How to manage lychee during the young fruit stage? Latest technical method tutorial

Lychee is a fruit that many people love to eat. Because of its requirements for the growing environment, it cannot be planted in many places, and its market price is very high. Therefore, more and more people are growing it. When growing lychee, we must do a good job of management, especially during the young fruit stage. So how should lychee be managed during the young fruit stage? Below, the editor brings you the management techniques for the young fruit stage of lychee. Let's take a look!

1. Fruit retention

About 5-20 days after female flowers are pollinated, lychee will show its first physiological fruit drop, which will have a very large impact on fruit set and yield. Therefore, during the young fruit stage, we must take good fruit retention measures to avoid excessive fruit drop, reduce yield, and affect growing benefits. So after the female flowers fade, we should appropriately spray fruit-setting hormone, control the dosage and ratio well, and mix with rainwater. When spraying fruit-setting hormone, be sure to direct it at the tree canopy to ensure thorough and even coverage, reduce physiological fruit drop, and achieve the purpose of fruit retention.

2. Fertilization

After lychee sets fruit, it consumes a large amount of nutrients. Therefore, after entering the young fruit stage of lychee, fertilization work must be done well to provide sufficient growth nutrients for lychee, promote fruit expansion, enhance the growth ability of lychee, and avoid fruit drop. This is also the time when the nutrient level of the lychee tree is at its lowest for the whole year, so we should fertilize reasonably according to the actual condition of the lychee tree. For a lychee tree with a fruit load of about 50kg, each tree should be fertilized with about 1kg of compound fertilizer, plus an appropriate amount of fertilizers such as magnesium sulfate.

3. Fruit thinning

Although we need to carry out fruit retention work for lychee trees, we should also appropriately thin fruit, and there is no conflict between the two. When young fruits grow to the size of black beans, fruit clusters that cannot set fruit, such as empty clusters and clusters with diseased or insect-damaged fruits, should be removed in time. Then observe the condition of the fruits and promptly remove undesirable fruits such as small fruits, deformed fruits, and fruits damaged by pests and diseases. Fruit thinning should follow the principle of keeping large ones and removing small ones, and the number of fruits retained should be controlled according to the size of the fruit cluster. For example, retain about 100 fruits for a large fruit cluster and about 30 fruits for a small fruit cluster.

4. Pest and disease control

The young fruit stage of lychee is the period of greatest nutrient consumption and also the weakest period for the tree. At this time, pests and diseases are relatively serious, so pest and disease control work must be done well. Common pests and diseases of lychee include downy mildew and fruit borer, and when controlling them, we must handle them according to the specific pest and disease situation of the lychee. When using pesticides, note that young fruits are relatively sensitive to organophosphorus, and exposure to organophosphorus can easily cause fruit drop. So everyone must be careful not to use pesticides containing organophosphorus.

The above is a brief introduction to the management techniques for the young fruit stage of lychee. Although management during the young fruit stage of lychee is important, management during other periods should not be ignored either, such as the flowering stage and fruit expansion stage, all of which require our special attention. That is all for today's introduction. This article is for reference only, and I hope it can be helpful to everyone.