I live near Escondido CA and the Bearss tree is almost 2 yr, about 4 ft. It gets flowers and they become 1/4 inch fruit but soon drop. I feed the tree Miracle Grow citris granular in a 3 ft. basin and deep water monthly except in rainy season. I have a hardy lemon tree getting same treatment and thriving. Occasionally, some leaves look like they have been partially burned. I would appreciate any advice.
Bearss Lime Tree
Certified GKH Gardening Expert
Your Bearss tree may be dropping fruit simply because it is so young. Here are some other possible explanations for fruit drop:
As for the leaves that look like they've been burned, this is commonly caused by harsh weather, either frost damage or sunburn. If you are applying more than the recommended amount of fertilizer, it could also be fertilizer burn: