What bugs kill St Augustine grass?

Asked By: Concesa Zack | Last Updated: 25th February, 2020
Category: home and garden landscaping
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Chinch Bugs in St. Augustine Lawns
  • The southern chinch bug, Blissus insularis Barber, is one of the most important insect pests of St.
  • Although it is a serious pest only on St.
  • Expanding, irregular patches of dead or stunted grass surrounded by a halo of yellowing, dying chinch bugs.

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Similarly, you may ask, what kills chinch bugs in St Augustine grass?

Augustinegrass or zoysiagrass, you could be entertaining a whole troop of chinch bugs. These nasty little critters suck your grass blades dry. Then they inject a poison that kills them. They can kill patches or your entire lawn.

Subsequently, question is, will St Augustine recover from chinch bugs? After the grass is brown, it won't grow back; you'll have to replace that section of grass. Although they infest several types of grass, chinch bugs highly prefer St. Augustine grass (Stenotaphrum secundatum), which grows in U.S. Department of Agriculture plant hardiness zones 8 through 10.

Besides, what is eating my St Augustine grass?

Chinch bugs Augustine grass that's so prominent in Northeast Florida. Once they're in your yard, chinch bugs stay on the move, eating the base of grass stems and destroying one patch of grass before heading for another spot. A serious chinch bug infestation can damage a lawn to the extent that all new sod is needed.

Does Dawn dish soap kill chinch bugs?

Dish soap kills bugs by melting the waxy coating on their exoskeletons. This means all bugs with exoskeletons will die if you use dish soap, not just chinch bugs.

35 Related Question Answers Found

What is the best insecticide for chinch bugs?

Chemical Control
Chemicals such as trichlorfon, bifenthrin and carbaryl can help homeowners effectively control chinch bugs in lawns. Trichlorfon is available in granular form and is applied to lawns using a seed spreader to evenly distribute the insecticide.

What are the signs of chinch bugs?

Since chinch bugs feed on and kill the grass, a homeowner's first sign of chinch bugs is usually the appearance of round yellow or dying patches of grass in their lawn. As their host plant dies, chinch bugs move to neighboring grass plants to continue feeding creating dead patches that get larger over time.

How do I repair my lawn after chinch bugs?

Reseed the spots left bare from chinch bug damage.
After ridding the lawn of chinch bugs, reseed the patches. If you're using a two-application chemical treatment, you needn't wait until the second treatment to reseed—you can reseed immediately after the initial dose of pesticide.

How do you fix brown spots in St Augustine grass?

6 Steps to prevent brown patch fungus in your St. Augustine grass:
  1. Step 1: What time is it?
  2. Step 2: It's true your grass needs water, but not too much!
  3. Step 3: Avoid Using Nitrogen rich fertilizer in early spring and late Fall.
  4. Step 4: Ensure good drainage and treat compacted soil.
  5. Step 5: Control your Clippings!

When should you treat for chinch bugs?


Instead of spot treating in the damaged areas, broadcast spray over the entire lawn. Start on the edge and work your way in. Applying in early summer will help kill the active nymphs before they mature into adults. Chinch bugs mate quickly so the population can grow very fast.

How often should you treat for chinch bugs?

Use spot treatments where chinch bugs are restricted to isolated areas of the lawn. Treat the off-color turf and all surrounding infested areas. Inspect the site every 3 to 5 days for at least weeks to determine if the infestation is under con- trol. Spot treatments help prevent environmental contamination.

How do you keep St Augustine grass from dying?

Mow your lawn every 10 days, keeping the St. Augustine grass as high as possible, such as 3 to 4 inches. At this height, your lawn can better resist weed and pest invasions, and it also encourages deeper rooting and reduces stress on the plant. Leave the grass clippings on the surface of your lawn.

What does a grub look like?

What do grub worms look like? No matter the exact species, all white grubs are milky white in color with C-shaped bodies. They boast brownish heads and six spiny legs. They are small initially but can grow to 1 and 2 inches in length at maturity.

How do I aerate my lawn?

Aerating Tools: Plug Aerator vs.
With a spike aerator, you simply use the tool to poke holes into the ground with a solid tine, or fork. Plug aerators remove a core or plug of grass and soil from the lawn. For the best results, use an aerating tool or machine that actually removes plugs of soil.

What does chinch bug damage look like?


What Does Chinch Bug Damage Look Like? In the early stages of chinch bug damage, grass will begin to yellow. Next, grass will turn brown and die. As the grass dies, chinch bugs will move to the perimeter of the dead grass, causing dead patches of grass to spread outward.

How do I kill bugs in my lawn?

Dissolve two tablespoons of dish washing detergent (lemony scents work best) in two gallons of water. Pour the solution over a square-yard area of lawn. Observe carefully. You may spot mole crickets, chinch bugs, cutworms or armyworms scrambling up from soil and grass to escape the suffocating soap.

How do you get rid of chinch bugs naturally?

Ladybugs or lacewings will kill chinch bugs and won't hurt your lawn. Spot treat sections with organic products. Some companies, such as Planet Natural, offer an organic product called Safer Soap that you can use to kill chinch bugs. Dust your lawn with organic diatomaceous earth.

Does GrubEx kill chinch bugs?

Right now is a good time to treat for both chinch bugs and grubs, because one application of the same insecticides (imidacloprid, clothianidin, or thiamethoxam) works very well for both pests. For homeowners, look for GrubEx, Season-Long Grub Control, Grub & Lawn Insect Control, or Grub Stop Once & Done.

How do you prevent chinch bugs?

To do what you can to avoid chinch bugs infestations, here are five things to know.
  1. Keep grass long. "Don't cut your lawn so that it looks like a putting green, the chinch bugs love that," said Gordon.
  2. Water heavily — but not too often. Chinch bugs like dry grass.
  3. Aerate lawn in spring.
  4. Use soap to get rid of chinch bugs.

Can chinch bugs be transferred by lawn mowers?


Mowers cannot transport chinch bugs from one site to another because the chinch bugs don't get on the grass blades.

Will soapy water kill chinch bugs?

Wait 15 - 20 minutes and then look for the bugs that will attach themselves to the fabric. Put the cloth in a bucket of soapy water to remove them. With chemical treatment, you will remove not only the chinch bugs, but also many other soil organisms needed to build a healthy lawn.

Do chinch bugs come back every year?

Chinch bugs reproduce quickly — a female can produce about 300 eggs in 40 days. Because they are rapid reproducers, there are two to three generations of chinch bugs every year. It doesn't take long for these pests to reach populations as large as 200 bugs per square foot.