Answer: In the late autumn and early winter, the pruning needs to be completely removed to remove the diseased branches, dead branches, stagnant berries, and fruit on the ground in the garden, and burn them centrally or deeply. In addition, it sprays 5 degrees lime sulfur before germination, and sprays it once every 10 to 15 days between the end of the month and June. It can also use sulfur suspension 800 times or 70% thiophanate-methyl wettable powder 800. Double fluid.
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