One of the most common problems in jujube production is the large amount of flowers, but the problem of falling flowers and fruits is serious, which seriously affects the output of red dates and the economic benefits of date farmers. Careful analysis shows that there are many reasons for jujube trees to drop flowers and fruits, which are related to jujube tree varieties, site conditions in the park, and climatic conditions during flowering. However, there are other reasons that are directly related to the drop of flowers and fruits.
Improper spraying of pesticides during the flowering period of jujube trees, aphids, jujube leaf ticks and other pests on the jujube trees occur more frequently, especially the jujube trees planted by farmers themselves in the garden. If pesticides are sprayed during the flowering period, it will affect the flowering of jujube trees. Pollination, jujube trees are more sensitive to organophosphorus pesticides, so in the prevention and treatment of jujube tree diseases and pests, to avoid the choice of organophosphorus pesticides, or pesticides containing organophosphorus pesticides and other pesticides. During the flowering period of jujube trees, pesticide spraying should be avoided as much as possible, and the concentration of sprayed pesticides should be strictly controlled, and not increased randomly. If you must spray pesticides during flowering, you should choose to spray in the afternoon as well.
The malnutrition of the jujube tree is synchronized with the growth of the branches. When the jujube tree is blooming, the nutrients required are relatively concentrated. If the jujube tree is weak, the nutrients stored in the previous year are insufficient, and the supply of nutrients is insufficient. Can only increase the flowers and fruits to ensure the normal growth of a few flowers and fruits, and to ensure the growth of jujube branches.
Do not pay attention to pruning the jujube tree should be combined with summer and winter pruning, if the jujube tree grows too vigorously, it is easy to form a canopy shade, resulting in less flowering of the jujube tree. Poor ventilation and light transmission will affect the photosynthesis of jujube trees. Jujube trees do not like shading, but like light and well-growth growth environment. Therefore, summer pruning should be taken seriously.
Diseases and insect pests The diseases and insect pests of jujube trees generally include jujube rust, jujube iron skin disease, peach borer, jujube leaf tick, jujube armyworm, jujube turtle beetle, chafer, red spider, aphids, jujube inchworm, etc. The flowering and fruit setting of the jujube tree will cause falling flowers and fruits when it is serious.
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