Method for detecting infection of Korla fragrant pears with rot disease

The invention provides a method for detecting infection of Korla fragrant pears with rot disease. The method for detecting infection of the Korla fragrant pears with the rot disease comprises the following steps: one-year-old branches are selected on fragrant pear trees in different directions respectively, at least 20 branches are selected from each tree, phloem of each branch is peeled off and subjected to fixation, drying and grinding treatment, and phloem powder is obtained; after the phloem powder is treated with a H2SO4-H2O2 heating digestion method, content of mineral elements in the phloem is determined, and whether each pear tree is infected with the rot disease is judged according to the content of the mineral elements, wherein the mineral elements comprise at least one of N andK. According to the method for detecting infection of the Korla fragrant pears with the rot disease, the content of the mineral elements in the phloem is determined, and whether each pear tree is infected with the rot disease