4 
Colorado Agricultural College 
ever, much complaint of the disease has heen received at the Agricul¬ 
tural Experiment Station, especially of late years. 
Fig. 1. Experimental millet plots, 1917. 
Millet smut occurs most abundantly in El Paso, Phillips, Weld, 
Washington, and Yuma counties. A few reports have come from the 
western slope, stating that the disease was present in Montrose, Mesa 
and Delta counties. (Fig. 2 .) One correspondent from Montrose 
county stated that “German millet was badly smutted during the sea¬ 
son of 1917 .” A correspondent from El Paso county stated that 
“Millet smut was quite general the past season ( 1917 ), the common 
and Proso varieties being most attacked. About 25 percent of the 
Proso millet in El Paso county was smutted in 1917 . The Siberian 
millet was also smutted although, much less than the Proso.” In 
Weld county one correspondent estimated the loss to be between 25 
and 30 percent in the Proso variety. Siberian and German varieties 
were not badly attacked. One may find frequently in a field as many 
as 50 percent of the plants smutted. In the experimental plots at the 
Colorado Agricultural College the losses ran as high as 65 to 75 per¬ 
cent. A summary of the millet smut losses for the past season would 
average 6 to 7 percent of the State’s production. Obviously, this rep¬ 
resents a large loss, because affected plants are not only rendered 
worthless in grain production but are much impaired in yield of for¬ 
age as well. Losses such as these are quite unnecessary since, by the 
