Our Spider Repellent is a good general concentrate for keeping away all creepy-crawly pests especially spiders. It is the genesis behind our Porch Spray. You can spray boats and boat docks with this and protect your belongings from lake-house spiders that get their webs in and on everything! Most pesticides are not even legal to spray over or around a body of water! Ours is and it actually works!!! Works great on land structures as well! Mix concentrate at a rate of 10 oz per gallon of water for effective and safe results. Product is made in the USA.