Hi, I'm from Zone 8A. I have planted 2 year old persimmon tree last November (2017). And My tree got new branches , leaves and flowers as well. around 20+ flowers it has. But since 2 days leaves started wilting and then the flowers are dropping off

. Weather was so hot for the last week (90+) , hence I thought that it will be back normal. Now weather is good. it went down to 75 and had a little bit rain yesterday and today.But day by day the condition becomes worst. Please suggest me how to take care of this???TIA