>. Si SO Wy ag ot a ' ree, 
PE a > Ne, ies Ca ay a Pty ERT ee Dah we ae rane 
Hat aight 3 pW) eh 
ee y ‘ {4 
, Fie 3 
560 Report OF THE Hommourrystes OF THE 
untreated plants. All ‘these plants were given the same care 
throughout the experiment and therefore the different classes 
were kept in close proximity to each other, thus favoring the 
spread of the disease to the healthy plants, for in order to show 
the comparative values of the different treatments, no diseased 
foliage was removed from any of the plants after the experiment. 
was well under way. Under these conditions the diseased foliage . 
was continually spreading the disease to the treated as well as the 
untreated plants, and probably it is on this account that the — 
disease gained a foothold on every plant. Florists and gardeners 
could easily avoid this source of the disease by removing the 
diseased foliage, but this alone will not suffice to keep the disease 
in check, when it has once gained entrance to the plants, and it 
is advocated only in connection with the use of the fungicides, 
either Bordeaux mixture or ammoniacal solution of copper 
carbonate. 

{ 
