Key Points for Summer Management Techniques of Xixi Pomelo

I. Adult Teak Management
1, re-apply steady fruit fertilizer. In the middle and early May of May, the plant produced more than 80 pounds of pomelo fruit in the pomelo tree, and applied 2 kg of compound fertilizer + 0.5 kg of urea. After the whole garden applicator, the soil (within a depth of 20 cm) was combined with the soil; or dredged along the canopy drip line 4 -5 points fertilizer and cover the soil; conditions can be applied with organic fertilizer.
2, timely control of pests and diseases. Major diseases: anthrax, maculopathy, black spot, soot, ulcer disease. Major insect pests: Insect pests such as rust mites, red spiders, scale insects, orange fly aphids, bridge insects, longhorn beetles, and leaf leaf moths. Period of prevention and treatment: In the first half of May and mid-to-late mid-term, each drug is sprayed. After June, the drug is sprayed every 25-30 days. The agent can be used: 1 manco manganese zinc + Lebenben + avermectin; 2 can be killed + endangered + furazolidone. The use of agents should be changed from time to time. Do not use drugs alone.
3, summer trim. Focus on cutting off the falling branches, and trim the long branches and landing branches. The trees that are too closed in the upper part can also be used to saw large branches "open skylights" in order to promote the fullness of the inner branches and branches, and to lay the foundation for flowering next year.
4, timely fruit thinning. After the young fruit is 4 cm in diameter, it can be used for fruit thinning, first sparsely deforming the fruit, then sparing too many young fruit, and finally setting the tree to produce fruit. Determine the amount of fruit left, and remove all the excess.
5. Remove summer shoots in time. This can reduce unnecessary consumption of nutrients and promote fruit enlargement; second, it can cut off the food chain of insect pests such as orangeflies and reduce damage to pests and diseases.
6. In the middle and late July, a strong fruit fertilizer should be applied again. The amount of fertilizer is the same as that of a steady fruit fertilizer.
Second, young teak tree management
1. Fertilization: Fertilizers for young pomelos should be dominated by nitrogenous fertilizers and phosphate fertilizers. It is generally pourable with water or sprinkled around the tree tray with rain. It is less advisable to apply acupuncture points to avoid damaging the roots.
2. The summer and autumn shoots of young trees are vulnerable to leaf miners. The prevention and control of leaf miners is the most important time to achieve the purpose of control. Each tip shoots twice: for the first time, a 1-inch long spray is applied to the shoots; the second time the shoots are drawn, but the leaves are sprayed with more than half of them. Pharmacy can be used: Methomyl or Allianc, etc.
3, young teak trees can be all green in the May-June month after the green hole expansion hole. Multiple weeds, green manures and soil miscellaneous fertilizers should be applied to the hole to promote the development of new root groups with improved soil from the pomelo garden.