Extension > Garden > Diagnose a problem > What's wrong with my plant? > Turf > Uneven bumps, mounds, or ridges in lawn
Turf > Uneven bumps, mounds, or ridges in lawn
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Eastern Moles
- Fairly straight to irregular lines of raised ridges of grass with no openings
- Scattered mounds of soil present within ridge system; 1 pint to 2 quarts in volume
- Grass on ridges can turn brown and dry out quickly
- Most apparent in early summer and again in September to October
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Meadow Voles
- No soil mounds present, but small, irregular shaped trails on lawn surface
- Especially visible just after snow melt
- Loose grass blades on tops of tail give the appearance of ridges, but soil is not raised
- Grass plant usually not killed, but may be slower to come back in the spring
- More info on controlling voles
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Nightcrawlers
- Occurs during early to mid-spring; can remain throughout the summer
- Small, conical bumps randomly distributed through lawn
- 4 to 8 inches long and reddish-brown
- More information on Nightcrawlers
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Cornfield Ant
- Small, about 1/8 inch wide, hole generally surrounded by a conical mound of dirt
- Found in areas where grass in thinning or bare
- Found anytime during spring or summer
- Ant 1/10 inch long and brown
- More information on Cornfield Ant
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Field Ant
- Large mounds with numeroud 1/8 to 1/4 inch wide holes
- Found in healthy lawns as well as thinning turf
- Found anytime during spring or summer
- Ant 1/8 to 1/4 inch long and black or black and red
- More information on Field Ant
