User avatar
TheWaterbug
Greener Thumb
Posts: 1068
Joined: Mon May 02, 2011 9:15 pm
Location: Los Angeles

What pest digs a neat little cylindrical hole like this?

As I inspected my month-old corn plants, I saw this:

Image

I've seen 2-3 of these in my last corn row in the past few weeks, and this row is doing the poorest amongst the 4 rows I planted (worst germination rate, slowest growth).

Does this look like something digging in or something digging out?

I seem to unearth a lot of Jerusalem Crickets whenever I till. Do they make holes like this when they emerge?

Heh; there's nothing like a Jerusalem Cricket in the house to freak out the women and children :D
Sunset 23/USDA 11a, Elev. 783', Frost free since 8,000 BC. Plagued by squirrels, gophers, and peafowl, but coming to terms with it!

User avatar
hendi_alex
Super Green Thumb
Posts: 3567
Joined: Sun Jul 06, 2008 11:58 am
Location: Central Sand Hills South Carolina

Re: What pest digs a neat little cylindrical hole like this?

Why does it have to be a pest? Could be a beneficial. Perhaps a wolf spider or some kind of hornet or wasp.
Eclectic gardening style, drawing from 45 years of interest and experience. Mostly plant in raised beds and containers primarily using intensive gardening techniques.
Alex

User avatar
PunkRotten
Greener Thumb
Posts: 1990
Joined: Sun Apr 17, 2011 12:48 am
Location: Monterey, CA.

Re: What pest digs a neat little cylindrical hole like this?

June bug larvae dig holes like that. But I can't say for sure that is what dug your holes.

bnoles
Full Member
Posts: 18
Joined: Sun Sep 16, 2012 8:59 am
Location: NW Atlanta, GA -Zone 7-

Re: What pest digs a neat little cylindrical hole like this?

Maybe a vole or a mole?
Cheers!
Bob

User avatar
hendi_alex
Super Green Thumb
Posts: 3567
Joined: Sun Jul 06, 2008 11:58 am
Location: Central Sand Hills South Carolina

Re: What pest digs a neat little cylindrical hole like this?

A vole is a field mouse. There is a lot of confusion concerning voles and moles. Moles don't eat plant roots for example. Moles a insect/grub eating predators. But voles love to use mole tunnels. Voles get in the tunnels and munch on roots of plants that grow from above. They will devour many bulb plants. So moles by themselves are beneficial, both eating bad critters and for aerating the soil. But indirectly, they open the yard for the destructive habits of the vole.
Eclectic gardening style, drawing from 45 years of interest and experience. Mostly plant in raised beds and containers primarily using intensive gardening techniques.
Alex

User avatar
applestar
Mod
Posts: 28180
Joined: Thu May 01, 2008 11:21 pm
Location: Zone 6, NJ (3/M)4/E ~ 10/M

Re: What pest digs a neat little cylindrical hole like this?

Especially this year, it could also be cicada -- not sure if you get them as much there, waterbug.
Learning never ends because we can share what we've learned. And in sharing our collective experiences, we gain deeper understanding of what we learned.

cynthia_h
Super Green Thumb
Posts: 7501
Joined: Tue May 06, 2008 11:02 pm
Location: El Cerrito, CA

Re: What pest digs a neat little cylindrical hole like this?

I haven't heard of cicadas in California. Thank heavens....

Not sure what's leaving these holes. If they're only 1.5 inches (3 cm) deep, I nominate Fluffy-Tailed Rats (aka "squirrels"). I have, more times than I care to discuss, found empty peanut shells in such holes, dug where there were formerly young seedlings. :x

Cynthia H.
Sunset Zone 17, USDA Zone 9

User avatar
TheWaterbug
Greener Thumb
Posts: 1068
Joined: Mon May 02, 2011 9:15 pm
Location: Los Angeles

Re: What pest digs a neat little cylindrical hole like this?

I don't think they're squirrels, because the holes are too small, and that row of corn is underneath some pretty rigid plastic mesh. The squirrels could pull the mesh off, but they couldn't put it back down, and there's no evidence of them being in there.

No cicadas in CA :)

I suppose it need not be a pest, but the fact that I'm seeing holes only in the one row that's underperforming makes me wonder.
Sunset 23/USDA 11a, Elev. 783', Frost free since 8,000 BC. Plagued by squirrels, gophers, and peafowl, but coming to terms with it!

User avatar
watermelonpunch
Senior Member
Posts: 207
Joined: Sun May 05, 2013 12:04 pm
Location: Pennsylvania USA

Re: What pest digs a neat little cylindrical hole like this?

I think that hole is too small for a vole. I've seen voles, they're as big as the smallest mice.
That said, it's really tough to judge distance in a picture like that without something for reference.

What's the diameter of the hole?

Could it be a sweat bee hole?

Image

If you've got sweat bees in your garden that should be a boon!!!

I don't know if that's what you got, but that's what's I found in my little hole.
This was in the lawn last year.
My husband put up a little posted pink flag near the hole so I wouldn't step on it. ha ha
I'd say it was less than a half inch wide... the hole itself I mean.
Not all sweat bees are green like this one, and they may vary in types in different regions. (I'm in PA.)


Append: Squash bees also dig holes like this (I remember I wanted them even more last year because my zucchini was a big disappointment because of poor pollination.)

Also, you could have a causation problem... Your idea that the holes have something to do with the poor crops nearby... Could be that the same thing causing those crops not to do as well, could be the same thing that made the spot attractive to whatever's digging the holes. Just a possibility.
Northeastern Pennsylvania
USDA zone 6a bordering 5b, Sunset Zone 37 bordering 42
I'm brainwashing you with this signature block.
watermelonpunch.com

tomc
Super Green Thumb
Posts: 2665
Joined: Sun Apr 10, 2011 6:52 am
Location: SE-OH USA Zone 6-A

Re: What pest digs a neat little cylindrical hole like this?

1/2 inch would be small for a crayfish hole...
Think like a tree
© 2016 Invisable Inc.

Tonio
Green Thumb
Posts: 357
Joined: Tue Jan 03, 2012 3:07 pm
Location: San Diego, CA !! Z10/SS24

Re: What pest digs a neat little cylindrical hole like this?

Could be a grub hole.
San Diego / Z10
-------------------

JohnnyB60
Senior Member
Posts: 125
Joined: Fri Oct 05, 2012 3:59 am
Location: Southern CA High Desert

Re: What pest digs a neat little cylindrical hole like this?

I have wasps that make similar holes or at least I’ve seen them climbing in and out of them. don't know what they are doing exactly, but I assume they are gathering mud for their hives. :roll:
Image

User avatar
watermelonpunch
Senior Member
Posts: 207
Joined: Sun May 05, 2013 12:04 pm
Location: Pennsylvania USA

Re: What pest digs a neat little cylindrical hole like this?

I didn't know about wasps, but I think there are other bees besides sweat bees that burrow in the ground.

But look up "ground digger wasps".
Apparently they're quite a nuisance in some places. (I imagine that would be quite a nightmare at a playground!)
tomc wrote:1/2 inch would be small for a crayfish hole...
That, and I don't see a brook or stream in the picture. LOL
??? :?: :?: :?: ???
Northeastern Pennsylvania
USDA zone 6a bordering 5b, Sunset Zone 37 bordering 42
I'm brainwashing you with this signature block.
watermelonpunch.com

Return to “Vegetable Gardening Forum”