i got these from the Mothering article. there's a link to the complete article in the sticky with the recipes....
Mold Killer 1: Tea Tree Treasure
2 teaspoons tea tree oil
2 cups water
Nothing natural works as well as this spray for mold and mildew. I've used it successfully on a moldy ceiling and shower curtain, and a musty bureau and rug. Tea tree oil is expensive, but a little goes a very long way. It also has a very strong odor, but that dissipates in a few days. Combine tea tree oil and water in a spray bottle, shake to blend, and apply to problem areas. Do not rinse. Leave in the bottle-it has a long shelf life.
Mold Killer 2: Citrus Seed Extract
20 drops citrus seed extract
2 cups water
The advantage of using citrus seed extract instead of tea tree oil for killing mold is that it is odorless. Combine the citrus seed extract and water in a spray bottle, shake to blend, and apply to problem areas. Do not rinse. Leave in bottle-it also has a long shelf life.
Mold Killer 3: Vinegar Spray
Straight vinegar reportedly kills 82 percent of mold. Pour some white distilled vinegar into a spray bottle and apply to moldy areas. Let set without rinsing, if you can put up with the smell, which will subside in a few hours.