What is the cause of fruit cracking in pear trees

When planting pear trees, they are most afraid of fruit cracking, because fruit cracking is one of the most common problems in pear trees. Due to the excessive incidence of the disease, many growers do not have a reasonable way of prevention, here are to understand the following causes of fruit cracking, targeted protection, prepare for anti-cracking fruit.

1. Physiological dehiscence

Physiological fruit cracking means that there are some abnormal situations in the growth cycle of pear trees, such as abnormal rainfall, temperature and other factors, but growers do not make targeted adjustments, resulting in fruit cracking. The common ones are too much Rain Water in the fruit expansion period, growers did not do a good job of drainage in time; sufficient light during the expansion period, fruit growth very fast, and lack of water, and so on, all these are the reasons for physiological fruit cracking. Therefore, when planting, you should adjust your orchard management instead of being immutable.

2. Uneven fertilizer

Fertilizer is also relatively easy to cause this disease, many people have a kind of habitual thinking, that is, more fertilizer, fruit trees grow better, in fact, too much, balanced fertilization is the key to the healthy growth of fruit trees. The common ones are those who do not take nitrogen fertilizer seriously and always add nitrogen fertilizer, which will lead to fruit cracking; the second is to know only a few basic fertilizers of nitrogen, phosphorus and potassium, while mixing some other trace elements needed by fruit trees, such as calcium and boron, which can also lead to fruit cracking. Fertilizing should be evenly mixed, find out what kind of fertilizer is needed at each stage, and do not apply fertilizer blindly.

3. Disease

Diseases can also cause fruit cracking, although most diseases of pear trees lead to pear rot, but there are also diseases that can lead to pear fruit cracking. For example, black spot, although initially only on the leaves, but after the transfer to the fruit, it will cause the fruit to slowly crack and rot. So if it is found that the fruit is cracking while the fruit tree is abnormal, then we should pay more attention to the causes of the disease.

4. Hormone abuse

Finally, this is generally caused by human factors, not every orchard of pears will be of high quality, in order to promote the growth and sale of pears, some people will choose to use hormones on pear trees. Controlling the dosage does help to grow high-quality pears, but if the dosage is not controlled, the fruit will crack, because these hormones will lead to abnormal growth of pears and increase their demand for certain nutrients. If these nutrients are enough, it will naturally grow into a very good-looking fruit, otherwise it will cause the fruit to crack.

These are some of the reasons for fruit cracking when planting pear trees, which are only relatively common. There are some other rare ones, such as too much sun to open the pears and so on. We should first understand the reasons and solve them in the district.