I don't think that's true. Supply-chain issues caused by the COVID-19 pandemic and response were probably a big factor - or so I've read, I'm not an expert. In any case, by 2024 (pre-DOGE), new-world screw-worm fly had breached the Panama boundary where we can feasibly keep it contained with a fixed on-going effort. I remember because some time during the pandemic I learned about the thing from someone linking a much older article in the Atlantic[1].

0: https://web.archive.org/web/20240218010527/https://www.fas.u...

1: https://www.theatlantic.com/science/archive/2020/05/flesh-ea...