It is a low-toxicity systemic fungicide, which can be absorbed by seeds, roots and leaves of crops, and conduct in the tissues, and is effective for ascomycetes and hemiptera, with the triple effects of comprehensive protection of crops, rapid treatment of diseases, and deep eradication of disease sources. Its mechanism of action is mainly to interfere with the formation of spindle in the mitosis of the fungus, thus affecting the cell division, and it can effectively prevent and control apple whorl disease.