The causes and control methods of the latest mango only blooming and not bearing fruit

Mango is a kind of fruit that many people like, the market demand is big, the economic benefit is high, so there are many growers, many growers often encounter the phenomenon that mango plants only blossom but do not bear fruit. What's going on? Let's get to know it with the editor.

First, the reason why mango only blossoms but does not bear fruit

1. Improper management

In the flowering and fruiting period of mango, it is the period when the plant needs the most nutrients. If there is no reasonable matching of fertilization, the content, type and time of the dosage will affect the flowering and fruiting of the fruit trees, resulting in the underground fruit setting rate. The growth strength of the tree, the management of the two canopy leaves in the early stage, the branches in the shoot control stage, and the leaves are not aging and neat enough, will have an impact.

2. Climatic factors

In the flowering and flowering stages of mango trees, the weather is good or bad, because the pollen is extremely sensitive to low temperature weather. Under the influence of low temperature, overcast and rainy days, it will affect the normal germination of mango pollen and decrease the pollination rate of mango. Resulting in poor mango fruiting. If there are too many Rain Water at this stage, the pollen will be washed away, and the activity of insects in the rainy season will decrease, which will also affect the effective pollination of the plant, resulting in poor pollination and a decrease in fruit setting rate.

3. Influence of diseases and insect pests

From mango flowering to flowering stage, it is the peak period of all kinds of diseases and insect pests, and it is also the period when pesticides are sprayed the most. At this stage, the most easily infected diseases are anthracnose, powdery mildew, stalk rot, bacterial angular spot, bituminous coal disease, gum disease and so on, and the most common pests are thrips and flat-beaked leafhoppers. They will continue to harm the tender buds of the plant, and do more harm to the flowers. The damaged buds will slowly turn black until they wither and tear off, and the harmful fruits will also appear disease spots, affecting the fruit setting rate and fruit quality.

II. Prevention and control methods

1. Strengthen management

Mango in the early stage to control the application of nitrogen fertilizer, should not be partial application of nitrogen fertilizer, lest branches and leaves grow, absorb too many nutrients, resulting in low flowering and fruit setting rate. On the other hand, excessive growth of branches and leaves will also lead to poor permeability, affect photosynthesis, and cause diseases and insect pests when the humidity is high. At this time, it is necessary to prune the withered branches, diseased branches, thin and weak branches, long branches, etc., so as to make the branches distribute reasonably and increase the accumulation of nutrients in effective shoots, which is conducive to germination differentiation and improve fruit setting rate.

2. Water management

When mango florescence meets overcast and rainy weather, it is necessary to shake flowers in time after rain, to avoid causing flower rot, while spraying chemicals in time, sterilizing, repairing wounds, reducing the incidence of flower rot, and replenishing nutrients such as polysaccharides and peptides. Strong flowers protect flowers.

3. Pest control

It is necessary to remove the withered branches and fallen leaves, diseased flowers and diseased fruits in the garden in time after rain, so as to reduce the source of infection and reduce the number of bacteria, while spraying 150-300 times of Liangguoan + 500 times of Tilwang + 600 times of Wofengsu to repair the wounds caused by wind and rain. cut off the pathways of bacteria invasion, but also can supplement the tree with high-energy materials, which is conducive to the restoration of tree potential. When diseases occur, we should prescribe the right medicine to prevent and control them in time, so as to avoid further expansion of diseases and insect pests.

The above is the mango blossom without fruit reasons and control methods, hope to help you, want to know more related knowledge, please pay attention to us.