You should exercise caution if using Messina’s Animal Stopper on outdoor canvas furniture. While not explicitly intended for furniture, the manufacturer advises that when applying the spray to fabric, wood, or other manufactured materials, you **must always perform a patch test** on a small, inconspicuous area to check for staining or discoloration. Because the formula contains plant-based oils, there is a risk of leaving a residue. Always test, allow it to dry, and inspect before proceeding.