Bui. 1417, U. S. Dept. of Agriculture 



Plate I 



Fig. I. —General View of the Borders in Section B-2 



A trench is being dug in the background for the purpose of examining the root systems of 

 plants infected or dying with root rot 



Fig. 2.— Cotton Plants in a Single Row of a Border in Section B-2, 

 Showing All Stages of Wilting 



Fig. 3— Underground Parts of the Cotton Plants Shown in Figure 2 



RESULTS OF ROOT-ROT WILTING OF COTTON PLANTS AT THE 

 UNITED STATES FIELD STATION SACATON ARIZ. 



Photographed by H. F. Loomis 



