the sweater is 100% acrylic and it was a spruce tree
How do we remove Tree Balsam from a sweater?
To get tree sap off clothing try Goof Off (or a product similar to that), or WD40. Spray the product on the stain, rub in, then launder as usual. For a homemade treatment, try using mayonnaise in a similar fashion...Good Luck!=)