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Killing crawfish in your yard?

Posted on 4/24/18 at 1:38 pm
Posted by reggo75
Iowa, LA
Member since Jan 2016
1433 posts
Posted on 4/24/18 at 1:38 pm
I live in a subdivision that was made on old rice field property. Certain areas of my yard (the lower areas) stay pretty thick with crawfish clods.

All that damn mud clogs up the deck on my mower.

Is there something I can spray on my yard that would kill them or keep them away?

You think Talstar would do the trick?

Thanks
Posted by Clyde Tipton
Planet Earth
Member since Dec 2007
38736 posts
Posted on 4/24/18 at 1:39 pm to
Just levee and flood it.
Posted by celltech1981
Member since Jul 2014
8139 posts
Posted on 4/24/18 at 1:42 pm to
Can I run some traps?
Posted by lsugrad35
Jambalaya capital of the world
Member since Feb 2007
3182 posts
Posted on 4/24/18 at 1:43 pm to
Pour crawfish boil into the holes...
Posted by Tiger Prawn
Member since Dec 2016
21901 posts
Posted on 4/24/18 at 1:58 pm to
Run traps and host a boil. Problem solved.
Posted by Count Chocula
Tier 5 and proud
Member since Feb 2009
63908 posts
Posted on 4/24/18 at 2:23 pm to
Drop one of these down the opening...

Posted by Milescb28
New Orleans
Member since Oct 2008
197 posts
Posted on 4/24/18 at 2:32 pm to
I have heard moth balls but never tried it myself. Just break the chimney thing off and use a straight stick to push them down the hole. Anyone else heard of doing this?
Posted by Cowboyfan89
Member since Sep 2015
12715 posts
Posted on 4/24/18 at 2:54 pm to
Crawfish are sensitive to any amount of water pollutant.

So...just pour diesel in your yard...should do the trick.

ETA: in all seriousness, I think the AgCenter recommends using lye. Put about a tablespoon down the burrow, and that should do the trick.
This post was edited on 4/24/18 at 2:57 pm
Posted by Geauxtiga
No man's land
Member since Jan 2008
34377 posts
Posted on 4/24/18 at 4:08 pm to
Bootlegger gonna shoot me cause it's not labeled for this. Mix 2 oz per gallon of permethrin, kick over mud tower, spray a squirt in hole, will work.
This post was edited on 4/24/18 at 4:09 pm
Posted by Higgysmalls
Ft Lauderdale
Member since Jun 2016
6442 posts
Posted on 4/24/18 at 6:02 pm to
Google it. there was a article done on NOLA.com a while back. Dan Gill from LSU says to use Lye. Also i didnt know that the ones that make the chimneys are not the kind of crawfish we eat.
Posted by jimbeam
University of LSU
Member since Oct 2011
75703 posts
Posted on 4/24/18 at 6:05 pm to
Cook some rice baw
Posted by rattlebucket
SELA
Member since Feb 2009
11451 posts
Posted on 4/24/18 at 6:08 pm to
I have same exact problem. The kids like to dig them out but those suckers have holes that are 3 ft deep!

Why cant you eat them? Same crawfish. How can we catch them?
Posted by Higgysmalls
Ft Lauderdale
Member since Jun 2016
6442 posts
Posted on 4/24/18 at 6:12 pm to
i think the guy in the article means that they are not Red Swamp Crawfish. you can still eat them but they are not the same as you would buy from a farm. there are a bunch of types of crawfish
Posted by Citica8
Duckroost, LA
Member since Dec 2012
3665 posts
Posted on 4/24/18 at 8:17 pm to
Sounds like an opportunity to work on your golf swing
Posted by Spankum
Miss-sippi
Member since Jan 2007
56034 posts
Posted on 4/24/18 at 8:23 pm to
Don't underestimate the intelligence of crawfish...just ice down a case of beer on your patio and then throw some corn and new potatoes around the yard....they will get the fricking message.
Posted by Cowboyfan89
Member since Sep 2015
12715 posts
Posted on 4/24/18 at 10:41 pm to
quote:

Also i didnt know that the ones that make the chimneys are not the kind of crawfish we eat.

We have something like 20 or 30 different species of crawfish in the state, and only 2 are commercial varieties--the red swamp and white river.

There are 3 different groups of crawfish based on their propensity to burrow: primary, secondary, and tertiary. Primary and secondary burrowers are your typical "chimney" species. Red Swamp (the kind you typically boil) are actually primary burrowers, but can and do function in all 3 classes. The tertiary burrowers are those that live in streams and bayous, and only dig shallow burrows with no chimneys.
Posted by keakar
Member since Jan 2017
30026 posts
Posted on 4/25/18 at 12:17 am to
its really easy, just poor a cup of regular gasoline down the hole with a funnel, then remove mud tube and toss in a pile to dry up. the crawfish (and any eggs it might have) dies and becomes fertilizer, no grass dies, no viable evidence of what you did

its the one 100% certain result of anything you use on them
Posted by Tiger-Striped-Bass
The Bay Area
Member since Dec 2004
1266 posts
Posted on 4/25/18 at 7:19 am to
quote:

I have heard moth balls but never tried it myself. Just break the chimney thing off and use a straight stick to push them down the hole. Anyone else heard of doing this?


I tried that years ago, and all they did was push them back out. After a couple days, each hole/mound had moth balls sitting out at the entrance. Ant poison granules will work. Bleach may work as well.
Posted by reggo75
Iowa, LA
Member since Jan 2016
1433 posts
Posted on 4/25/18 at 9:44 am to
All you guys talking about addressing EACH HOLE with a treatment of some kind... ummm... there are literally hundreds (maybe thousands?) of these things in my yard.

I looked up some online ideas and Lye seemed to be the consensus but it was a "treat every hole" option and had to be reapplied often.

My yard is about 2-1/2 acres.

I came to the OB to see if you guys had any other broad spectrum approaches.
Something I can spray or apply in bulk.
Posted by Cowboyfan89
Member since Sep 2015
12715 posts
Posted on 4/25/18 at 1:22 pm to
quote:

Something I can spray or apply in bulk.

As crazy as this sounds, it would have to be something that you could spray over water. At least that's the way I see it, because you are talking about crawfish. Those burrows go into the groundwater.

Probably why the only recommendation from the AgCenter is lye in every hole.
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