Grub damage apparent in Miami Valley lawns


Last week one of our Master Gardener Volunteers mentioned that she came home to a back yard that was completely destroyed by skunks. This is a telltale sign that there were grubs in the lawn.

This time of the year skunks are really good at finding what some call “land shrimp,” or white grubs in lawns. They aren’t delicate when feeding, either.

This week my husband said, “I think we have grubs,” and proceeded to show me brown spots in the lawn that rolled up just like carpet. Another telltale sign — and indeed, we had grubs.

It appears that white grubs are damaging Miami Valley lawns and in some cases, they are really wreaking havoc.

Grub damage is fairly easy to spot and right now, the grubs themselves are quite visible.

Damaged turfgrass turns brown and then eventually a grayish color. The turf area itself is sort of matted or flattened.

When you tug at the dead grass, it comes up easily because the roots are completely destroyed by grub feeding.

If you have brown spots and tug at the grass and it doesn’t come up easily, it could be the result of another turfgrass insect such as bluegrass billbug.

Normally if you find grub damage in the fall, the recommendation is to wait until spring to apply grub control products.

However, this fall is somewhat different. Due to the warmer weather, grubs are at the surface and are actively feeding right now.

You can apply a pesticide and kill them at this time, however, you have to make sure that you use the right product and that you water it in.

The right product is one that contains trichlorfon or carbaryl. These two active ingredients will do the job in the fall as a curative – if they are watered in.

Trichlorfon is found in products such as Dylox or 24 Hour Grub Control. Carbaryl is found in Carbaryl or Sevin.

Read the label prior to application and don’t forget to water in! This is very important as your application is useless if you don’t.

The best option is to apply prior to a good rainfall in which we get at least one-half inch of rain.

If you don’t have time to make this fall curative application, it is a good idea to use imidacloprid, chlorantraniliprole, thiamethoxam, and clothiandin next spring in order to prevent damage next season.

The grubs I have found are not Japanese beetle grubs but chafers. These are the brown beetles you find at your porch lights in the summer.

This sort of makes sense because our Japanese beetle adult populations this summer were relatively mild in my area but the chafers were out in full force.

Remember that a fall curative application of grub control must be watered in to be effective!



Reader Comments ...


Next Up in Local

Slower speed in Sugarcreek Twp.? Engineer’s effort hits roadblock.
Slower speed in Sugarcreek Twp.? Engineer’s effort hits roadblock.

The Greene County engineer said the speed limit needs to be reduced on Wilmington-Dayton Road near where a developer wants to build homes, but his efforts hit a roadblock Friday when Sugarcreek Twp. trustees refused to sign a letter supporting the recommendation. A group of about a dozen concerned residents attended the township’s special meeting...
5 new electric buses will be coming to Dayton with $5.7M federal grant
5 new electric buses will be coming to Dayton with $5.7M federal grant

A $5.7 million federal Department of Transportation grant will help the Greater Dayton Regional Transit Authority add five new “NexGen” buses to its fleet. The award announced Friday assists RTA in fulfilling a plan to replace 20-year-old technology with newer, more efficient models expected to last another 20 years, according to officials...
Touchdown 7 Football forecast: Week 5
Touchdown 7 Football forecast: Week 5

Halfway through the Touchdown 7 Football season, Sports Director Mike Hartsock said he is hoping for nice weather this week. While skies stayed dry for Thursday’s games, tonight’s games will be in jeopardy of storms, Storm Center 7 Meteorologist McCall Vrydaghs said. The Arby’s Touchdown 7 Football Game of the Week is Carroll at Chaminade-Julienne...
Franklin police to step up traffic, impaired enforcement with grants
Franklin police to step up traffic, impaired enforcement with grants

Franklin police has received a pair of traffic enforcement grants that will begin in the new fiscal year starting Oct. 1. Police Chief Russell Whitman said the purpose of these one-year grants is to aggressively enforce selected traffic offenses in the city of Franklin. The first traffic enforcement grant is a part of Ohio’s Impaired Driving...
5 people, including 3 infants, stabbed at unlicensed New York City daycare
5 people, including 3 infants, stabbed at unlicensed New York City daycare

Five people, including three infants between the ages of 3 days and 1 month, were in critical condition Friday after they were stabbed at an unlicensed daycare center in New York City, according to police and reports. >> Read more trending news  Authorities said a 52-year-old woman, identified as a suspect in the case, was found at the...
More Stories