Causes of kiwifruit drop

Kiwifruit is often encountered in the process of growth and development, which will seriously affect the yield of kiwifruit, which is also a very distressing thing for fruit farmers. Then why do rhesus monkeys drop fruit and flowers? Next, the editor will talk to you about the causes of kiwifruit drop.

1. Abnormal climate

The fruit drop caused by abnormal climate usually occurs after flowering, and there will also be flowers at the same time. Because rhesus monkeys are most sensitive to weather and climate when pollinating, 15-28 degrees is the most suitable temperature for pollination and fertilization of kiwifruit. Below 15 degrees or higher than 28 degrees will affect its pollination. And the appropriate humidity is more than 55%, but if the pollen meets water, it will break and cannot be pollinated.

2. the quality of pollen is poor.

Kiwifruit pollen germination rate should be higher than 30% before it can be used. But many fruit growers use different kinds of pollen, and the quality is also very different. Most of them are less than 30%. Some experiments have shown that when the pollen germination rate is less than 30%, it will lead to poor pollination between kiwifruit and fruit drop.

3. Excessive nutrients

Many fruit growers spray pesticides and water during the flowering period of rhesus monkeys, but if there is too much fertilizer and water, the kiwifruit will be too nutritious and heavy, and the branches will not be able to bear the weight, resulting in fruit drop. However, in the normal flowering and fruiting, it is necessary to ensure that kiwifruit has an adequate supply of fertilizer and water.

4. Fruit drop due to disease

During the growth and development of kiwifruit, there will be many diseases, such as Sclerotinia sclerotiorum, Botrytis cinerea and so on. These diseases will harm the fruit and fruit tip in varying degrees, resulting in fruit rot, withered branches and fruit drop.

5. Fruit drop caused by drug damage

When kiwifruit blossoms and sets fruit, it is the most sensitive period to the external environment. If the medicine is not used properly, it will directly harm the flowers and fruits. Many people are in order to control some diseases, such as flower rot, and some leaf diseases can not control the dosage of good drugs. And it is convenient to mix all the medicines such as fungicides, pesticides and so on, causing fruit drop.

6. Improper management

In many cases, the fruit drop in some orchards is very serious in the same environment, just because it is not in place in the daily management. For example, excessive fertilization and unreasonable allocation. Too much cultivated land hurts the roots, the branches and leaves are too dense, ventilated and poorly illuminated, and so on. These problems are the causes of fruit drop.

Kiwifruit is the most sensitive in the fruit, so we should pay attention to its maintenance and try not to spray it during the fruit period. Manage the ventilation and drainage in the park. The above is the reason why the kiwifruit sorted out by the editor. If you want to know how to solve the fruit drop, please continue to follow the pro-agriculture network.