Although they aren't as effective as permethrin, pest sprays will eventually kill maggots. ... In general, bug sprays that act as fumigators, wasp, and hornet killers, as well as ant and roach killers, will work.

What kills maggots instantly?

Boiling water. It's free, it's quick, it's effective, and it kills maggots in an instant.

What to spray on maggots?

Permethrin spray is one of the most effective ways to kill maggots. It is a synthetic chemical used as an insecticide and can get rid of a maggot infestation. It is a broad label concentrate which can be used inside and around homes. It is easy to use on animals, furniture, carpets, pantries and cabinets.