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plant pathology

(Encyclopedia)plant pathology: see diseases of plants. ...

dry rot

(Encyclopedia)dry rot, fungus disease that attacks both softwood and hardwood timber. Destruction of the cellulose causes discoloration and eventual crumbling of the wood. This frequently results in the collapse of...

Dutch elm disease

(Encyclopedia)Dutch elm disease: see diseases of plants; elm. ...

sudden oak death

(Encyclopedia)sudden oak death: see diseases of plants; water mold. ...

Bolley, Henry Luke

(Encyclopedia)Bolley, Henry Luke, 1865–1956, American plant pathologist, b. Dearborn co., Ind. He is noted for his work on organisms causing diseases of crop plants (including the discovery of the cause of potato...

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 fire blight of frui...

rust, in botany

(Encyclopedia)rust, in botany, name for various parasitic fungi of the order Uredinales and for the diseases of plants that they cause. Rusts form reddish patches of spores on the host plant. About 7,000 species ar...

mildew

(Encyclopedia)mildew, name for certain fungi and protists, for the diseases they cause in various crops, and for the discoloration (and sometimes the weakening and disintegration) they cause in such materials as le...

oats

(Encyclopedia)oats, cereal plants of the genus Avena of the family Poaceae (grass family). Most species are annuals of moist temperate regions. The early history of oats is obscure, but domestication is considered ...

fungicide

(Encyclopedia)fungicide fŭnˈjəsīdˌ, fŭngˈgə– [key], any substance used to destroy fungi. Some fungi are extremely damaging to crops (see diseases of plants), and others cause diseases in humans and other ...