Outdoors
Sponsored by

Screwworm is here...

57,803 Views | 406 Replies | Last: 8 hrs ago by Deerdude
Tecolote
How long do you want to ignore this user?
AG
FishrCoAg said:

Tecolote said:

FishrCoAg said:

RanchAg said:

It will be interesting to see how things shake out. I'm not sure that ivermectin is going to have the impact people think it will. It is definitely a tool that can be used, but USDA has been feeding it for over a decade to combat the fever tick and we still have issues with that pest.

It is very difficult to control consumption in wildlife, especially with the rain we received this year and there being so many other choices to browse. Factor in the social aspects of animals and I think you will see some over consume and others not consume enough.

Finally, what was proposed this afternoon was a prescriptive approach, not mass feeding of medicated corn/feed across the state. Ivomec is approved in livestock as a preventative but not a cure once NWS is found, and that is as an injectable. They are using dectomax as a preventative and treatment. Their models will need to be accurate for any medicated feed to have a positive impact.


I read a report from Costa Rica, where they have been dealing with it for years, saying that NWS was pretty resistant to ivermectin now. Can't vouch for the accuracy but it is concerning.

Just left a meeting with state vet (not Texas). This was stated by the vet as being thought to be the case and they are concerned with people thinking ivermectin is the cure all and using it inappropriately, thus enhancing even more the resistance by NWS. Medicated feeds were very worrisome to the vet as too many variables.


Surely no one would use ivermectin inappropriately!

Never in a million years!

Edit: and in proper dosages. You know like when a guy has 15 head and the 7-way or 8-way vaccines are in 10 dose bottles, they buy just one bottle and will "make it stretch!"
TX_COWDOC
How long do you want to ignore this user?
AG
GottaRide said:

Pretty soon I expect that anti-parasite treatments will require vet prescriptions, just like they did with antibiotics.


This discussion is a good reason for better oversight of drugs in food animals is it not? Biology, pharmacology, etc. aren't well understood by the desk help at tractor supply or your local feed store [tecolote not withstanding] Yes, avermectin resistance is well documented in parasites. Low grade (sub therapeutic) long term dosing is the greatest enemy of efficacy of drugs in this class….and antibiotics.


www.southpawprecision.com
Type 07 FFL / Class 2 SOT
Nightforce Optics Dealer
AGM Night Vision Dealer
txags92
How long do you want to ignore this user?
AG
txags92 said:

SanAntoneAg said:

TPWD reports they have investigated 1,668 potential wildlife cases, including WTD, skunks, vultures, etc. Of these, 19 were highly suspect. To date, no confirmed wildlife cases. They are stressing observation, especially through trail cameras during summer months, and reporting.

Mine was one of those. After watching more carefully for a week or so and watching a lot of videos of the deer, I am pretty sure the black spot on its shoulder is a Cutaneous Fibroma. It is definitely an outward growth and not a wound cavity that is open or scabbed over flat.

I knew I should have kept my mouth shut. Deer just showed up a few mins ago and the dark black spot now has a light colored area in the center that I can't tell whether it is an open wound or not.



Tecolote
How long do you want to ignore this user?
AG
txags92 said:

txags92 said:

SanAntoneAg said:

TPWD reports they have investigated 1,668 potential wildlife cases, including WTD, skunks, vultures, etc. Of these, 19 were highly suspect. To date, no confirmed wildlife cases. They are stressing observation, especially through trail cameras during summer months, and reporting.

Mine was one of those. After watching more carefully for a week or so and watching a lot of videos of the deer, I am pretty sure the black spot on its shoulder is a Cutaneous Fibroma. It is definitely an outward growth and not a wound cavity that is open or scabbed over flat.

I knew I should have kept my mouth shut. Deer just showed up a few mins ago and the dark black spot now has a light colored area in the center that I can't tell whether it is an open wound or not.





Not an appropriately response.
txags92
How long do you want to ignore this user?
AG
Tecolote said:

txags92 said:

txags92 said:

SanAntoneAg said:

TPWD reports they have investigated 1,668 potential wildlife cases, including WTD, skunks, vultures, etc. Of these, 19 were highly suspect. To date, no confirmed wildlife cases. They are stressing observation, especially through trail cameras during summer months, and reporting.

Mine was one of those. After watching more carefully for a week or so and watching a lot of videos of the deer, I am pretty sure the black spot on its shoulder is a Cutaneous Fibroma. It is definitely an outward growth and not a wound cavity that is open or scabbed over flat.

I knew I should have kept my mouth shut. Deer just showed up a few mins ago and the dark black spot now has a light colored area in the center that I can't tell whether it is an open wound or not.





Not an appropriately response.

Sorry, you misunderstood me. I meant I jinxed myself by saying something positive about it. First thing I did when I got the new pictures was to text them to the TPWD biologist.
Tecolote
How long do you want to ignore this user?
AG
txags92 said:

Tecolote said:

txags92 said:

txags92 said:

SanAntoneAg said:

TPWD reports they have investigated 1,668 potential wildlife cases, including WTD, skunks, vultures, etc. Of these, 19 were highly suspect. To date, no confirmed wildlife cases. They are stressing observation, especially through trail cameras during summer months, and reporting.

Mine was one of those. After watching more carefully for a week or so and watching a lot of videos of the deer, I am pretty sure the black spot on its shoulder is a Cutaneous Fibroma. It is definitely an outward growth and not a wound cavity that is open or scabbed over flat.

I knew I should have kept my mouth shut. Deer just showed up a few mins ago and the dark black spot now has a light colored area in the center that I can't tell whether it is an open wound or not.





Not an appropriately response.

Sorry, you misunderstood me. I meant I jinxed myself by saying something positive about it. First thing I did when I got the new pictures was to text them to the TPWD biologist.

Sorry, I misunderstood. We need everyone to be proactive like you have been!
txags92
How long do you want to ignore this user?
AG
Tecolote said:

txags92 said:

Tecolote said:

txags92 said:

txags92 said:

SanAntoneAg said:

TPWD reports they have investigated 1,668 potential wildlife cases, including WTD, skunks, vultures, etc. Of these, 19 were highly suspect. To date, no confirmed wildlife cases. They are stressing observation, especially through trail cameras during summer months, and reporting.

Mine was one of those. After watching more carefully for a week or so and watching a lot of videos of the deer, I am pretty sure the black spot on its shoulder is a Cutaneous Fibroma. It is definitely an outward growth and not a wound cavity that is open or scabbed over flat.

I knew I should have kept my mouth shut. Deer just showed up a few mins ago and the dark black spot now has a light colored area in the center that I can't tell whether it is an open wound or not.





Not an appropriately response.

Sorry, you misunderstood me. I meant I jinxed myself by saying something positive about it. First thing I did when I got the new pictures was to text them to the TPWD biologist.

Sorry, I misunderstood. We need everyone to be proactive like you have been!

No problem. The way I see it, these things are going to be everywhere in Texas before all is said and done. All staying quiet will get you is last in line for sterile fly releases in your area. If you find it early and get it reported, you have a much better chance of being on the front end of the sterile fly releases.
SanAntoneAg
How long do you want to ignore this user?
AG
txags92 said:

txags92 said:

SanAntoneAg said:

TPWD reports they have investigated 1,668 potential wildlife cases, including WTD, skunks, vultures, etc. Of these, 19 were highly suspect. To date, no confirmed wildlife cases. They are stressing observation, especially through trail cameras during summer months, and reporting.

Mine was one of those. After watching more carefully for a week or so and watching a lot of videos of the deer, I am pretty sure the black spot on its shoulder is a Cutaneous Fibroma. It is definitely an outward growth and not a wound cavity that is open or scabbed over flat.

I knew I should have kept my mouth shut. Deer just showed up a few mins ago and the dark black spot now has a light colored area in the center that I can't tell whether it is an open wound or not.






Remind us when you first noticed it?
txags92
How long do you want to ignore this user?
AG
SanAntoneAg said:

txags92 said:

txags92 said:

SanAntoneAg said:

TPWD reports they have investigated 1,668 potential wildlife cases, including WTD, skunks, vultures, etc. Of these, 19 were highly suspect. To date, no confirmed wildlife cases. They are stressing observation, especially through trail cameras during summer months, and reporting.

Mine was one of those. After watching more carefully for a week or so and watching a lot of videos of the deer, I am pretty sure the black spot on its shoulder is a Cutaneous Fibroma. It is definitely an outward growth and not a wound cavity that is open or scabbed over flat.

I knew I should have kept my mouth shut. Deer just showed up a few mins ago and the dark black spot now has a light colored area in the center that I can't tell whether it is an open wound or not.






Remind us when you first noticed it?

It has been there at least a month. But it was smaller a month ago than it is now. The pics below are from May 10th.



Tecolote
How long do you want to ignore this user?
AG
txags92 said:

SanAntoneAg said:

txags92 said:

txags92 said:

SanAntoneAg said:

TPWD reports they have investigated 1,668 potential wildlife cases, including WTD, skunks, vultures, etc. Of these, 19 were highly suspect. To date, no confirmed wildlife cases. They are stressing observation, especially through trail cameras during summer months, and reporting.

Mine was one of those. After watching more carefully for a week or so and watching a lot of videos of the deer, I am pretty sure the black spot on its shoulder is a Cutaneous Fibroma. It is definitely an outward growth and not a wound cavity that is open or scabbed over flat.

I knew I should have kept my mouth shut. Deer just showed up a few mins ago and the dark black spot now has a light colored area in the center that I can't tell whether it is an open wound or not.






Remind us when you first noticed it?

It has been there at least a month. But it was smaller a month ago than it is now. The pics below are from May 10th.





Questions for the Veterinarians on here - as the screw worm feeds on live flesh how fast is the progression of the infected areas. I would have expected a much larger growth rate and a much sicker deer than is shown in the pictures a month apart.
FishrCoAg
How long do you want to ignore this user?
AG
Tecolote said:

txags92 said:

SanAntoneAg said:

txags92 said:

txags92 said:

SanAntoneAg said:

TPWD reports they have investigated 1,668 potential wildlife cases, including WTD, skunks, vultures, etc. Of these, 19 were highly suspect. To date, no confirmed wildlife cases. They are stressing observation, especially through trail cameras during summer months, and reporting.

Mine was one of those. After watching more carefully for a week or so and watching a lot of videos of the deer, I am pretty sure the black spot on its shoulder is a Cutaneous Fibroma. It is definitely an outward growth and not a wound cavity that is open or scabbed over flat.

I knew I should have kept my mouth shut. Deer just showed up a few mins ago and the dark black spot now has a light colored area in the center that I can't tell whether it is an open wound or not.






Remind us when you first noticed it?

It has been there at least a month. But it was smaller a month ago than it is now. The pics below are from May 10th.





Questions for the Veterinarians on here - as the screw worm feeds on live flesh how fast is the progression of the infected areas. I would have expected a much larger growth rate and a much sicker deer than is shown in the pictures a month apart.


They usually do progress much faster. Can't be 100% sure it's not NSW, but I suspect there's a foreign body or bony sequestrum from a previous injury, or possibly a tumor. That said, those would all be prime candidates to attract NSW if they are in the area.
Tecolote
How long do you want to ignore this user?
AG
Thanks!
SanAntoneAg
How long do you want to ignore this user?
AG
Guessing here but I would have figured NWS would have created a larger wound over 40 days.

To add, eggs to adult is about three weeks. Theoretically, if that is a NWS injury on the deer, there are many more flies in the area that would be repeating the cycle on the wound.
txags92
How long do you want to ignore this user?
AG
SanAntoneAg said:

Guessing here but I would have figured NWS would have created a larger wound over 40 days.

To add, eggs to adult is about three weeks. Theoretically, if that is a NWS injury on the deer, there are many more flies in the area that would be repeating the cycle on the wound.

Yeah, my thought on this one is that it was a cutaneous fibroma up until now. It has definitely developed into an external mass, not an open wound over the last month or so. What concerned me yesterday enough to text a new set of pics to the biologist was the appearance of the light color in the center of the mass. I can't tell if that is a new wound opening in the middle of the fibroma or if it was an abscess all along that has opened up. Either one would be a prime site for NWS to infest.
Jason_Roofer
How long do you want to ignore this user?
We are monitoring all of our cattle manually which is a huge time suck with the land size between two ranches and heavy brush. I see some people talking about dectomax as a 'prevention'. What level of concern is there for creating a resistant NWS by doing this when it's not necessary? Is there any risk of this? It feels lazy and irresponsible, but I see enough people a hell of a lot smarter than me talking about it and doing it, so wanted to ask.
RanchAg
How long do you want to ignore this user?
AG
Larvae feed on the host tissue for 5-7 days before dropping off and burrowing into soil.
Deerdude
How long do you want to ignore this user?
My cattle are in the Tick quarantine area along Rio Grande and on the 28 day Dectomax injection program for ticks and get NWS immunity as well. I've heard nothing mentioned about tick immunity.
RanchAg
How long do you want to ignore this user?
AG
I'm not a vet, but my understanding is dectomax kills the larvae after the eggs are laid in the wound/opening, preventing them from completing their life cycle. It doesn't kill the fly when it lands to lay its eggs.

Even in confirmed cases when it is used for treatment, as many of the larvae are removed as possible and then treated to catch any larvae that were missed or too deep.

I don't think there is much concern with NWS resistance, it is creating resistance in all the other parasites, worms, flukes, etc. from continual use.
LeviScherer
How long do you want to ignore this user?
I'm glad you are bringing this up…there is not enough being said about resistance, even before NWS. I have had a concern with this for over 5 years. They have/are dealing with resistance in Africa, and it's not long before we are dealing with it here. I understand the need for Dectomax in treating an animal that is infected, but there is nothing worse than treating an animal that is not infected. It's the same as under dosing an animal. It's proven that it builds up resistance. Widespread use of Dectomax as a prophylactic to NWS is very worrisome to me.
I run a breeding operation of nearly 1k animals (African Hoofstock) and treat animals individually via dart gun as needed. I do this based off of testing fecal samples twice monthly. I have found that this practice works the best.
It's a terrifying thought that our livestock become resistant to dewormer or antibiotics. I hope this helps answer your questions.
Deerdude
How long do you want to ignore this user?
Tin foil hat fitting kinda tight today, but the majority of cases found are in the smuggling corridor near the border. Are they being brought in intentionally?
Tecolote
How long do you want to ignore this user?
AG
RanchAg said:

I'm not a vet, but my understanding is dectomax kills the larvae after the eggs are laid in the wound/opening, preventing them from completing their life cycle. It doesn't kill the fly when it lands to lay its eggs.

Even in confirmed cases when it is used for treatment, as many of the larvae are removed as possible and then treated to catch any larvae that were missed or too deep.

I don't think there is much concern with NWS resistance, it is creating resistance in all the other parasites, worms, flukes, etc. from continual use.

Also not a vet. Dectomax is one of the treatments for active infections opposed to just prevention. Not only is the using of Dectomax in animals not infected an issue for resistance but it is an issue for decreasing availability of the medication for those with active infections.

Good info on the 5-7 day stay in the animal and then evacuating. That pretty much confirms the guy with the dear and 40 day difference between photos is not an NWS case.

Autocorrect had me fixing almost a dozen words. It's definitely a Chinese water torture device now!

RanchAg
How long do you want to ignore this user?
AG
Correct on Dectomax being a preventative and treatment.

We are checking a couple times per week and sticking to our normal schedule. We use Cydectin and Ivomec injectable every year. One in spring and one in early fall. If a county next to us becomes labeled as infested or under surveillance, we will modify our schedule. Until then, I'm monitoring and sticking with our normal routine.
Tecolote
How long do you want to ignore this user?
AG
RanchAg said:

Correct on Dectomax being a preventative and treatment.

We are checking a couple times per week and sticking to our normal schedule. We use Cydectin and Ivomec injectable every year. One in spring and one in early fall. If a county next to us becomes labeled as infested or under surveillance, we will modify our schedule. Until then, I'm monitoring and sticking with our normal routine.

txags92
How long do you want to ignore this user?
AG
Tecolote said:

RanchAg said:

I'm not a vet, but my understanding is dectomax kills the larvae after the eggs are laid in the wound/opening, preventing them from completing their life cycle. It doesn't kill the fly when it lands to lay its eggs.

Even in confirmed cases when it is used for treatment, as many of the larvae are removed as possible and then treated to catch any larvae that were missed or too deep.

I don't think there is much concern with NWS resistance, it is creating resistance in all the other parasites, worms, flukes, etc. from continual use.

Also not a vet. Dectomax is one of the treatments for active infections opposed to just prevention. Not only is the using of Dectomax in animals not infected an issue for resistance but it is an issue for decreasing availability of the medication for those with active infections.

Good info on the 5-7 day stay in the animal and then evacuating. That pretty much confirms the guy with the dear and 40 day difference between photos is not an NWS case.

Autocorrect had me fixing almost a dozen words. It's definitely a Chinese water torture device now!



Just to be clear, the biologist from TPWD and I had both already concluded that the black scab/wart/whatever on the deer was unlikely to be NWS over a week ago. I have been watching it from day to day via cam and the reason I posted it again yesterday was because the center of the scab/wart/whatever went from black to light. If that is a sore opening or pus coming out in the middle of whatever the black mass is, that would be something new that would be a potential concern for NWS. That light area in the middle has been there for 1-2 days, not 40.
Centerpole90
How long do you want to ignore this user?
AG
Color me SHOCKED the RGV hasn't popped yet. I had us as patient zero but looks like Laredo crossing wins the cookie.
SanAntoneAg
How long do you want to ignore this user?
AG
Centerpole90 said:

Color me SHOCKED the RGV hasn't popped yet. I had us as patient zero but looks like Laredo crossing wins the cookie.


RGV has been getting sterile fly drops for a while. Which likely explains why there are no cases there.

Everyone expected that flies would arrive in Texas last summer. Essentially, we bought ourselves a year.
txags92
How long do you want to ignore this user?
AG
Deerdude said:

Tin foil hat fitting kinda tight today, but the majority of cases found are in the smuggling corridor near the border. Are they being brought in intentionally?

There is actually a well known late spring weather pattern that brings the sub tropical jet out of mexico and towards the winter garden area sw of San Antonio. Bat researchers have found that the bats in many of the central texas colonies have timed their maternity cycles around being able to feed on the steady supply or corn earworm/cotton bollworm moths being carried northeastward out of mexico on it. Bats from Bracken Cave were tracked flying 100 miles SW at low elevations before going up as high as 10,000 feet to feed on moths while being carried back towards Bracken by the jet stream. Wouldn't surprise me at all if the same weather pattern brought our first batch of NWS north of the border via the same mechanism.
Centerpole90
How long do you want to ignore this user?
AG
I can here this morning to update my post. I was with a friend last night who is the chair of TSCRA's Parasite SubComm and he told me drops started here in January if not earlier. I wasn't aware if that, but appreciative.
Centerpole90
How long do you want to ignore this user?
AG
Blue parachute for Staph. Good work.
AnScAggie
How long do you want to ignore this user?
AG
Three more cases popped over the weekend to a total of 15. Edwards county and that area seems like it might be a hot spot. Surprised no one has posted this yet.
Dirty-8-thirty Ag
How long do you want to ignore this user?
AG
Crockett County had its first case this weekend as well. Found in a lamb.
TX_COWDOC
How long do you want to ignore this user?
AG

www.southpawprecision.com
Type 07 FFL / Class 2 SOT
Nightforce Optics Dealer
AGM Night Vision Dealer
Burrus86
How long do you want to ignore this user?
AG
Clay County Rancher here. Thank y'all for the updates. I check this thread several times each day, and I find it my best source of information.
shiftyandquick
How long do you want to ignore this user?
Deerdude
How long do you want to ignore this user?
Im not understanding this. Family place is in Webb county which is supposedly quarantined due to cases in adjacent LaSalle and Dimmit counties. So why are other counties surrounding the live case counties not quarantined?
My cattle are in Zapata county and safe for now. A tick rider told me we are in the safest place in the state. Many of us are in Dectomax injection program and they are apparently carpet bombing the border but then that takes me back to why Webb is quarantining when the other adjacent states are not quarantined.
 
×
subscribe Verify your student status
See Subscription Benefits
Trial only available to users who have never subscribed or participated in a previous trial.