow areas in your St. Augustine lawn, do not automatically assume the lawn needs more water.


And do not assume every brown patch is chinch bugs.


Call Ecoscape, and have the problem properly evaluated.


Early identification is especially important because stopping the insects does not restore grass that has already died.


For Ecoscape clients, contact us when you notice something unusual. We will inspect what we see from a landscape maintenance perspective and help coordinate with your lawn treatment provider when appropriate.


If you are looking for a professional lawn treatment company, ask us about the companies we trust and work with.


A Better Standard of Property Care

The chinch bug problem developing in Florida demonstrates why professional property maintenance has to evolve.


Ecoscape does not need to perform every specialized service ourselves.


We need to make sure our clients have access to the right professionals.


That is why we are building relationships with high-quality lawn treatment companies that understand the changing chinch bug problem and are adapting their treatment programs accordingly.


Your lawn treatment company handles the science and treatment.

Ecoscape handles the landscape maintenance.


Together, we watch the entire property.


That is the level of coordination we want for every Ecoscape client.

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