Mistake #1: You Let the Dog Drink Water from the Tree Stand
That tree stand is probably filled with water that’s far from fresh. Tree preservative, often made with fertilizer and fungicides, can cause vomiting or upset stomach in pets; bacteria can also multiply in the standing water. Snugly wrap a tree skirt around the trunk to make the water harder for your pet to get to.
Remember to avoid feeding your cat or dog these common holiday treats.