maple leaves yellowing and developing holes
i have a 35' maple that is nearly 40 years old. i have only been here a year but have seen the same problems with it last summer. when the leaves first emerge they are green and very healthy. as the season goes they all eventually develop holes, turn yellow to brown and get thin and less pliable. we have been in a drought for some time so i wonder if it could be leaf burn? i am concerned because i also have three maples in my front yard that i believe have verticillium wilt. i lost one maple that way and the other two have been cut back severely. i am hoping they will overcome it but who knows.