Q.Grapefruit tree
My grapefruit tree is losing leaves and they are turning yellow. I have fertilized and it gets water every other day, but it still looks like it’s dying. I need to know what I can do about it. Thanks.
Certified GKH Gardening Expert
Either too much water or too little water can cause citrus tree leaves to turn yellow and drop off. The right amount of water to give depends on how dry your climate is, how the soil feels before and after watering, and how well-drained your soil is. If your soil is not well-drained, water can sit around the roots and cause root rot.
https://www.gardeningknowhow.com/edible/fruits/citrus/tip-on-water-requirements-for-citrus-trees.htm
http://mgorange.ucanr.edu/Edible_Plants/?uid=58&ds=530
Here are some other possibilities:
https://www.gardeningknowhow.com/edible/fruits/citrus/leaves-falling-off-citrus-tree.htm
https://www.gardeningknowhow.com/edible/fruits/oranges/yellowing-orange-tree-leaves.htm