|I live in Metairie, LA and my fruit trees (Meyer lemon, navel orange & pink grapefruit)are all mature trees. I have had them for many years. They have all dropped their fruit for the second year now. We fertilize once a year. Any help you can give, will be greatly appreciated.
|Water stress is about the only thing that will make a citrus tree drop all of its fruit. Fruit can drop if it is not pollinated but generally that affects only some of the fruits, not all of them. Be sure you are watering deeply enough to wet the entire root system when you water. Flooding might be the only way to get adequate water to the entire root system. Wish I had more suggestions to share.