Tackle mildew spots with a spritz of white distilled vinegar. Try a squirt of diluted vinegar followed by a brisk wipe. If that doesn’t work, use full strength vinegar on the mildew, wipe and rinse.
Mix ammonia, vinegar, baking soda and one gallon of water in a pail or dishpan for stubborn stains.
Dip a cloth in the solution and wipe over furniture. Rinse thoroughly and pat dry with a dry terry towel.
Mix 2 tablespoons of ammonia in 1 gallon of water to clean mildewed wicker furniture. Scrub with an old toothbrush to get between the weave of the chair.