PLATE 13 
A. —The effect of rootrot in a field of Johnson County White Dent in Shelby 
County, Iiid., in 1918. The stalks grew to good size but fell over before husking 
time. The soil contains considerable organic matter but was deficient in lime ana 
available phosphates. (Photograph by R. G. EastJ 
B. —A field of Stowell Evergreen Sweetcorrt affected by rootrot at Hoopeston, 
Ill., in 1919. Many stalks were barren and others had fallen over. The soil was 
black loam, high in organic matter but deficient in available phosphates. 
