Okay, so maybe I should join sufficient self to get an answer to this questions, but you folks all seem so knowledgeable about so much. We have an apple tree at our office. Well i just went out to pick some apples and there are dark spots all over them. when i wash the apple some of the spots come off. here's a picture -- maybe someone can tell me what i need to do, either now or for next year. These are the best Green apples.