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blight

(Encyclopedia) blight, general term for any sudden and severe plant disease or for the agent that causes it. The term is now applied chiefly to diseases caused by bacteria (e.g., bean blights and…

chestnut

(Encyclopedia) chestnut, name for any species of the genus Castanea, deciduous trees of the family Fagaceae (beech or oak family) widely distributed in the Northern Hemisphere. They are characterized…

diseases of plants

(Encyclopedia) diseases of plants. Most plant diseases are caused by fungi, bacteria, and viruses. Although the term disease is usually used only for the destruction of live plants, the action of dry…

Fungi

(Encyclopedia) FungiFungifŭnˈjī [key], kingdom of heterotrophic single-celled, multinucleated, or multicellular organisms, including yeasts, molds, and mushrooms. The organisms live as parasites,…