Star brite spider away chases spiders and pests away without killing them. Spiders will not return to their nests and eggs once you apply spider away. Spider away is safe for use on most surfaces (when used as directed), including metal, vinyl, wood and glass. Use during the warm months when spiders tend to nest, grow and populate. Area to be treated should be clean and dry. Shake spider away well and spray all the exposed surfaces, making sure to get into cracks and seams. Allow spider away to air dry. Inspect area periodically to make sure spiders have not returned. Reapply as necessary. Do not spray on plants and foliage. Do not use on food and feed commodities.