. Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm. nt Station, 1915, p. 21.) poisoning of the domestic animals and man. Extensive outbreaks ofergotism have occurred in the United States. In the Baltic provinces ofGermany and Russia, the peasants frequently eat bread made out offlour in which ergot spurs have been ground. They suffer from gangrenousaffections of the extremities with a loss of the hair, teeth and finger nervous form of ergotism has also been prevalent. Cattle eating ergotedgrain show similar gangrenous an
. Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm. nt Station, 1915, p. 21.) poisoning of the domestic animals and man. Extensive outbreaks ofergotism have occurred in the United States. In the Baltic provinces ofGermany and Russia, the peasants frequently eat bread made out offlour in which ergot spurs have been ground. They suffer from gangrenousaffections of the extremities with a loss of the hair, teeth and finger nervous form of ergotism has also been prevalent. Cattle eating ergotedgrain show similar gangrenous and nervous symptoms, the loss of hoofs,tails and horns. Ergot can be controlled to some extent by the selection 30 PASTORAL AND AGRICULTURAL BOTANY of the grain seed and the removal of ail ergoted masses, when detectedin the fields. A closely related species, Claviceps microcephala, was submitted tothe writer by the late Dr. Leonard Pearson on red-top hay in 1902, whichhad been responsible for gangrenous affection of a herd of cattle at Scran-ton, Pennsylvania. Claviceps paspali, found on grains of Pas pal urn in. ¥u,. 8.— !> all Ao. 2. This picture shows animal m stage oi excitement duringwhich it cannot remain on its feet. Note pectiHar expression of eyes, also the chinresting on the ground to help maintain position. All that was necessary to cause theanimal to assume this position was to clap the hands and jump toward it. The nervousparoxysm would immediately come on and last one or two minutes. {After Brown,H. B. and Ranck, E. M.: Forage poisoning due to Claviceps Paspali on Bulletin No. 6, Mississippi Agricultural Experiment Station, 1915, p. 22.) Maryland on P. Iceve, according to J. B, S. Norton, is responsible for thepoisoning of cattle in Maryland and Mississippi (Figs. 7, 8, 9, 10). S3miptoms.—The detailed symptoms, as gathered from various sources,are the following: Symptoms referable to the digestive tract such asnausea vomiting, colic, dia
Size: 1828px × 1367px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., book, bookcentury1900, bookdecade1920, booksubjectpoisonousplants
