8 BULLETIN 134, U. S. DEPARTMENT OF AGRICULTURE. 



A FACTOR INFLUENCING MARKET GRADE AND MILLING 



QUALITY. 



In samples of grain obtained from millers and farmers throughout 

 the State of Virginia these galls were found in amounts varying 



Fig. 6. — Showing the comparison between heads infected with the nematode disease 

 and the stinking-smut disease of wheat. A, head infected with nematodes; B, 

 sound head ; C, head infected with stinking smut. 



from 0.1 per cent to 25 per cent. As a grading factor this is ex- 

 tremely important, as the galls must be classed as foreign material 

 and calculated as dockage if they can be removed readily from the 



