The invention provides a method for controlling the plant enrichment degree of various high-grade drugs, which is very effective against the plant enrichment degree of various high-grade drugs, Including the application stage of an effective amount of diazo compound, the formula represents (1): growing in a plant or soil Plant, plant Present invention provides a method for controlling discharge-type multimdrug resistant plaNT diseases which includes：a step for treating a plant or soil in which a plant is culated with an effective dose of a dithiin tetra-carboxy imide compound which is represented by formula（1）and exports excellent efficiency against discharge-type multimdrug resistant plant diseases.La presente invención proporciona un método para controlar las fitoenfermedades resistentes a múltiples fármacos de tipo eflujo que muestra una excelente eficacia contra fitoenfermedades resistentes a múltiples fármacos de tipo eflujo, comprendiendo dicho método una etapa de aplicación de una cantidad eficaz de un compuesto de ditiíntetracarboxamida representado por la fórmula (1): a una planta o suelo donde crece la planta.The present invention provides a method for controlling discharge-type multidrug resistant plant diseases which includes: a step for treating a plant or soil in which a plant is cultivated with an effective dose of a dithiin tetra-carboxy imide compound which is represented by formula (1) and exhibits excellent efficacy against discharge-type multidrug resistant plant diseases.
