This screwworm shit is not funny! Another rant from an angry Texan!!!!

[Kali]

54. there are different species of botflies and modes of infestation

some lay eggs near the entrances to rodent burrows (how pets sometimes pick them up), other do lay on the host. the ones I am most familiar with (that cause "warbles" in cattle), lay eggs on hair of lower legs, the larvae burrow into skin and follow a (usually) specific path through the body and end up under the skin of the back. they make an air hole and eventually pop out and pupate in the soil. if you use insecticide on them at the wrong time they can cause more damage dying in the wrong place than just letting them cycle out.