plant disease
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| Noun | 1. |  plant disease - a disease that affects plants blight - any plant disease resulting in withering without rotting leaf disease - any plant disease localized in the foliage rust - a plant disease that produces a reddish-brown discoloration of leaves and stems; caused by various rust fungi blackheart - any of various diseases in which the central tissues blacken black knot - disease of plum and cherry trees characterized by black excrescences on the branches black rot - a fungous disease causing darkening and decay of the leaves of fruits and vegetables black spot - any of several fungous diseases of plants that produce small black spots on the plant bottom rot - fungous disease of lettuce that first rots lower leaves and spreads upward brown rot - any of certain fungous diseases of plants characterized by browning and decay of tissues gummosis - pathological production of gummy exudates in citrus and various stone-fruit trees canker - a fungal disease of woody plants that causes localized damage to the bark cotton ball - a fungus disease of cranberries crown gall - a bacterial disease of plants (especially pome and stone fruits and grapes and roses) which forms excrescences on the stem near the ground crown wart - a fungous disease of alfalfa which forms white excrescences at the base of the stem damping off - a plant disease caused by a fungus; diseased condition of seedlings in excessive moisture dieback - a disease of plants characterized by the gradual dying of the young shoots starting at the tips and progressing to the larger branches dry rot - a crumbling and drying of timber or bulbs or potatoes or fruit caused by a fungus heartrot - any plant disease in which the central part of a plant rots (especially in trees) mosaic - viral disease in solanaceous plants (tomatoes, potatoes, tobacco) resulting in mottling and often shriveling of the leaves rhizoctinia disease - disease caused by rhizoctinia or fungi of Pellicularia and Corticium pink disease - serious bark disease of many tropical crop trees (coffee, citrus, rubber); branches have a covering of pink hyphae potato wart - fungous disease causing dark warty spongy excrescences in the eyes of potato tubers root rot - disease characterized by root decay; caused by various fungi scorch - a plant disease that produces a browning or scorched appearance of plant tissues sweet-potato ring rot - disease of sweet potatoes in which roots are girdled by rings of dry rot sclerotium disease, sclerotium rot - plant disease cause by fungi of the genus Sclerotium; also one in which sclerotia are formed Dutch elm disease - disease of elms caused by a fungus ergot - a plant disease caused by the ergot fungus foot rot - plant disease in which the stem or trunk rots at the base pinkroot - a fungal disease of onions wilt, wilt disease - any plant disease characterized by drooping and shriveling; usually caused by parasites attacking the roots smut - destructive diseases of plants (especially cereal grasses) caused by fungi that produce black powdery masses of spores soft rot - mushy or slimy decay of plants caused by bacteria or fungi yellow dwarf - any of several virus diseases of plants characterized by stunting and yellowing of the leaves yellow spot - any of several fungous or viral diseases characterized by yellow spotting on the leaves |
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