What to Do About Severe Fruit Drop in Gonggan Oranges? Detailed Explanation of Causes and Control Methods

Gonggan is a hybrid variety of orange and mandarin, combining the double advantages of orange and mandarin, bringing together the orange's appearance with the mandarin's fine, tender flesh and easy-peeling benefits. It is unmatched by other citrus varieties and is hailed as the king of citrus. However, during Gonggan cultivation, massive fruit drop occurs, causing severe yield reduction. So what should be done about Gonggan fruit drop? Let's take a look.

1. Climate

Climate is the main cause of Gonggan fruit drop. Summer is originally a rainy and humid period, but if there is prolonged high temperature and drought, the surface temperature rises, which affects the root system's absorption capacity and the plant's normal metabolism, worsening the fruit drop.

Solution: During periods of high temperature and drought, water and irrigate promptly to supply the plant's water needs. At the same time, spray water mist to lower the temperature, protect the leaves and fruit, and reduce fruit drop.

2. Excessive Girdling

Many fruit farmers often carry out girdling during management to protect the fruit, and some even carry out a second girdling. The second girdling is mainly to prevent the sprouting of summer shoots, but girdling again during drought will lead to poor nutrient absorption in the plant, making fruit drop even more severe.

Solution: Generally speaking, when carrying out fruit-preserving measures, except during periods of abundant rain when the goal is to prevent summer shoot sprouting, a second girdling is usually unnecessary. Also, when girdling, be careful not to cut too deeply, to avoid weakening the tree, which can likewise cause severe fruit drop.

3. Excessive Summer Shoots

Every year in summer is the period when summer shoots sprout. The sprouting of summer shoots consumes a large amount of the plant's nutrients, and if shoot removal work is not carried out at this time, the fruit will drop due to lack of nutrients. Many fruit farmers, when the plant experiences its first physiological fruit drop, apply too much fertilizer or foliar fertilizer, which causes the summer shoots to grow even more vigorously and the fruit drop to become even more severe.

Solution: During the physiological fruit drop period, be sure to do a good job of controlling shoots to reduce the plant's nutrient consumption. At the same time, spray foliar fertilizer to reduce fruit drop.

The above is an introduction to what to do about severe fruit drop in Gonggan oranges. We hope it can help you. To learn more related knowledge, please keep following us.