July Management Youdao Gala increases production and efficiency of apples

Preventing leaf and fruit diseases and insect pests In July, the main diseases and insect pests that damage Gala apples include anthracnose leaf blight, brown spot leaf fall disease, red spider, apple leaf roller, double spotted leaf beetle, etc., and control leaf and fruit diseases before rain and before bag removal. The medication regimen for 1 to 3 days before the Gala apple is taken off the bag: 80% mancozeb 800 times 2.5% meflubenzuron 2000 times + 10% imidacloprid 2000 times + Hongrui leaf spray amino acid 80 times.

The 20 to 30 days before the ripening of the swelling fruit coloring fertilizer Gala apple is the period of rapid fruit cell volume expansion. During this period, the supply of fertilizer and water is sufficient. Orchard with bagging 10,000～15,000 acres, 1 bucket of Hongrui flushing amino acid per acre + 1 bucket of Australian Regen high-potassium type; orchard with bagging 15,000～20,000 acres, plus high-potassium water soluble Fertilizer 10-15 kg.

Take off the bags according to local conditions. From late July to early August, the Gala apples wrapped in paper bags in Fuping, Linwei, Pucheng, Fufeng, Heyang, Fengxiang, Tongchuan, Luochuan, Yichuan and other places in Shaanxi will enter the bagging period. According to observations, the suitable bag removal period in Weibei, Shaanxi generally begins on July 20 and ends on August 5. Pay attention to the weather forecast before taking off the bag. If the rain falls early, the air is humid, and the temperature difference between day and night is large during the suitable period for taking off the bag, it can be appropriately advanced 3 to 5 days. If the high temperature continues, it can be postponed for 3 to 5 days, otherwise it will not only be difficult to color after taking off the bag, but also turn green.

The general principle is: in the suitable period, whether the bag is taken off 3 days earlier or 5 days later, it should be flexibly determined according to the variety, weather and tree vigor. Easy-coloring varieties should be early, and difficult-coloring varieties should be late; weak trees should be early and vigorous trees should be late; when the rain is not waiting, sometimes the rain will not wait; the rainfall is suitable early, and the high temperature and dry are suitable late.

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