New York Agricultural Experiment Station. 495 



Before tiie plants are brought in in the fall the house should 

 be thoroughly fumigated with sulphur. 



Stud}' carefully the greenhouse management of those growers 

 who af'e able to control rust without the use of fungicides, and 

 duplicate their methods as nearly as may be possible, giving 

 special attention to the method of watering. 



I wish here to thank those florists and others who have in 

 various ways so kindly helped me in this work. In correspon- 

 dence and conversation florists have at all times freely given me 

 information. I am especially indebted to Fred Dorner & Son 

 of Lafayette, Ind., who furnished the i>lants used in the experi- 

 ments. 



