The invention provides a
fungicide and belongs to the technical field of pesticides. The active ingredients of the
fungicide provided by the invention are benzovinfluconazole and
pyrimethanil; the
mass ratio of the benzovinfluconazole and
pyrimethanil is 1: (1-20). Benzodiflufenazole acts on the
protein complex II in the mitochondrial respiratory
electron transport chain of
pathogenic bacteria, causing
tricarboxylic acid cycle disturbance, hindering its
energy metabolism, and then inhibiting the growth of
pathogenic bacteria, leading to their death, so as to achieve the purpose of
disease prevention and control. The bactericidal mechanism of
pyrimethanil is unique. It prevents the infection of
bacteria by inhibiting the
secretion of
bacteria infection enzymes, and kills the
bacteria. It has protective and therapeutic effects, as well as systemic and
fumigation effects. The present invention adjusts the
mass ratio of benzovinfluconazole and pyrimethanil to 1: (1-20), which has obvious synergistic effect, and at the same time reduces the resistance produced by a single
drug, and the effects of synergistic and reduced application, Reduce the cost of pesticides for the prevention and control of
crop diseases.