File:Diseases of cereal and forage crops in the United States in 1922 (1923) (20345267203).jpg

Title: Diseases of cereal and forage crops in the United States in 1922
Identifier: diseasesofcereal27hask (find matches)
Year: 1923 (1920s)
Authors: Haskell, Royal J. (Royal Joyslin), 1890-1958; Wood, Jessie I; United States. Plant Disease Survey
Subjects: Grain Diseases and pests United States; Forage plants Diseases and pests United States
Publisher: (Washington, D. C. ) : Plant Disease Survey, Bureau of Plant Industry, United States Department of Agriculture
Contributing Library: U.S. Department of Agriculture, National Agricultural Library
Digitizing Sponsor: U.S. Department of Agriculture, National Agricultural Library

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193 V/HEAT - Leaf rust "Tho leaf rust of wheat, Pucoinia triticina, h^s been unusually severe this year throughout most of the eastern United Gu tes. The rust has been heavier over a wider area than in any year since investigations were started in 1918. In addit ion to the territory covered v/ith heavy de- velopment of leaf rust last year, vvhich coraprised North Carolina and Tennessee t-o Kansas northv/ard, the Southern states have suffered considerably, especially Georgia and South Carolina. "Observations since I918 would indicate that the terri- tory included in a strip running from Maryland and IJorth Carolina westward through southern Ohio, Indiana, Kentucky, Tennessee and Kansas, is apparently rather uniformly subject to heavy annual epidemics of leaf rust, the territory to both the south and north escaping some years with only a moderate or light epidemic." A summary of the reports of Plant Disease ^iurvey collaborators shows that leaf rust was especially severe in 1922* It was rated as more prevalent than in 1921 in Kev/ York, Virginia, V/est Virginia, South Carolina, Georgia, Indiana, Illinois, Kansas, and Minnesota, and it will be recalled that I92I was a bad year for leaf rust throughout central eastern United States. Tcie following states list leaf rust as being the most important disease of v/heat in 1922: New York, Delaware, i.laryland, Virginia, v.-est Virginia, South Carolina, Indiana, Illinois, Tennessee, Mississippi, Oklahoma, and Arkansas. The states of Pennsylvania, Georgia, Ohio, Visconsin, and North Dakota report leaf rust as being the second disease in importance.
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Pig. 22. Estimated losses from leaf rust of wheat, 1922, The accornpanying map shows the estimated reduction in yield from leaf rust

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