Purple Plum Leaf Drop After 30 Days Rain in Texas

4-yr purple plum in Texas lost leaves after 30+ days heavy rain. Rain cause? Remedy?

Diagnosis

Excess water = drought symptoms (leaf drop). Check viability: scrape twig bark – green = alive, brown = dead. Prune dead to green.

Prognosis

Hardwoods shut down in extreme weather. If cambium green, will re-leaf when weather normalizes (maybe this year, certainly next spring). No fix for excess rain.