66 ROSES 



cade to frighten the prospective beginner. 

 The diseases and the insects exist, and they 

 may at one time or another make an assault 

 on the rose garden or rose house. They are 

 not among the essentials of rose culture, but a 

 reasonable knowledge of how to identify the 

 one or the other and how to advance against 

 it is a great aid to success. As a rule, these 

 pests thrive best when the cultural conditions 

 under which the plants are growing are of the 

 worst. It is not true that they are the 

 creatures of neglect, but they are certainly the 

 fruits of neglect. 



WHEN TO SPRAY THE GARDEN ROSES AND HOW 



Dates based on an average season in New 

 York [Allow four days' difference for every 

 hundred miles of latitude]. 



Use the insecticides and fungicides at the 

 following strengths: 



Sulphide of potassium in a solution of one- 

 half ounce to one gallon of water. 



Arsenate of lead, five pounds to fifty gallons 

 of water. 



PPhale-oil soap, one pound to eight gallons 

 of water. 



