. Fig- 29. Estimated percentage of loss from stem rust of barley, 1922. Leaf rust caused by Puccinia simplex (Koern.) Erikss. & Henn. Leaf rust of barley was reported to the Survey in I922 from Connecticut, New York, Delaware, Maryland, Virginia, Kentucky, Georgia, Alabama, Louisiana, Indiana, Wisconsin, Iowa, and California. According to G. R. Bisby, the rust was collected for the first time in Manitoba, Summary by E. B. Mains: "The leaf rust of barley is apparently only severe locally. It was found attacking barley fairly heavily at Experiment, Georgia; Blacksburg, Virginia; Lexingt
. Fig- 29. Estimated percentage of loss from stem rust of barley, 1922. Leaf rust caused by Puccinia simplex (Koern.) Erikss. & Henn. Leaf rust of barley was reported to the Survey in I922 from Connecticut, New York, Delaware, Maryland, Virginia, Kentucky, Georgia, Alabama, Louisiana, Indiana, Wisconsin, Iowa, and California. According to G. R. Bisby, the rust was collected for the first time in Manitoba, Summary by E. B. Mains: "The leaf rust of barley is apparently only severe locally. It was found attacking barley fairly heavily at Experiment, Georgia; Blacksburg, Virginia; Lexington, Kentucky; and to some- what less extent at V/ashington, D. C. It probably caused a moder- ate reduction in yield at these places, but the average for the country is undoubtedly very slight. "We have this spring successfully repeated Tranzschel's work carried out in Russia in 1914> infecting 3tar-of-Bethlehem, Ornithofialum umbellatum, with the rust, producing the aecial stage (l) both in the greenhouse and in the field. This connection may be of importance in regions like southern Indiana, where Star-of-Bethlehem has escaped and become a serious weed, if winter barley should become widely grown* At least it should be called to the attention of pathologists as a dangerous neighbor in barley ; Literature cited; (1) Mains, E. B. and H. S, Jackson. Aecial stages of the leaf rust of barley, Puccinia simplex, and of rye, P. dispersa, in the United States* (Abstract) Phytopath. 13: 49. Jan. 1923. Stripe rust caused by Puccinia filumarum (Schm.) Erikss. & Henn. (See wheat page 220).
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