39 



cluced $17,000 of roses annuall}' reduced its output, for a few 

 years, to about $2,000 or $3,000, due to the disastrous results of 



Fig. 10. — Root gall of rose. 



eel worms. Other instances could be cited where rose growers 

 have been almost forced out of business by the pests. In some 

 establishments, where unusual care has been taken, the houses 

 have never become infested with these worms. For remedies con- 

 sult " Tomatoes," etc. 



Carnations. 

 Mt'st (^Uromyces caryophyUinus^ (Schrank) Schrt.). 

 This fungous parasite, which is familiar to ever}' one who grows 

 carnations, is not dreaded so much as when it first made its appear- 

 ance some years ago. It is decidedly less prevalent at the present 

 time, hy reason, perhaps, of less susceptible varieties being grown, 

 and also because carnation growers have become more familiar 

 with the conditions which succeed in reducing the rust. The 

 practice of subirrigation and liming the foliage, together with 

 attention to moisture conditions, have been responsible for a 

 diminishing number of rusty plants. Spraying experiments have 

 never proven satisfactory for the carnation rust, and the best and 

 most rational remedies, here as elsewhere, consist in paying atten- 

 tion to cultural conditions. 



Stem Rots (Fusarium Rhizoctonia). 

 There are at least two distinct types of stem rot caused by the 

 above-mentioned fungi. These rots constitute perhaps the worst 

 features which carnation growers have to contend with at the 

 present time. The rot caused by the sterile Rhizoctonia can be 

 controlled by sterilizing the soil, and that caused by Fusarium, in 

 all probability, cannot be contrplled by this method. Neither can 



