Dear Forum, the potted Acer Palmatum Mikawa Yatsubusa I had issues with twice (see below) has become quite worse; several twigs and one larger branch saw all leaves shriveling up. The shrivel-zones are at the "back" of the tree (facing a terrace window). The other two trees, potted after purchase in April 2016 with the exact same soil from the exact same batch are doing ok by comparison (more wind, more sun, inner city terrace situation). First issue from October last year Second issue from June this year Is my tree about to die? Is there something on the affected leaves or twigs I should examine closely?