Question: fruits that fall

I have fruit trees like pears, apples, persimmons, etc., which cannot ripen because the fruit falls first ... I would like to know why?

Fruit drop: Answer: fruits that fall

Dear Enzo,
fruit trees generally produce some fruits thanks to the fertilization of flowers, thanks to pollen carried by the wind and insects; other plants, such as caco, produce fruit even without fertilization; the number of fruits can be varied, depending on a series of factors, but if the plant is not perfectly able to ripen the fruits produced, then these are left to fall, all or in part.
This phenomenon is called fruit drop of fruits, and has very different causes, depending on the case. The most typical and common case concerns the age of plants: if we have very young fruit trees, which are still developing most of their ramifications, then it is normal for the plant, not yet having the capacity to ripen the fruit, lets them fall when they are still green; this phenomenon is especially noticeable in the persimmons, which usually produce a small fruit for every flower present on the plant, even if it is a specimen of 3-4 years, most (or all) the persimmons still fall green and tiny.
If your fruit trees are very young, or you have placed them for less than 3 years, then it is a normal event for them to lose the fruits they have produced; do not worry in any way and armed only with a little patience: with the passing of the years the fallen fruits will be less and less, and in ever greater numbers will be brought to maturity. If, on the other hand, your trees have been planted for a few years, and every year the fruit trees fall without anyone coming to maturity, then it could be problems related to cultivation or climatic conditions: the plants must be in perfect health to bring to maturity the fruits that they produced.
The reasons that most often cause the fruit drop of the fruits are related to the climate: excessive cold when the fruits are already present on the plant causes the fall of all the fruitlets rapidly. Other problems may be related to drought, or to fertilizing: to have juicy and well-ripened fruits it is important that the plants are cultivated in the best possible way, with watering in case of prolonged drought, in a well-drained soil, which does not allow the excess water to stagnate around the roots, with adequate fertilizers to be supplied throughout the year.
Adult fruit plants, which have been living for a long time, generally tend to be satisfied with the water provided by the rains, but during the flowering period, and when the fruits are present it is good to avoid leaving the plants completely dry, and then , if the climate does not help us, it is good to water the plants, wetting the soil thoroughly, once every 2-3 days.