Shatian pomelo black spot, also known as scab, mainly damages fruits, especially fruits in near mature stage, and also damages leaves and shoots. Affected fruits affect the appearance, reduce the value of the goods, deteriorate the quality, and continue to develop diseases during the storage period, causing the flesh to become black and rot. The pathogen of Shatian pomelo black spot is the stem mould of citrus fruit, belonging to the semi-known fungus head. Wintering occurs on the diseased leaf with mycelial conidiospore, and windy weather or insects are transmitted when the spring climate is suitable. Symptoms occur when the fruit or leaves are nearly mature. In spring, the incidence of warm and high humidity is heavy, the tree vigor is weak, the tree crown is dense, the low-lying water plots, and the poorly-ventilated and light-transparent grapefruit garden is seriously affected. Before 1993, the disease was rarely found in grapefruit orchards. Since 1994, it began to develop in local citrus pomelo gardens in individual areas. Since then, the incidence has gradually expanded and the extent of the disease has become increasingly severe. Since 1998, it has risen as the main disease. In order to effectively control the continuous development of Shatin pomelo black spot, in addition to doing a good job of prevention and control of the disease in the current stage of black spot disease, it is necessary to earnestly implement various measures: 1 Do a good job in the winter and spring, clear the garden, cut branches and leaves, Reduce the source of the disease; 2 Strengthen the management of grapefruit orchard, adopt formula fertilization technology, adjust the ratio of nitrogen, phosphorus and potassium, increase organic fertilizer, increase tree vigor, and increase resistance to disease; 3 Chemical control: According to the pathogen, it is infected in young fruit period. The characteristics of the spray should be kept within one month to one and a half months after flowering. Generally, the first drug is sprayed with the therapeutic agent at 2/3 of the Xiehua, and then sprayed once every two weeks or so. Spray 2-3 times; in the young fruit expansion period with protective agents applied 1-2 times; September-November is the epidemic period of Shatian grapefruit black spot disease, but also the key moment of chemical control. After more than two years of application throughout the world, it has been shown that 10% Shigao Water Dispersible Granules is a specific treatment for black spot of Shatian pomelo. It is recommended to use 1000-fold concentration of Shigeo's prevention of black spot disease of Shatian grapefruit, 600 times of Dakkonin protective agent or 500 times of copper oxychloride.
Size
Because of different growing environment and conditions of itself, the fruit will be different types of shapes and sizes, usually we deliver the size 220/280/320/350 /500/550 and so on, but can also supply other sizes.
550Grains/50g Goji Berry
50g Goji Berry,Ningxia Wolfberry,20Kg Carton Goji Berry,Common Goji Berry
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