My Grapefruit Tree Is About 20 Ys Old. My Tree Trunk/limbs Are Covered In Small Dark Round Circles. The Leaves Are Light Green And

Question

fruit small green grapefruit. The tree looks sick. I do not have a camera/

Answer 1

Unfortunately, without a photo it can be impossible to diagnose illness. My best guess from the description will be bacterial or fungal infections. This is most common when the tree receives too much water, or the soil does not have a chance to dry out thoroughly between watering.

I would recommend using fungicides according to all labels and instructions, as well as making sure that the tree receives little, to no extra water unless the soil becomes bone dry down to a depth of about 5 inches or more.

Here are some articles that will help:

https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm

https://www.gardeningknowhow.com/special/organic/biofungicide-information.htm

https://www.gardeningknowhow.com/edible/fruits/grapefruit/growing-grapefruit.htm