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Screwworm is here...

73,980 Views | 469 Replies | Last: 1 day ago by ShinerDunk93
Tecolote
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Deerdude said:

OK, wrong terminology for the enlightened, it's what the field guys call it. That's who I deal with. Not the first time I've said the wrong word for the situation. My apologies.

You seem to be defending the field guys too much. If they used the term vaccine for dectomax, I would be worried about their training and knowledge. It would be like a doctor or someone in the medical field saying the shot of penicillin is a vaccine. I would find another doctor quickly!
BrazosDog02
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Meh...he's not defending anyone. He told us exactly why he said what he did. On top of that, we all knew what he meant and it really isn't a big deal. JFC.

Posters could explain what a vaccine is in a concise, educational way. No need to call out a poster so they can show everyone how much they think they know.
Deerdude
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Hey if I need to eat crow or whatever, so be it. I'm on the tread to learn and there's typically some great experience posting. I'm just sharing what I'm going through hoping maybe it helps someone as well. If I have to get hammered then hammer away.
GottaRide
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GottaRide said:

JB!98 said:

shiftyandquick said:

RGV AG said:

When we moved to the Valley in the early 80's, around 82', and for years after that you would see all the signs along the roads and such. My memory fades nowadays but I want to say that the place making the sterile fly's in Mission, it was at the old Moore Field airbase, was in operation until the mid-80's when it was all transitioned to Mexico. There were news stories and articles and I wanna say someone I grew up with had a dad involved in it.

As a kid my parents would drive back and forth from CDMX to Houston, and other parts, at least 2 to 3 times a year. On those trips there were always several agriculture checkpoints on the Mexican highways, I remember those. We usually traveled with dogs and if the check point saw the dogs in the car they would pull you over and inspect. Surprisingly enough crossing the border with dogs in the 1970's, and according to my parents in the 60's as well, was a much more formal deal, it was nothing in the 80's through the 20's. I now believe it was due to the screw worm, but I was too young to know.

There were strict quarantine areas and controls in Mexico for years (that lots of folks circumented I am sure). In the late 80's and through the 90's when I was spending a lot of time roaming around Northern Mex, and doing as much hunting and fishing as possible, I know ranchers would occasionally run into screw worm issues but they were very secretive about it as they had no faith in the MexGov to help them with it.

Where I lived in Central America it was around, and never went away completely, but it was not treated with the dire alarm that we are seeing in the U.S.. Why? I have no idea. I am not an ag man at all, so all of this is just purely observation from an unknowing point of view.

In the quarantined areas now, all transported warm-blooded animals are required to be inspected before they can leave the area. That includes pets (e.g. dogs).

I am not concerned at all about this, but this may be the place (as always) to settle this with my wife. She is concerned that we are taking our Pyrenees and Aussie to Concan next week to hang out on the river. We will be there 4 days. She is determined that the dogs have to be inspected before we can leave the county. I don't believe that to be the case in that they are not living in the county. (Unless they have a lesion or cut)

What say you TexAgs? If we have to get them inspected on the way back, we will do it, but if not, I contend that is so low risk that it is almost comical.


Concan is not in the infected zone- just the surveillance zone. No inspection is required unless leaving the infected zone.


Looks like my info was outdated. Uvalde County has a confirmed case and Concan does appear to be in the infected zone. Checkpoints are only for livestock, though. The order and what is in practice are not the same.
JB!98
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GottaRide said:

GottaRide said:

JB!98 said:

shiftyandquick said:

RGV AG said:

When we moved to the Valley in the early 80's, around 82', and for years after that you would see all the signs along the roads and such. My memory fades nowadays but I want to say that the place making the sterile fly's in Mission, it was at the old Moore Field airbase, was in operation until the mid-80's when it was all transitioned to Mexico. There were news stories and articles and I wanna say someone I grew up with had a dad involved in it.

As a kid my parents would drive back and forth from CDMX to Houston, and other parts, at least 2 to 3 times a year. On those trips there were always several agriculture checkpoints on the Mexican highways, I remember those. We usually traveled with dogs and if the check point saw the dogs in the car they would pull you over and inspect. Surprisingly enough crossing the border with dogs in the 1970's, and according to my parents in the 60's as well, was a much more formal deal, it was nothing in the 80's through the 20's. I now believe it was due to the screw worm, but I was too young to know.

There were strict quarantine areas and controls in Mexico for years (that lots of folks circumented I am sure). In the late 80's and through the 90's when I was spending a lot of time roaming around Northern Mex, and doing as much hunting and fishing as possible, I know ranchers would occasionally run into screw worm issues but they were very secretive about it as they had no faith in the MexGov to help them with it.

Where I lived in Central America it was around, and never went away completely, but it was not treated with the dire alarm that we are seeing in the U.S.. Why? I have no idea. I am not an ag man at all, so all of this is just purely observation from an unknowing point of view.

In the quarantined areas now, all transported warm-blooded animals are required to be inspected before they can leave the area. That includes pets (e.g. dogs).

I am not concerned at all about this, but this may be the place (as always) to settle this with my wife. She is concerned that we are taking our Pyrenees and Aussie to Concan next week to hang out on the river. We will be there 4 days. She is determined that the dogs have to be inspected before we can leave the county. I don't believe that to be the case in that they are not living in the county. (Unless they have a lesion or cut)

What say you TexAgs? If we have to get them inspected on the way back, we will do it, but if not, I contend that is so low risk that it is almost comical.


Concan is not in the infected zone- just the surveillance zone. No inspection is required unless leaving the infected zone.


Looks like my info was outdated. Uvalde County has a confirmed case and Concan does appear to be in the infected zone. Checkpoints are only for livestock, though. The order and what is in practice are not the same.


It's all good. We are giving them another dose of Ivermectin tomorrow. I am not concerned. Just want to follow the rules.
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Tecolote
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BrazosDog02 said:

Meh...he's not defending anyone. He told us exactly why he said what he did. On top of that, we all knew what he meant and it really isn't a big deal. JFC.

Posters could explain what a vaccine is in a concise, educational way. No need to call out a poster so they can show everyone how much they think they know.

Meh…this is hilarious. I've seen people on this board get more upset and correcting people when someone confuses a magazine from a clip, and don't use terms like cartridge, caliber, round, correctly.
bmfvet
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The canine dosing for ivermectin is not protective for screw worms. You'll want to have them on a ixoxolaner class drug. Credelio and Nexgaurd products have emergency use approval. Simparica and Bravecto products have studies showing efficacy as well.
‘99
Gunny456
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I knew exactly what you meant. No problem here my friend!
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Serious Lee
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bmfvet said:

The canine dosing for ivermectin is not protective for screw worms.

could you expound on that? Its my understanding, that the dosing for heartworm prevention is but a fraction of the dosage for treating sarcoptic mange. Both fall well short of the LD50.

Are you saying there is no safe Ivermectin dosage for effective treatment, or that the avermectin/milbemycin class of antihelminthics are totally ineffective at treating the screwworm?
bmfvet
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I have seen no evidence that the safe canine dosing levels of avermectin class drugs work for screw worms. The ivermectin dosing for a dog is minuscule compared to cattle dosing, and overdosing a dog with it can cause neurological problems that you don't want to mess with. Ivermectin also only will kill the L1 stage of screw worms, so it basically has to be in the animal prior to infection. In cattle, the ivermectin dose is only effective for a week, so it also needs more frequent dosing than Dectomax.

The only class of drugs recommended for dogs and cats are ixoxolaners. These are flea/tick preventatives that are either monthly or every 3 month pills. Bravecto Quantum is a 12 month injectable as well, but the only approved right now are credelio and nexguard.
‘99
FishrCoAg
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Yep.
TX_COWDOC
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BrazosDog02 said:

Meh...he's not defending anyone. He told us exactly why he said what he did. On top of that, we all knew what he meant and it really isn't a big deal. JFC.

Posters could explain what a vaccine is in a concise, educational way. No need to call out a poster so they can show everyone how much they think they know.



In this instance, this isn't about how much the participant DVMs 'think they know' to use your words. We actually have the training in pharmacology / parasitology which makes reading well intentioned guys use incorrect terminology and giving uninformed recommendations such as giving the Dectomax vaccine to a dog hard to ignore. Neither is correct though we all appreciate the spirit of the advice. Only person worked up here is you BrazosDog02. I'd take correction / advise from a West Texas practitioner with 4 decades of experience anytime. This is an important issue and will be for years to come. It's high time we use science based information and even the right terminology wherever possible.
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Serious Lee
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Quote:

It's high time we use science based information and even the right terminology wherever possible.

couldn't agree more. Misinformation was half the battle during the covid crisis. Id prefer to not relive that hysteria all because incorrect nomenclature is being passed around.
BrazosDog02
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My post isn't remotely about dogs but no matter. Your statement has spurred another question: Why doesn't texags have a VET tag? Doctors get it. I pay my vet a pile of money to come to my ranches and do his thing and make sure I'm getting current, experienced information for NWS and otherwise. Seems like having a way to know who is credentialed and practicing in the field right now would be handy, especially since squelching of misinformation is important.
79ElkHunter
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There will be a NWS meeting at the Harper Community Park at 6 pm Monday.
Tecolote
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BrazosDog02 said:

My post isn't remotely about dogs but no matter. Your statement has spurred another question: Why doesn't texags have a VET tag? Doctors get it. I pay my vet a pile of money to come to my ranches and do his thing and make sure I'm getting current, experienced information for NWS and otherwise. Seems like having a way to know who is credentialed and practicing in the field right now would be handy, especially since squelching of misinformation is important.

One of the beautiful things of the OB is the vets that will actually for free offer advice. The doctors have pulled back and many have had their tags removed because of attacks. Lawyers laugh and say "no free advice - you have to pay". Why do you want to ruin the kind vets for everyone else when you already say you pay your vet a pile of money to come to your ranches. Keep paying them and quit attacking the vets about Texags verifying "who is credentialed and practicing…" What about a retired vet? I'd be more happy to have their thoughts than a third year past vet school vet's opinion (not that they aren't knowledgeable).
96ags
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Perhaps they haven't updated the website lately, but USDA is still showing 32 cases and no new cases in the last few days.

That would be great news if accurate.

SanAntoneAg
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Yes, they are still updating daily. Let's hope it stays tamped down.
Burrus86
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96ags said:

Perhaps they haven't updated the website lately, but USDA is still showing 32 cases and no new cases in the last few days.

That would be great news if accurate.



Knock on wood, please.
txags92
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96ags said:

Perhaps they haven't updated the website lately, but USDA is still showing 32 cases and no new cases in the last few days.

That would be great news if accurate.



Probably more likely that the lab doing the confirmation testing was closed for the holiday weekend. But hopefully the new cases are slowing down.
Centerpole90
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I was thinking that they are also getting a lot more samples sent in now that we know it's here.
Whitetail
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4th of July weekend may have slowed things down too.
Serious Lee
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Anyone local hear of a case being found in Seguin?
Blanco Jimenez
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I'm down the road away but I heard that rumor too. It's not on the USDA site though.
shiftyandquick
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Should Mexican cattle be allowed to cross the border now that screwworm is already here? Some producers and feedlots depend on that and they are hurting. Being debated by this administration.

https://www.politico.com/news/2026/07/15/trump-screwworm-pressure-open-border-mexican-cattle-00995699
Gator92
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0950 7/16/26 Three fly dropper flights. About 6K feet into some rain.

6K feet and rain. Doesn't seem like a good idea...

Buck Compton
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shiftyandquick said:

Should Mexican cattle be allowed to cross the border now that screwworm is already here? Some producers and feedlots depend on that and they are hurting. Being debated by this administration.

https://www.politico.com/news/2026/07/15/trump-screwworm-pressure-open-border-mexican-cattle-00995699
This is actually an interesting debate. I won't pretend to know the answer, but it really comes down to two questions in my mind.

1 - is the concentration of cases in Mexico equal to or less than what is in the US?
2 - are Mexican procedures as stringent or more as US processes on identification/tracking/containment/fly dispersal/etc.?

So I would lean towards hard no, because I think the answer to both of those is no. If both were a yes, the argument could be made…
BQ_90
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the only really important question is does the US have enough manpower and facilities to do proper screening of incoming live animals and livestock. Again this isn't a virus, if animals are screened then its pretty hard to bring in infected livestock.

But I don't know what we have on the border to inspect every load of cattle that would cross the border.

If it's the job of USDA, i doubt they have enough people to handle this in addition to everything else they're having to do to address this issue
Buck Compton
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That's fair, to me that was covered by the second point. If Mexico was doing that and inspecting, then we wouldn't have to man it.

No way we have the manpower to do that.
BQ_90
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then that leads to another question, do we trust Mexico to the job needed on inspection. I think there is too much corruption in that country to think inspectors wouldn't be bought off.

So if we can't do the inspections i wouldn't want to open up the border
TAMUallen
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BQ_90 said:

then that leads to another question, do we trust Mexico to the job needed on inspection. I think there is too much corruption in that country to think inspectors wouldn't be bought off.

So if we can't do the inspections i wouldn't want to open up the border


No, we do not. If you want the job done right you do it yourself and even then, it's the government and they arent good at much of anything anyway.
RGV AG
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If I am not mistaken the USDA has their own employees that do the cattle inspections in Mex before the herd or lot, or whatever a grouping of for export cattle is called, is shipped to the US. I recall it being this way in the past, don't know about recently.

Kinda like the Avocado inspectors.
RGV AG
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Case reported in Starr County.
hillcountryag86
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Dr. KIpp is an expert on animal parasitology. Although she will focus on bison, her webinar is applicable for all species. She is an engaging speaker and will discuss:

  • The biology of NWS
  • Prevention and treatment and using dewormers and insecticides wisely
  • Management strategies
Free webinar is Thursday, July 23rd, 7:00 pm CST.

Webinar Link
cavjock88
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RGV AG said:

If I am not mistaken the USDA has their own employees that do the cattle inspections in Mex before the herd or lot, or whatever a grouping of for export cattle is called, is shipped to the US. I recall it being this way in the past, don't know about recently.

Kinda like the Avocado inspectors.


Yep. USDA Animal and Plant Health Inspection Service (APHIS). Livestock are inspected for disease in the export country then held for observation in border holding facilities. It use to be in the holding facilities cattle got tested for Brucellosis and TB then given a metal ear tag if negative and branded with a M on the tail head. Use to be a jaw brand. Screw worms and other things, I imagine, have the import of Mexican cattle halted for now, anyway.
 
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