90 



eighth day a few hoppers were found dead clinging to the tops of grain 

 and alfalfa, and on the eleventh day they were dying rapidly over an 

 area nearly a half mile in extent in the direction of the running water 

 m the irrigating ditches. At the time of my visit the hoppers seemed 

 to be dying rather slowly. I estimated, after considerable counting, 

 that there was an average of 4 or 5 dead hoppers and three or four 

 times that number of living ones to a square yard in Mr. Miller's fields 

 where the disease was most prevalent. An interesting feature of the 

 disease in Mr. Miller's fields was that for a considerable distance from 

 the point of infection nearly all the hoppers were dying on the ground, 

 only an occasional one being found clinging to the top of a plant, while 

 from a quarter to a half mile from this point nearly all were dying on 

 the tops of plants. It was noticed, also, that most of the dead hoppers 

 were along irrigating ditches or upon low, moist ground. They were 

 also abundant about hayricks, where they accumulated in great numbers 

 when the alfalfa was being gathered. They could be seen clinging to 

 protruding straws to the very tops of the ricks. The progress of the 

 disease was watched quite carefully upon Mr. Millers place through 

 the remainder of the grasshopper season. The hoppers died slowly to 

 the last, but continued abundant, though they must have been greatly 

 reduced by the disease. Mr. Miller affirms that they were not half as 

 abundant a few days after the disease began taking them as they were 

 before it appeared. Longmont, Colo., was twice visited, where the 

 writer was shown every courtesy, and was driven to many farms, where 

 the disease was spreading, by Mr. J. B. Adams, a successful farmer and 

 bee keeper, who had introduced the disease on his place. Mr. Adams 

 had followed my advice in introducing the disease, which was to crush 

 the dead and diseased hoppers in a liberal quantity of water and to 

 sprinkle this upon the living hoppers and their food plants about the 

 borders of his fields in the evening when they were accumulating upon 

 the tops of the plants for the night. When I visited Mr. Adams's place 

 August 30 the hoppers seemed to be dying rapidly about those fields 

 where the infection was introduced. A great many were seen in a dying 

 condition. .Near the border of one field a square yard was marked oil' 

 at random aud 52 dead or dying hoppers counted upon it. In these 

 fields no hoppers could be found dying or dead upon the tops of the 

 plants. A mile distant dead hoppers clinging to the tops of plants 

 were found common, but not nearly as abundant as in Mr. Adams's 

 fields. About 5 or 6 miles distant from Mr. Adams's place we came into 

 a locality where dead hoppers were abundant, especially along ditch 

 banks, clinging to the tops of plants. 



In this locality we could not find that the disease had been intro- 

 duced artificially by anyone. 



Brighton was also twice visited, where everyone seemed more than 

 willing to offer such assistance as he could in the investigation of the 

 work of the disease. Mr. George E. Lee accompanied me to Judge 





