Articte [X.—Foot-rot Disease of Wheat—Historical and Biblio- 
graphic. By F. L. STEVENS. 
In April, 1919, a serious wheat disease was noted in Madison and 
other counties in Illinois; also in several counties in Indiana. Its 
most constant character is a darkening, and in severe cases a rotting, 
Fic. 1. Wheat plants from Madison County, Illinois, showing 
typical foot-rot. Three of the plants show the char- 
acteristic development of extra shocts. 
of the basal portion of the stem.* By various means—telegram, 
mimeographed letters and circulars, and public notice— the U. S. De- 
partment of Agriculture, and its agents, have announced the disease as 
almost certainly “take-all” (150) (181) (182) (183) (184) (187). 
Take-all and diseases of similar character—known also as white heads, 
* Other characters will be discussed in a later paper. 
