06/18/2026
Since, we have gotten many questions about screwworms, we thought it might be worth posting this article from Veterinary Partner.
https://veterinarypartner.vin.com/default.aspx?pid=19239&id=13135652
Basically, unlike "normal" fly larvae (maggots) which eat dead tissue in wounds, the screwworm (blowfly maggot) eats healthy tissue in wounds. They will not create a wound, but will take advantage of any wound present (which could include a surgical incision. Since post-operative patients should not be outside unsupervised anyway, it should be easy to keep all flies away.)
Most of the common oral flea/tick control products will also kill New World Screwworms.
Please don't hesitate to call us if you see any wounds on your pets or have concerns.
Again, healthy pets with no wounds, should have no issues.