FUNGOUS DISEASES OF THE CAENATIOK. 331 



Wlien the cuttings are made, dip them in a solution 

 of liver of sulpliur (one ounce to three gallons), and 

 root them in clean sand at a low temperature (48 or 50 

 degrees). Before potting off, spray them in the cutting 

 bed with a solution of copper sulphate, using a fine 

 spray that will cover both sides of all the leaves. If the 

 disease is troublesome, it will be well to repeat the appli- 

 cation every two weeks throughout the year, until the 

 plants are thrown out. If one's stock has been free from 

 rust it will only be necessary to watch it carefully and 

 on the first appearance of the jJustules to pick off and 

 burn the infected leaves and thoroughly spray the plants, 

 keeping it up at intervals, as above, until the disease has 

 been checked. 



The carnation has a leaf that will withstand the use 

 of a much stronger application of copper sulphate than 

 most other plants, and while we have kept the disease 

 in check with a solution of one part of the copper sul- 

 phate in one thousand parts of water, if the disease has 

 obtained a firm hold, it will be well to double the strength 

 of the solution. 



If the plants are grown on solid benches during the 

 summer, and are thus saved the shock of transplanting, 

 the chances of the appearance of the disease will be 

 lessened. The fungicides can at best only prevent the 

 spread of the disease, and if a plant is found to be badly 

 diseased, it should be destroyed, and the diseased leaves 

 removed from the others as soon as the pustules show.. 



SPOT OR BLIGHT OF CAEISTATION'S. 



{^Septoria dimithi Desm.) 



Like many of the other fungous diseases of plants, 

 the nature of this disease is not generally understood, 

 and, although it is beoominof quite commonly distributed, 

 its presence is not recognized by florists. The spots are 

 generally of a circular form, except when upon the edges 



