Why do cherry blossoms fall early?
Cherry blossoms, which are supposed to have fallen leaves in mid-September, have fallen leaves in mid-August for four or five years in a row, and no insect pests and obvious diseases have been found, while there is no such phenomenon in the surrounding nursery. What is the reason?
Xu Shaoyuan, technical director of Zhejiang Senhe seed Company, replied: there may be three reasons for the early defoliation of cherry blossoms. First of all, there are insect pests. Longicorn beetle larvae under the bark at the base of the trunk can cause the whole branch to fall leaves ahead of time, and if the larvae are in the main root, it will cause the whole tree to fall leaves ahead of time, so it is very important to check whether there are any insect pests. Generally speaking, the nitrogen fertilizer content of 3 ‰ is more appropriate, the stirring is uneven, and the concentration at the bottom becomes larger, which leads to the early defoliation of trees. In addition, the dry climate, uneven water supply, lack of water in the nursery or too much water in Rain Water will result in poor tree growth, hindered nutrient transport, and early defoliation. It is worth mentioning that the flooding of Rain Water in the south this summer can easily cause soil consolidation, hinder the exchange of soil gases and air, and strengthen the management of fertilizer and water, so as to enhance the resistance of trees and shed leaves normally.
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Management of summer cherry blossoms
1. Grass mulching has high temperature in summer, evaporates quickly, and the amount of water is more than that in other seasons, but it is still necessary to adhere to the principle of "no dry, no watering". Cherry blossoms are shallow root plants, and the roots are close to the surface of the soil and are easy to dry. Straw can be used to cover the roots of the trees, which can not only maintain moisture and resist drought, but also prevent the capillary roots of cherry trees from being exposed, and greatly reduce the evaporation of soil water. 2. Dry entanglement and drought prevention can be wrapped with straw within 2 to 3 years after planting to prevent the trunk from drying. Because the cherry blossom bark is thin, wrapping the bark can prevent it.
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Suriname red cherry blossom
Scientific name: CalliandrasurinamensisBenth family genus: mimosa family Chinese name: Miminaceae genus: mimosa family Zhu cherry blossom origin: tropical America introduction: Suriname red cherry blossom is an evergreen shrub or small tree, leaves such as pinnae, stamens such as red cherry, longer flowering period, higher ornamental value. The flower picked at the beginning of the flower in June is called albizzia, and the bud picked when the flower is not in bloom is called albizzia rice. The species of the same genus are Zhu tassel and large Zhu tasseled flowers. Soil
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