i86 DISEASES OF THE SWEET PEA 



worth a pound of cure." Yet even here, 

 the personal element is the determining 

 factor in success. Growers too often work 

 by "rule o' thumb." Some have their pet 

 theories as to causes of disease; others have 

 their remedies, favorite fungicides in- 

 tended to act as a cure all but which do not 

 often yield the promised results. Progres- 

 sive growers find it profitable to keep in 

 close touch with Plant Pathologists in the 

 various Experiment Stations. More than 

 this, every grower should develop the 

 power of keen observation, for plant dis- 

 eases are too often not detected until too 

 late. 



RESISTANT VARIETIES 



The most promising means of control is 

 the use of resistant varieties. It is true 

 that resistant varieties will encourage the 

 lazy man to neglect his seed, disregard ro- 

 tation, and overlook all sanitary methods; 



