How to manage oranges in July?

How to manage oranges in July? Please introduce that citrus in July can be managed with reference to the following methods: (1) Fertilizer and water management is easy to meet high temperature and summer drought in July, and the chance of rainstorm is also significantly increased. Therefore, all localities should pay special attention to the weather forecast of local meteorological stations, covering the tree plate with straw in case of drought, with a thickness of 15cm to 20cm, and keep a distance of 10cm from the root neck. pay attention to prevent the cracking of precocious Wenzhou mandarin and local early tangerine caused by the imbalance of water supply, and at the same time pay close attention to the occurrence of rainstorm. For orange orchards caused by typhoon and torrential rain or high groundwater level, the ditches should be repaired and drained well. It is appropriate to apply strong fruit fertilizer within 1-2 weeks before autumn shoot heading. Young trees can be treated with mature human and animal manure 5-10 kg or urea 0.2-0.4 kg, calcium superphosphate 0.5 kg, potassium sulfate or potassium nitrate 0.1 kg to promote summer shoot growth, autumn shoot germination and expand tree crown. If the tree is weak, the strong fruit fertilizer should be increased appropriately, or potassium and nitrogen should be given priority to in the first and middle of July, combined with the application of phosphate fertilizer, accounting for 20%-40% of the whole year, so as to promote the neatness of autumn shoots. Orange trees that do not bear fruit and bear little fruit can be applied less or not. (2) the pruning of controlling shoot and thinning fruit in summer is carried out 15 minutes and 20 days before autumn shoot. Young trees erase the adventitious buds or sporadic new shoots below the trunk and main branches, cut short and grow branches, and the summer shoots are picked to promote the second summer or autumn shoots to cultivate the tree-shaped structure and promote the expansion of the crown. The summer shoots of the first fruit trees above 25-30 cm were coring or cut short. Appropriate truncation of aging trees, promote new shoots, renew and rejuvenate trees. Summer shoots usually occur on orange trees with strong tree potential or less fruit, continue to erase late summer shoots to the middle of July, and senile trees and trees with more fruit are released in late July. After physiological fruit drop, early coarse fruit thinning can be carried out for the plants with many flowers, too dense small fruits, deformed fruits and pest fruits can be removed, and the young fruits with normal development and balanced distribution in the crown can be retained to ensure that the fruit left behind has normal growth and development and good appearance and endoplasm. (3) Disease and pest control due to the suitable temperature and humidity during the plum rain, the disease is easy to breed, spread and develop, so we should pay attention to strengthen monitoring, active prevention and control, and timely control the disease if it occurs. White trunks, especially high-grafted trees, to prevent resin disease caused by sunburn; individual copper skin fruits or 5% leaves or fruits with rust mites, you can choose 1000-2000 times of 10% liuyangmycin EC, 20% tetraacarazine 1500 × 2000 times or narrow high-precision oil emulsions (such as green glumes). Oil emulsion can also control scale and whitefly pests. Improving the ventilation and light transmission of the crown and cutting off dead branches are important measures to reduce the occurrence of black spot disease. You can choose 400-600 times of 80% essential wettable powder, 600 times of 80% Dasheng Mly45 wettable powder, 500-800 times of 70% methyl topiramate wettable powder, and pay attention to prevention and control again after 250 mm of rainfall. Dasheng MMel 45 can also control rust wall lice. Continue to hunt and poison longicorn beetles and trap moths with insecticidal lamps. Grasshopper cicadas are mainly trapped and killed artificially, and the spawning branches are cut off and burned centrally. Click to get more citrus planting techniques click to get more fruit planting techniques