Can anyone tell me where flies would build their nests.?
flies, like the house fly or “bozzer” lay their eggs on dead food or rotting matter, they can lay many eggs which in turn hatch into maggots. the maggots have a black “sack” of protein which they eat from inside their jackets and when they have done that they pupate and turn into Castors which after a period of a day or two depending on the lighting conditions and the warmth will hatch out into flies! You may not have a “nest” unless you have alot of dying matter around, but some plants and trees do attract flys as they trick the fly by giving off certain smells! Unfortunatly you may have to get the spray out!, wasps on the other hand are more likely to nest as they chew up your wood work and spit it out in your loft making a hive!
