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Ginkgo biloba blight frequently occurs from June to September. The diseased plant leaf color changed from green to yellow, and finally the leaves were left to fall; the growth points of the branches stopped growing, and the branches were severely dead. Control can be used 70% mancozeb WP wet spray 300 ~ 400 times, the front and back of the blade are to be sprayed. Control once every 7 to 14 days, a total of 5 to 6 times. Ginkgo trees that are not affected by the disease should also be applied at the same time.