What to Do About Ginkgo Fruit Drop? The Latest Control Methods
Ginkgo is a large deciduous tree with a very long growth cycle. The oldest ginkgo trees have now been growing for several hundred years. Of course, the main value of the ginkgo tree is still the ginkgo fruit. Ginkgo fruit is a fruit that combines medicinal and edible uses, but ginkgo fruit should not be eaten in large amounts within a single day, because ginkgo fruit contains a certain degree of toxicity. But now many growers encounter a problem, which is that when planting they find that ginkgo trees often drop their fruit. So what should be done when this happens? Let's take a look together below!
1. Fertilizing
When the ginkgo tree blooms and young fruit appears, it should be top-dressed at least twice. The first top-dressing is done during the fruit enlargement stage, and then the second during the kernel growth stage. During the fruit enlargement stage, apply phosphorus fertilizer and other trace element fertilizers to promote the growth and development of the fruit. During the kernel growth stage, apply a mixed fertilizer of urea and phosphorus fertilizer, with the amount determined according to the growth condition and fruiting condition of the tree. This increases the accumulation of nutrients in the tree, improves the tree's resistance, and reduces the phenomenon of fruit drop.
2. Water
Ginkgo trees like neither water nor dryness. In dry weather such as summer, watering should be done in time, because under dry conditions the enlargement of ginkgo fruit will be hindered, yield cannot be increased, and the phenomenon of fruit drop will also be worsened, affecting the flower bud differentiation of the following year. If there is continuous rainy weather and water accumulates seriously in the orchard without being drained in time, the accumulated water will prevent the roots from breathing, leading to insufficient nutrient absorption and causing part of the area near the ground to begin shedding leaves and fruit. So we must do a good job of drainage and irrigation in the orchard in time to improve the fruit-setting rate of ginkgo.
3. Pruning
When the ginkgo tree grows to the flowering stage, it needs a large amount of light and nutrients. If there is not enough sunlight and water in the tree, it will cause poor fruit growth, the fruit stalk will begin to turn yellow, and the fruit will begin to drop. So during planting, we should properly prune away the water sprouts, overly dense branches and overlapping branches in the tree. But note that the wounds after pruning need to be bandaged well to prevent the loss of water and nutrients through the wounds. In this way, the permeability within the tree can be strengthened, the nutrient accumulation of the tree can be enhanced, and the phenomenon of fruit drop can thereby be changed.
4. Fruit thinning
Ginkgo trees are different from other fruit trees. The growth of ginkgo trees is divided into on-years and off-years. In an on-year, the number of fruits on the tree increases, easily exceeding what the branches can bear. If fruit thinning is not done in time, the branches cannot bear the weight and will break. Moreover, if there is too much fruit, the nutrients needed will also increase, causing all the nutrients to be transported to the fruit, so the branches and leaves do not have enough nutrition. And this will also make the on-year and off-year situation more serious, so we should do a good job of fruit thinning at the young fruit stage to prevent the fruit drop phenomenon caused by too much fruit later on.
The four points above are the methods for solving ginkgo fruit drop. Of course, what has been introduced is not very comprehensive; it has simply been discussed in these few aspects. Everyone also needs to pay attention to the work of preventing and controlling pests and diseases. Pests and diseases are also a main cause of ginkgo fruit drop. For example, the silkworm moth is one of them, and an appropriate amount of pesticide can be used for control to reduce the probability of fruit drop. This article is for reference only, and I hope it is helpful to everyone.