I heard lots of things. To much water, then to little. Calcium, Iron, to many to list. Well, I went online today to several sites and here's what the general ideas are.

It's a result of plant stress or poor pollination.


Nutritional causes: Nitrogen plays a key role in blossom drop. Too much or too little nitrogen will result in the loss of flowers. I've received many letters from people asking about blossom drop and I usually find they are over-fertilizing. Unless one has sandy soils or they are trying to produce record breaking fruit, I see no need to fertilize every week (especially with the "blue stuff").
Enviromental causes:
Temperature - Excessive temperatures (low or high) will produce blossom drop by intefering with the pollination or fertilization process. Generally, day temperatures above 90F or night temperatures greater than 70-75F will interfer with fruit set resulting in the loss of flowers. Research has indicated that higher night temperatures have more of an influence.
High Humidity - can effect either the release of pollen from the anthers or the adherence of the pollen grains to the stigma.
Other potential sources of blossom drop: Excessive wind Stress related to insect damage - (usually thrips or aphids) Stress related to foliar disease Lack of adequete light Extended light exposures - (24 hour exposure to a light source)
Excessive pruning


I've been hitting mine HARD with Miricle Grow and they've been growing like crazy but that seems to be my biggest problem. TO MUCH of it. Here's it's chemical numbers 24-8-16 Nitrogen is the 24, potassium is the 8 and potash is the 16. I'm gonna cut back on hitting them as much nand see what happens