It sure is cheap!
HERE IS THE ARTICLE, click 'view all' and scroll all the way down to the aspirin paragraph, here is most of it:
Aspirin is the remedy for fungal headaches
Black spot, powdery mildew, and rust are a terrible trio of fungi, which can attack and destroy your plants. Scientists have found that two uncoated aspirin tablets (325 milligrams each) dissolved in 1 quart of water and used as a foliar spray can thwart these diseases.
http://www.finegardening.com/h...