A pressure washer may damage your roof.
How to rid hornets in roof.
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.
Purchase an aerosol insecticide with a 15 to 20 ft 4 6 to 6 1 m range.
Place the bag over the nest knock the nest off with the scraper and seal the bag.
Find a pressurized can of aerosol insecticide labeled for wasps and hornets at a home improvement store or garden center.
Be sure to use the high velocity setting on the hose s nozzle.
Vinegar and sugar hornet trap 1 cup apple cider vinegar 1 cups of sugar 1 4 cup dish soap 2 liter plastic soda bottle.
The first step in hornet control is to identify the pest.
Keep spraying the nest until the water completely soaks and destroys it.
Make sure you use gloves long sleeved clothes and a protective mask.
Make a plastic bottle trap using a sharp pair of scissors or a knife to cut a two liter plastic soda bottle in two just above the top of the label.
Check the label and make sure that it produces a solid stream that reaches at least 15 ft 4 6 m.
In the bottom section place your bait then flip.