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Control of Johnsongrass (Sorghum halepense L. Pers.) in Ohio by Herbicides and Cultural Practices

Published online by Cambridge University Press:  12 June 2017

E. O. Burt  and
C. J. Willard
E. O. Burt
Affiliation:
Florida Agricultural Experiment Station, Gainesville, Florida
C. J. Willard
Affiliation:
The Ohio State University, Columbus 10, Ohio
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Extract

On rich alluvial soils where corn is the principal crop, Johnsongrass is the most serious perennial weed in Ohio at least as far north as the 40th parallel, and it has spread rapidly north of that area, even into southeastern Michigan. Many people still credit the statements of Piper (3), Vinall (6), and Bennett (1) that Johnsongrass behaves as an annual north of the 38th parallel. Pammel and King (2), to be sure, reported Johnsongrass as a perennial weed in southwestern Iowa in 1919 and the junior author's experience with it as a weed in Ohio, from the 40th parellel south, began in 1918. At Columbus these infestations have lived through winters in which the temperature was below 0° F for prolonged periods and the ground was frozen to a depth of 6 to 8 inches. There seems to be no hope for the eradication of Johnsongrass by mere freezing.

Type
Research Article
Information
Weeds , Volume 7 , Issue 2 , April 1959 , pp. 162 - 166
Copyright
Copyright © 1959 Weed Science Society of America 

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References

Literature Cited

1. Bennett, Hugh W. Johnsongrass, carpetgrass and other grasses for the humid South. Chapter 31 in “Forages”, edited by Hughes, H. D., Heath, M. E. and Metcalfe, D. S., The Iowa State College Press, Ames, Iowa. 1951.Google Scholar
2. Pammel, J. H., and King, C. M. Johnsongrass as a weed in Southwestern Iowa. Iowa Agr. Exp. Sta. Cir. 25. 1919.Google Scholar
3. Piper, C. V. Forage plants and their culture. Rev. Ed. The Macmillan Co., New York. p. 338. 1924.Google Scholar
4. Ryder, Gordon J., and Willard, C. J. You can control Johnsongrass. Ohio Agr. Ext. Ser. Bull. 342, rev. 1956.Google Scholar
5. Shaw, W. C. An efficient sprayer for the application of chemical sprays to experimental field plots. Agron. Jour. 42:158–160. 1950.CrossRefGoogle Scholar
6. Vinall, H. N. Johnsongrass: Its production for hay and pasturage. U. S. Dept. Agr. Farmers' Bull. 1746. 1926.Google Scholar