Posted by Judy DeMars on July 13, 2003 at 18:52:20:
A Spring of heavy cold rain brought fungus to my roses & clematis....So, I made a spray of garlic oil,peppermint soap, baking soda & apple cider and applied to all- even my Japanese Weeping Cherry. We had very hot humid weather following this .
A while ( week or so) after, my entire tree turned brown,with the exception of about 2 branches. I assumed that it had to be from my spraying-altough NONE of my other plants were affected. None of the sweet woodruff, impations, coral bells all under the tree. I quickly sprayed the tree with water to try to rinse the tree...after the sun was down of course.
Since none of the other plants have shown signs of distress...I started to wonder if there was another cause for the leaves browning & dropping off. I cannot find any signs of sap running or bore holes. I've been trying to keep a watch on the few remaining green leaves. The tree is good size & was planted in '96.
...I have noticed that just below where the graft was the trunk has swelled in size, as if someone had girdled (squeezed) just above it to back up liquid. Maybe I'm looking too hard for a cause I can hopefully fix.