Ive heard of witchcraft like this, and its my impression its latin or European in origin.
Ive heard of massive overnight insect takeover of a building like fleas, bedbugs, roaches, flies, etc.
Then Ive lived in a couple of rodent infested environments, as well as among fleas and roaches, thank god no bed bugs.
But then after this pest outbreak in my apartment, I was paranoidly searching for something to metaphysically explain out and came across a bragging hag who had put a spell out to curse someone, but cursed the entire grounds. So, when it occurred in my area, it made me wonder. Some people gave me the evil eye or distrust without anything other than being white.
I also know a lot of people had practices. There were at least three instances of suicid and sighting of shadow people, and behavior taking a 180 when I was evoking every night.
Then there is gang graffiti on the grounds which has perverted occult meanings, actual darkness there imo, actual evil in that, imo. Graffitti associated with robbery, poisoning and murdering people (this is usually a trio of things gangs do).
So, I would research any entity that has anything to do with the appearance or symptoms.
Any new items acquired secondhand that might be cursed?
Haunted dwelling?
New folks nearby?
Then physically clan the shit out of the place, and caulk every possible place where insects could get in, let alone rodents, if you’ve forced air and heat, get foam spray, steel wool, spray some foam around pipe entry areas and put some of the steel wool over top and spray with foam so that when they bite on the SW they’ll leave.
Starve them out, usual pest control.
Now, meditate on hawks and possums. Perhaps ask yourself if these are your power animals, and research the power of these animals. Meditate on these power animals of yours coming back to chat with Rat-King.
In general, I would do a cleaning, exorcism by reciting psalm 91 over every door, window, wall, ceiling of floor and sealing each area spoken with an equal arm cross. Salt the perimeter, leave no entry point.
Or a rose cross ritual, purification fo space ceremonial buts by saltwater and incense for purification through water and fire, etc.
Then do a heavy often banishing ritual, repetitively doing until the issues lessen and the energy dies down indicating a withdrawal or retreat.
Then chat with your HGA or HGD if you can, or do energy raising and such.
My opinion.