I think it might be anthracnose. But how do I treat my entire yard. My trees are very tall.

Black spots on maple leaves are most often associated with tar spot, a fungal issue. Although it may result in some early leaf drop, it is generally not something that requires any treatment. Just clean up and dispose of any fallen leaves as the fungal spores can harbor on them over winter.

Plant diseases are usually very host-specific - what is happening to your maples has no relationship to the other plants. The weather much of the country has experienced this spring has encouraged the development of a lot of fungal issues, some that should be treated and others than can be ignored. If you post photos of the problems, a correct diagnosis of the disease can usually be deteremined and then treatment - if any - suggested. Try the Pests and Diseases forum for quick results.

Thank you, I will try to post pictures tomorrow.