I have a beautiful Japanese Maple Tree it is 10 feet high. This past winter due to heavy snowfall,the snow split the two main branches down the center, The split is approximately 1 inch open at the top and 6 inches long. (The tree is in full bloom now).
I know that bugs and bacteria can get into the split and in time could kill the tree.
Could I fill the split in with a wood filler to seal up the split, if not do you know what I can do to solve this problem. Thank you.