Moles in back yard eating my grass

Asked July 28, 2020, 4:57 PM EDT

Its been years now and i spent lots of money on my back yard in order to Grow grass but each time we do that ,it goes away and ends up by having No Grass And Only weeds grow. I need help soon. We applied Scott Grubs seeds twice in the spring and June. But No luck to save our Grass.

Anne Arundel County Maryland

1 Response

Moles do not feed on your grass. Moles create shallow feeding tunnels in lawns and feed on soil insects including earthworms, grubs, etc. They do not cause plant damage. Moles usually move on when their food supply and habitat changes. Mole activity can be seasonal and often stops on its own so in many cases control is not needed. Tamp down raised tunnels with your foot whenever they appear. Repellents and grub control products are not recommended for a mole problem as they just feed on other soil insects. See more on moles https://extension.umd.edu/hgic/topics/moles

Grub control products are only recommended if grubs are feeding on your turf roots.
Make sure you have a grub problem.
Reasons to apply a grub control include - a 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. It is normal and not problematic to have a few grubs in the soil (in fact, helpful because it keeps the grub predators around.) Unless you are seeing around 10 per square foot, and your lawn suffered severe damage last fall, it does not warrant the expense and impact of spreading any pesticides.

This does not look like grub damage. There may be several reasons for brown spots and decline of your turf and we cannot say why. The brown spots may be due to seeding with improper turf grass species, annual grasses may be dying out, there may be a lot of competition for tree roots for moisture and nutrients, brown patch a fungal disease https://extension.umd.edu/hgic/topics/brown-patch-lawns, etc.

It is not easy to grow a lawn in MD. Cool season grasses grow well in the spring and fall and warm season grasses like zoysia grow best in the summer and goes dormant in the winter. In general, When the turf gets thin, weeds move in. Take a look at basic practices for lawn care https://extension.umd.edu/hgic/topics/best-practices-lawn-care

In your photos we think the majority of the lawn is a type of weed called nutsedge. Look at our website for identification.
It is not easy to control and may require several applications of an herbicide https://extension.umd.edu/hgic/topics/yellow-nutsedge

If you want to grow grass, fall is the best time. Turf type tall fescue is recommended for full sun to partial shade. You may want to consider tall fescue sod. Turf type tall fescue is the recommended turf grass for full sun to part shade. Take a look at recommended tall fescue cultivars.
https://extension.umd.edu/sites/extension.umd.edu/files/_docs/programs/hgic/Non_hgic_pubs/TT-77%20Re...
The majority of sod produced is a mixture of tall fescue with some Kentucky bluegrass to help it knit together. It is recommended to to purchase certified sod certified by the MD dept of Agriculture https://mda.maryland.gov/plants-pests/Documents/MDSODDIRECTORYUPDATEDJnov2018.pdf

You may want to wait until the temperatures moderate before laying the sod about late summer to early fall. Now you can test the soil for pH, liming, organic matter, and nutrient deficiencies and control difficult weeds like nutsedge.
You can make adjustments and add organic matter if needed when preparing the soil. Here is information on soil testing https://extension.umd.edu/hgic/topics/soil-testing

See our publication on Site Preparation page 4 and Sod page 6.
https://extension.umd.edu/sites/extension.umd.edu/files/_docs/programs/hgic/HGIC_Pubs/lawn_pubs/HG10...
https://extension.umd.edu/hgic/topics/lawn-renovation-and-overseeding

If you are not successful growing grass, consider a lawn alternative. https://extension.umd.edu/hgic/topics/lawn-alternatives

Marian