Please help, I have two trees in pots, 1 Nagami 3'8" tall and 1 Meiwa 3'2" tall. The trees are making new branches and leaves but the fruit is falling off. They make new flowers that loose their petals and leave a small fruit. The fruit stays on the plant but after a few weeks they fall off, this process then starts over with new flowers. I live in Dallas TX and the weather has been in the 100s for several weeks, I do water the plants every day. The leaves look good and dark green, and as I said above they are constantly making new growth in the form of branches and leaves. What am I doing wrong?