disease - an impairment of health or a condition of abnormal functioning

blight - any plant disease resulting in withering without rotting

leaf disease - any plant disease localized in the foliage

rust - a reddish-brown discoloration of leaves and stems caused by a rust fungus

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

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