Measures for prevention and control of litchi ulcer in autumn and winter

In the autumn and winter seasons, pay attention to check the branches and branches of litchi, and find that there are blemishes on the branches and branches of the trunk. It is necessary to spray 2~3 times of fungicides + guard trees to disinfect and sterilize, sterilize, prevent virus replication and infection. At the time of onset, the mother's mother liquor is applied to the affected area to effectively prevent ulcer disease. After the litchi clearing in the winter, spray a fungicide to evenly spray all the branches and trunks inside and outside the canopy. In this way, it helps to completely kill the pathogens of the ulcer disease on the lychee tree. After the temperature rises in the spring of the next year, the incidence of ulcer disease is reduced, and the mites on the trunk and branches will fall off, and the branches will begin to return to normal growth. .

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