huitlacoche - corn smut, fungus, mexican truffle in the green field. corn smut is a plant disease caused by the pathogenic fungus

agriculture bad biology breakdown cob corn corncob crop damage delicacy disease ear eat farming field filling fungal fungus galls gmo green huitlacoche leaf maize maydis medicine mexican mushroom nature organic outdoor pathogenic seed smut stem toxic truffle tumorlike tumour ustilago vegetable