Most commonly they move from the ground to your attic for the winter when it gets cold.
Flies bees trappped attic.
Thus the common name they have of attic flies.
Unlike other pests that can infest an attic most bees are not known to eat wood or cause other structural damage to the home.
You can use a duster for reaching the entry hole of the bee hive easily.
And the easiest entrance is usually through external gaps leading to your attic.
It is one of the best methods that you can use so you can know how to kill bees in attic easily and quickly.
By instinct they seek shelter away from the elements such as in the fall when it gets cold.
Bug electrocuters can be left in attics as long as they are not placed close enough to walls or insulation to cause a fire.
Naturally your house is warmer.
Make sure that you know the entering and exiting part of their bee hives.
Fly paper can be strung up around windows and doors to capture flies as they come inside.
House flies are gray in color while most cluster flies appear black.
And hence a fly paper initially attracts the flies and then traps them when they land upon it.
By knowing these parts you are able to stop the growth of any bees on your attic completely.
Fly papers or fly ribbons are the cheap and best things to trap flies.
Additionally cluster flies have golden hairs growing on their body whereas house flies do not.
A fly paper is coated with a sweet fragrant to which flies get attracted.
The paper is extremely sticky and sometimes also has a layer of poisonous substance above it.