Strengthen management, rationally trim, pruning, reduce humidity; prevent years of small and medium results, control fertilizer and water, and timely control other pests and diseases, reducing the chance of infection.
Clear the initial infestation source, pruning and pruning, thoroughly cut off diseased branches and leaves, and increase the ventilation and light transmission of orange trees. Timely clear the ground litter and litter, and burn it intensively.
Chemical control, protect the health of new shoots and young fruits, and prevent infection by germs. Early prevention and control, the first time should start in the spring shoots, the buds start about 2 mm, and the second time is about 2/3 in Xiehua. With targeted drug + plant cell immune factor prevention, strong immune function, induce interferon and active interleukin, inhibit residual virus replication, and promote plant positive energy ecological growth.
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