Live data from Hacker News

Mexico to US livestock trade halted due to screwworm spread

usda.gov

41–50 of 219 posts

Re: Mexico to US livestock trade halted due to screwworm spread

#41
post #4
post #2

[flagged]

(Implied) invalid generalization, or confirmation bias. This is a good reason to not eat that particular meat. In general, however, meat is an S-tier source of nutrition, vitamins, and minerals.

How can something which is horribly inefficient for environment (water use, land use, greenhouse emissions from fertilizer) possibly be S tier?

Re: Mexico to US livestock trade halted due to screwworm spread

#42
> This is maintained with stringent animal movement controls, surveillance, trapping, and following the proven science to push the NWS barrier south in phases as quickly as possible.

Why add "proven" before science?

Nobody expects the USDA to handle such problems with "unproven science", for whatever it could be.

For decades they've made the sterilized flies by exposing them to gamma radiation that damages their reproductive system and it's been effective.

Am I getting doubtful of every announcement from this administration or are they trying to tackle conspiracy theories from the start?

Re: Mexico to US livestock trade halted due to screwworm spread

#43

Earlier quoted context omitted.

DOGE. It was ran by USAID.

It was failing long before this. The border used to be down by Panama.

The first sign of spread past panama was seen in Nov 2024. Parasites can spread fast and the US/Mexico needed to react fast to the fact that it spread past panama.

In a critical time when monitoring and action were desperately needed, we eliminated the agency that'd do that.

Re: Mexico to US livestock trade halted due to screwworm spread

#46

A story from 2020 about how effective the US funded anti-screwworm program used to be. https://www.theatlantic.com/science/archive/2020/05/flesh-ea... Archive link: https://archive.ph/3sD9d

Why is it "used to be"? I've heard about the program before and thought it was incredible. What happened to it? Edit: Brief research tells me the screwworms broke though to Mexico in November 2024 after cases started increasing north of the Darian Gap throughout 2023 ( https://www.aphis.usda.gov/news/program-update/new-world-scr... ). It does seem like the funding now is happening through USDA rather than USAID ( htt…

Funding was recently cut but this infestation has been building for years. The key failure that caused this current outbreak was during COVID. The lockdowns shut down both the release flights by the US and the mosquito breeding facilities in Latina America, grinding the whole pest control program to a halt.

Re: Mexico to US livestock trade halted due to screwworm spread

#47

USAID was in charge of the program which monitored screwworm spread in central and south america. The way you combat screwworm is by releasing sterile male flies in screwworm outbreak areas.

Do you have a source? Because this appears to be false. I can't find anything indicating it was funded by USAID.

Everything I'm reading says it has been funded by USDA, and in fact funding has been significantly increased during 2025.

Re: Mexico to US livestock trade halted due to screwworm spread

#48

USAID was in charge of the program which monitored screwworm spread in central and south america. The way you combat screwworm is by releasing sterile male flies in screwworm outbreak areas.

Do you have a source? Because this appears to be false. I can't find anything indicating it was funded by USAID. Everything I'm reading says it has been funded by USDA, and in fact funding has been significantly increased during 2025.

https://www.agri-pulse.com/articles/22636-bird-flu-screwworm...

USDA manages the production of the sterile flies. USAID was a major funding source for the UN Food and Agriculture Organization which did the monitoring.

Re: Mexico to US livestock trade halted due to screwworm spread

#50

Some folks are posting about the regular flights over Panama, and I’ve seen talk about ending screwworm with a “gene drive”, but I also feel that it doesn’t feel necessary. But a third option I don’t see talked about a lot: finish the job. We could drop sterile flies all over the USA and Mexico all the way into panama with 1950s tech. We have drones now, surely some inexpensive paper planes shoved out of the back of…

There is no finishing the job. Screwworm flies have tons of reservoirs in the jungles of Central America that aren’t practical to eliminate for logistical and ecological reasons. We can only control the population in agriculturally important areas by constantly releasing the sterile male flies every year. Whenever we stop the releases, the flies bounce back in a few years.
Post reply on HN