Fertilizing Japanese Maple trees
We have japanese maple trees in containers on our balcony. Two of the JM, their leaves have fallen almost all off. We think the leaves have fallen prematurely though maybe someone can advise? Also, we haven't used any fertilizer on our JMs, which we got at earlier this year (2012). When should they be fertilized? I was planning to get Espoma Tone Tree Food and see if that will help.
Also, one of the JM has white powdery mildew on its leaves. Any recommendations as to what I can use to get rid of it? If the leaves are falling, will the white powdery mildew affect the JM when it grows new leaves in spring?