Arizona Agricultural Experiment Station 615 



Powdery mildew caused by Sphaerotheca pannosa, 

 from Bisbee. 



Sympdragon. 



Rust caused by Puccinia antirrhini, from greenhouse 

 in Tucson. 



OTHER ACTIVITIES 



During the year two scientific meetings were attended 

 without expense to the State, one at Chicago and the other 

 at El Paso. At the latter, two botanical papers were read. 

 Traveling within the State necessitated by date and cotton 

 projects and other studies amounted to about three thousand 

 miles. 



At the time the Department was organized, a preliminary 

 paper was published on date rot. In addition to this, about 

 two thousand sheets on plant diseases of Arizona have been 

 issued for the use of the farmers of the State. 



