We just bought a house, and there is a grapefruit tree in the backyard. It is about 12 feet high. I have removed the dead branches. There is not a lot of fruit, and the fruits are very dark. Some of the leaves are wrinkled and dark. What should I do? I really want to keep it. Thank you in advance.
Certified GKH Gardening Expert
One possibility for the dark color is sooty mold. Please check this article to see if symptoms match:
This article discusses possible problems leading to few or no fruit:
The dark, wrinkled leaves could be citrus leaf curl or one of the diseases discussed below: