Don't kill them, if they are bees they are important pollinator animals and they make honey. I know the roof is not a place where they should be but rather than killing them call your local bee keeper and he will come and remove them alive for you.
- If a bee enters your home, it is a sign that you will soon have a visitor. If you kill the bee you will either have bad luck or the visitor will be unpleasant. - If a swarm of bees settles on a roof it is an omen that the house will burn down.
most insectiside will but before you kill them remember bees are good for your garden. Why would you want to kill bees?
no carbon monoxide will not kill bees. It does slow them down though.
will cold weather kill carpenter bees
Yes, they are carnivore's, bees, mosquito's..
yes
No, honey bees typically make hives above ground in structures like trees, caves, or man-made beehives. Ground-dwelling bees like mining bees or sweat bees may create nests underground, but honey bees do not.
They can kill you!
No
gas
You shouldn't kill honey bees at any time of the year. If you have a problem with honey bees, firstly contact a beekeeper.
Bees kill their queen because their queen might be to old or the queen might have a diesease