Grubs

Asked October 31, 2018, 10:24 AM EDT

Last year & this year squirrels torn up my lawn, at night, digging for grubs. I didn't know it was grubs until this year. I thought it was moles or voles. What can I do to get rid of the grubs and stop the squirrels from digging up my lawn. They went all around the house. Thanks

Anne Arundel County Maryland lawns and turf wildlife

1 Response

Squirrels can dig for a number of reasons and this can be frustrating. If you feed the birds you should stop for a while because as you know this also attracts squirrels. Squirrels may be burying acorns in your lawn, but it may be another critter producing the damage that you are seeing.

It is more common for skunks, raccoons, and fox to create holes in the lawn (at night) while searching for grubs or earthworms. Take a look at our website for photos
http://extension.umd.edu/hgic/topics/skunks
http://extension.umd.edu/hgic/topics/lawn-wildlife-problems

Send us photos so we can see what you may be dealing with.

You may also want to check for grubs in your lawn. Make sure you have a grub problem. Reasons include past history of grubs, if you have a sprinkler system that keeps the soil moist for egg laying, and if we have weather conditions like wet summers and lush lawns while the adult beetles are active in June. The turf can be rolled back from the soil like a rug this is usually in late summer to early fall. Look for grubs in the upper soil surface, you may need to dig with a trowel. If the grub count exceeds 6-8 per square foot, you may want to consider treating for grubs.
In general, adult egg laying begins in July and root feeding begins in August. Grub controls are applied as a preventative (time frame is mid June through August). Look for a season long grub control that contains the active ingredient Chlorantraniliprole. This product is more environmentally friendly. See our publication on japanese beetles for more information
http://extension.umd.edu/hgic/grubs-lawns

Now all you can do is look for grubs. If you continue to have problems, you can put down a grub control as mentioned above, next season. You will have to do some reseeding in the spring.

mh