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Apr 1, 2018 9:34 AM CST
Name: China
Woodbridge, VA (Zone 7a)
Can anyone tell me what these are? They started out as a small area in one corner of my yard but have spread to cover half the yard within a week. I'm in Northern VA right outside of DC.
Thumb of 2018-04-01/chinwa3/af3eae
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Apr 1, 2018 9:37 AM CST
Name: Philip Becker
Fresno California (Zone 8a)
Earthworm castings.
Good for soil !👍👍👍
😎😎😎
Anything i say, could be misrepresented, or wrong.
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Apr 1, 2018 9:38 AM CST
Name: Porkpal
Richmond, TX (Zone 9a)
Cat Lover Charter ATP Member Keeper of Poultry I was one of the first 300 contributors to the plant database! Dog Lover Keeps Horses
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They look like crayfish chimneys to me. Is it a damp area?
Porkpal
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Apr 1, 2018 9:40 AM CST
Name: China
Woodbridge, VA (Zone 7a)
Thanks for the info, and quick reply! I have a grub problem every year so I was going to put down some Grub-Ex today. Is this a good idea if the earthworm castings are good for the soil?
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Apr 1, 2018 9:42 AM CST
Name: Lin Vosbury
Sebastian, Florida (Zone 10a)

Region: United States of America Region: Ukraine Region: Florida Charter ATP Member I was one of the first 300 contributors to the plant database! Million Pollinator Garden Challenge
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My guess is that it is a miner bee or some sort of wasp nests.
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!


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Apr 1, 2018 9:51 AM CST
Name: Lin Vosbury
Sebastian, Florida (Zone 10a)

Region: United States of America Region: Ukraine Region: Florida Charter ATP Member I was one of the first 300 contributors to the plant database! Million Pollinator Garden Challenge
Birds Butterflies Bee Lover Hummingbirder Container Gardener Houseplants
Many bees nest in the ground: https://www.ces.ncsu.edu/depts...

Images of nest mound entrances:
https://www.bing.com/images/se...
https://www.bing.com/images/se...

Cicada wasps nest in the ground too; last year we had many sand Cicada wasps and mounds all over our lawn but their entrance holes are larger than the ones that ground bees make.
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!


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Apr 1, 2018 10:02 AM CST
Name: Sue Taylor
Northumberland, UK
Amaryllis Region: United Kingdom Houseplants Frogs and Toads Foliage Fan I was one of the first 300 contributors to the plant database!
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Worm casts for me as well. Think carefully before you put anything in the area as there are lots of beneficial insects etc in your lawn as well as some pests.
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Apr 1, 2018 10:35 AM CST
Name: China
Woodbridge, VA (Zone 7a)
Thanks all for the replies; I appreciate it.
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Apr 1, 2018 11:21 AM CST
Name: Sue
Ontario, Canada (Zone 4b)
Annuals Native Plants and Wildflowers Keeps Horses Dog Lover Daylilies Region: Canadian
Butterflies Birds Enjoys or suffers cold winters Garden Sages Plant Identifier
I believe they are ant hills. Note the hole in the middle of the mounds and compare with these pictures:

http://extensionpublications.u...
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Apr 1, 2018 11:26 AM CST
Name: Karen
New Mexico (Zone 8a)
Region: New Mexico Region: Arizona Region: Ukraine Cactus and Succulents Plant Identifier Plays in the sandbox
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We've had holes like those on our land. They were ants, but I'm not sure which species they are.
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