Hi! I’m brand new to this forum, in fact it’s the first forum I’ve ever actually posted to! I gave a 30 yr old Umbrella Tree Schefflera that is rapidly deteriorating, wilting, brown, dropping leaves. I’ve experienced some of these symptoms in the past and determined they were a result of overwatering as there was improvement after letting it dry out. Since then I am very diligent with watering schedule and monitoring moisture and until recently it seemed to appreciate it. I have inspected for pests but found no visible indicators. This plant has tremendous sentimental value in our home and it would be heartbreaking to lose it. Did I mention it is 30 years old!? Any advice would be greatly appreciated!