It's not like it was planned in response to the first report earlier this week.
The push is for it to open sooner, but that may not be feasible.
Do keep in mind that it's northward migration is far, far in excess of anything the pest fly could pull off on its own. It was transported. Quickly. From south to north. Between early '22 to '25. (Obviously with the fentanyl, I guess. /snark off, since that's apparently required these days.)
Don't know what the countries between the Darien Gap and Texas did to slow it down. Perhaps nothing in some cases, dunno. Mexico's been as slow as we have been to get up and running.
https://blasinayasociados.com/mexico-controla-bichera-en-el-norte-y-busca-nuevos-mercados-para-su-carne/ claims that the area just SE of the sitings in Texas was clear of the "gusano barrenador" aka GBG and that the 'north' of Mexico was clean last fall.
Then again, it also talks about US/Mexico cooperation last summer/fall and an embargo on Mexican cattle imports (which was echoed in recent reporting on the high price of beef), even though I'm assured that there was no cooperation and the border was open for imports. So somebody's reporting malinformation.
https://www.prensamexicana.com.mx/notas-principales/gusano-barrenador-del-ganado-en-la-mitad-del-pais/ seems to give the north a pretty clean bill of health as of 1/26. So something other than little fly wings moved the critter north.
On the other hand, https://www.prensa-latina.cu/2026/06/06/mexico-impulsa-estrategia-intensiva-contra-gusano-barrenador/ talks about a sterile fly production facility that's just coming on line. The impression I get is that it migrated north faster than expected--Mexico was swamped before their facility was functional, and the US is the same. Then again it took a couple of years to get from the Gap to the Mexican border.
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