Find a pressurized can of aerosol insecticide labeled for wasps and hornets at a home improvement store or garden center.
How to rid hornets in roof.
Non poisonous method to get rid of a wasps nest in a roof you can use a garbage bag inside a landing net and a long handled scraper to remove the nest from the roof where it is attached.
A pressure washer may damage your roof.
Use water or wasp killer if the nest is in the eaves and visible from the outside after you remove the soffit you may be able to spray the nest with water.
Check the label and make sure that it produces a solid stream that reaches at least 15 ft 4 6 m.
Keep spraying the nest until the water completely soaks and destroys it.
Make sure you use gloves long sleeved clothes and a protective mask.
Purchase an aerosol insecticide with a 15 to 20 ft 4 6 to 6 1 m range.
In the bottom section place your bait then flip.
During the time that nests are being built it is common to see hornets scraping away a thin layer of wood from a wooden fence an old log or the side of an unpainted wooden building.
Be sure to use the high velocity setting on the hose s nozzle.
Place the bag over the nest knock the nest off with the scraper and seal the bag.
Vinegar and sugar hornet trap 1 cup apple cider vinegar 1 cups of sugar 1 4 cup dish soap 2 liter plastic soda bottle.