I don't know of a poison that you can use to kill them, but I do know that they usually congregate in the low lying areas. Could you bring in fill dirt to eliminate the low lying area? Thereby eliminating the habitat for the crawfish?

It's crawfish had the same problem when we lived in Gunter. High water table in that area and there everywhere.

A quick google search showed this, maybe pool shock would work.

Well.....you didn't mention that you had THIRTY damn acres of Crawfish!

Sounds like you need to build a berm around it, flood it and raise crawfish instead. How do you plan to poison 30 acres of them? Not a logical solution.

So yes.....back to conditioning the land. You could lightly disc it....but you'll damage the grass. I suppose a picture of the terrain and the crawfish mounds would be helpful.

Jason, I'd call your local AG agent, they likely have dealt with this before, may possibly get some info from your local bulk fert store as well. Area that large, you want to get it right the first time and be done.

Some kind of liquid may work best broadcast over the field, or a dry mix, I sure wouldn't be discing, or plowing in this dry weather here, unless you have a good chance of rain shortly thereafter.

I used to str8 disc my fields with the 24' tandem about every other spring in tif 85, usually after the 1st cutting, sure helps thicken bermuda as long as it got rain over new fertilizer.

^^^^^^

This....guaranteed!

I imagine lye is the only thing that will work.............and I would think timing is everything as they get ready to mate.

Are the holes closed up right now because of the dry and heat?

But GD...........trying to treat 30 acres at one time is gonna be about impossible

They are everywhere. Low ground and high ground.

August 15 2022 to today, I've got 46" of rain. And that is fairly normal.

I'm waiting on a call back from Elorado Chemical out of Whitewright. And I'm going to contact the county extension agent.

I failed to mention plowing after the second hay cutting. Keeping dry ground in fall or winter is extremely rare. Soil analysis is going to be sent off next week and see what some pastures need. Once I know that, plow, fertilize, harrow. But if I don't get rid of these crawfish, I'll be in this exact scenario all over again in a few years. 15 of these acres, I've plowed/ harrowed twice in the last 10 years. You'd never know it, driving across it now, it's so damn rough.

And also the problem is you cant control the neighbors land..............Crawdads crawl out of that hole at night and go visit the females and then there are thousands of new eggs.........

Again.

Spray Grazon.

Then shred it for a while.

I've done it before.

Neighbor land is in cultivation. Got corn on it right now.

I get it. But why?

A lot of hay production in my area and I don't know of anyone that will 'disc' it unless it is to repair Hog Damaged areas. Disturbed, bare soil will always foster weed growth....that has to be dealt with.

But a better understanding of what you are dealing with might be had with pics.

Hope you find a reasonable solution. I fully understand trying to work 'rough' pastures/hay meadows. But mine are from hogs rooting in them.

I have Crawfish 'mounds' in some areas as well but nothing serious.

I am a fifth generation Ag guy. After you disc it, you are still going to need to drag it. Drag it and be done. With your grass intact.

I've already explained why.

Deep east Texas is also probably not Black Land is it?

There's a hay production guru at Eldorado Chemical in Whitewright, TX. He told me he will plow his hay pastures about every 3 to 4 years.

I have not asked a single hay production question. I have asked about crawfish eradication. Zero help so far. And I am not surprised.

I don't care what generation you are.

I've got plenty of acres that were plowed deep with a disc 10 years ago. Then fertilized, the field cultivator, then harrow.

It's some of the best producing land I have. And I did not buy a single seed.

I have not asked a single hay production question. I have asked about crawfish eradication. Zero help so far. And I am not surprised.

I'm confused. I thought crawfish were, well, fish. How can they be in a pasture?

I was ignorant to that last year. We bought some more land at work in Longview and it had those little mounds. I asked a co worker WTF are these? And he looked at me like I had two heads. The little critters would be out of luck here, its so hard the hogs cant even root around. As for getting rid of them, sorry, I cant add anything useful.

I always thought the sand mounds I had were pocket gophers. I got one with my mower when he popped his little head out at the wrong time. Turned him into mini fur coat.

Ok smart guy. Put a couple ounces of lye down each hole, like you have already been told. It will kill the crawfish. Then spend the time and money to make as many passes as you want to make. Your hay patch and your money. If you are lucky by this time next year you will have your grass back to where it is now. Had I known you were going to be a horses [censored] I would not have wasted my time replying.

I'm not walking hole to hole. That would be like mowing two acres with a weed eater. Not efficient at all. I need something to broadcast or spray. I will have grass back. This ain't my first rodeo either.

Not difficult to be a horse's [censored] when your not paying attention and handing out bad advice. I too would have rather you did not spend any time replying. You're wasting internet space.

Let's see a pic of these crawdad mounds that are making a pasture unbearably rough....maybe that will help.

This has worked in the past for me

Obviously is if you don’t know how to deal with crawfish in a hay field. If in fact you have black land it is a shrink swell soil. It is self aerating. In the summer when it dries out and cracks open it aerates itself. Then when it gets wet it swells up like bred dough and closes back up. The drier it gets the more the crawfish mounds grow as they follow the water table down. Broadcast whatever you want to. Until you get what you put out down where they are though, you are pissing in the wind. Hire a high school kid from a good family and he will treat them all in a day or two. However you treat them they will come back. Eventually you will be dragging the hay field to knock them down like every one else does or working on your cutter from running the blades in the dirt. That is from a man that tends to 120,000 acres. So no, I am not wasting band width.

There is ZERO products labeled for control of crawfish.
Lye is the one thing that does work!
Good luck!