At normal application rates, allethrin is slightly toxic to bees.
2.
One, an incense coil called Eaton's, relies on a chemical called " allethrin ."
3.
:: I put the question to Google ( sorry, no special knowledge ) and got which sounds plausible-they say pyrethrins, resmethrin, and allethrin work on them but only if you more or less spray them directly, which is near pointless, so use housekeeping measures.