Thyme can help with a mite infestation, and a spray is the best way to apply it. Thyme mite spray 1 litre water 25ml thyme essential oil Mix and spray onto coop surfaces and into the joints in framing. If possible, remove perches, so you can get spray into gaps where they butt up or into walls. Don’t use a high-pressure sprayer. You want a low-pressure one that will spray larger ‘coarse’ droplets, vs a fine mist or one that blasts a jet of water.
A thyme essential oil spray can help with a mite infestation