Vebi Clean bird droppings thoroughly from the area to be treated. Spray abundantly from a distance of 20-30 cm, being careful of possible air currents that could disperse the product. In case of heavy or persistent rain, or if the surface is washed with water and/or detergents, reapplication will be necessary. Regular use is recommended in the season before nesting to help prevent nest formation. When used correctly, the product is harmless for humans, animals and plants Fly Repellent