This is the second time this season that the tree has done this. It goes from healthy one day to all of the leaves dying. A few days later new leaves sprout. I used the fungicide after the first time thinking it was a fungus. This picture is about a week after the second time all the leaves died, as you can see leaves have already grown back.
The tree has received regular morning time watering all summer.
Any advice would be much appreciated.
