612 
Journal of Agricultural Research 
Vol. XIV, No. xa 
tance in developing control measures for one of the rots of the root, stalk, 
and ear of com and for scab of wheat. As both com and wheat are such 
highly important food crops, it is imperative that the investigations 
bearing on any of these disease problems should be pushed forward with 
utmost vigor at the present time. 
While the data are as yet somewhat fragmentary, it seems evident 
that, in order to lessen the losses from these diseases on com and wheat, 
it is necessary to recognize this intercrop parasitism and develop field 
practices accordingly. In general, the use of the best-adapted, disease- 
free seed on clean soil should be practiced. The details of control 
measures for these diseases of com and wheat are as yet not worked out, 
and no simple ones are evident. A crop rotation avoiding wheat follow¬ 
ing diseased com is undoubtedly important, unless the cornstalks can 
be cut close to the ground, removed, and the remaining stubble plowed 
under before the wheat is planted. Badly scabbed wheat should not be 
used for seed. Ordinal y seed treatments will not control wheatscab; 
hence, only clean seed on carefully prepared clean soil should be used. 
