82 Bulletin 242. 



VIII. PLANT DISEASES. 

 H. H. Whetzel. 



90. Loss from corn smut. — To determine the loss from any given 

 field to determine if it will pay to eradicate smut from corn fields. 



91. Loose sm.ut of zvheat. — Special hot water treatment of seed 

 wheat to determine to what extent smut in the succeeding crop may be 

 reduced. 



92. (a) Bean anthracnose or pod spot. — Experiments to determine 

 the value of planting clean seed as a preventive of this disease. 



(b) Spraying with Bordeaux mixture to determine its value as a 

 preventive of this disease in field practice. 



93. The feeding of copper sulphate to plants as a preventive of fun- 

 gus diseases and also as a stimulus to grozvth and production in the host. 



94. Plans for treating fungus diseases in any crop in which you are 

 interested will be prepared if possible and furnished upon application. 



