Kresoxim-methyl is in the chemical family of Strobilurins. They are based on naturally occurring antifungal compounds in certain wood-decaying mushrooms. Systemic fungicide with protective and curative/eradicative effects against a wide range of fungal diseases.
It is absorbed through the roots and translocated in the xylem to the stems and leaves, or through leaf surfaces to the leaf tips and growing edges. The mode of action is by inhibition of mitochondrial respiration in fungi. It inhibits spore germination, mycelial growth, and spore production.

From：jinchemical.baike.com