It is a mixture of Mancozeb and Carbendazim. Mixture partner Mancozeb remains on the plant surface and acts by contact action (Preventive). It is fungitoxic when exposed to air, converted in to an isothiocyanate, which inactivates the sulphahydral groups of enzymes in fungi, thus, cause disturbance in fungal enzyme functioning. Other partner Carbendazim, which is having systemic activity (absorbed through roots and green tissues), acts as protective and curative. Acts by inhibiting the development of fungal germ tube, formation of appressoria and growth of mycelia.