Recently, I visited my brother in Thailand and he has a fig tree which was doing well for a while then a rust attacked and the fig tree looked sick. I searched internet and found that some people use aspirin to treat rust in some plants so I tried it. It worked, all leaves with rust soon died away and new leaves have no rust so far. I was just wondering if anybody uses it for anything else besides roses and tomatoes. I'm thinking of trying it on my pear trees. Any thoughts?