Method for preventing and treating apple branch blight of bergamot pears

The invention belongs to the field of fruit tree disease prevention and relates to a method for preventing and treating apple branch blight of bergamot pears. The method comprises the following steps: (1) confirming primary infection focus, namely identifying and confirming the primary infection focus according to the disease degree in a bergamot pear garden in the early attack stage or in a mild-moderate attack; (2) primary infection focus treatment: including A, marking; B, waterproof ring making; C, heavy pruning; D, chemical spraying; E, re-attacked branches saw-off from the branches of the central trunk for disinfection; (3) auxiliary treatment of the primary infection focus, including ferment and microbial fertilizer application to enhance tree vigor; chlormequat chloride application in the full-bloom stage of the bergamot pears; decomposed barnyard manure application in autumn; (4) diseased residual body treatment for the primary infection focus, namely complete destroy of all pruned diseased and resid