Q.no fruit on grapefruit tree
Our white grapefruit tree does not have any fruit this year. Last year it had quite a few. Any ideas why no fruit this year? We also have a lemon tree that is at least 3 years old and has never had any fruit. We were thinking about taking it out.
There can be several reasons and combinations of reasons for lack of fruit.
Water, sun, pollination, and fertilizer are keys to tree production.
I would encourage you to have the soil tested as a great place to start, especially before removing a tree planting.
Your Lemon tree is still quite immature and really only began to enter the fruiting years at about 5 years.
Here are some links with more information.
https://www.gardeningknowhow.com/edible/fruits/lemons/lemon-tree-not-fruiting.htm
https://www.gardeningknowhow.com/edible/fruits/citrus/tip-on-water-requirements-for-citrus-trees.htm
https://www.gardeningknowhow.com/edible/fruits/grapefruit/growing-grapefruit.htm
https://www.gardeningknowhow.com/edible/fruits/grapefruit/grapefruit-tree-not-producing.htm
https://www.gardeningknowhow.com/edible/fruits/grapefruit/hand-pollinating-grapefruits.htm