42 
a dredger. If the dredger be used, syringe the 
plants over with a little water, and apply it to every 
part affected. The sulphur should not be applied 
to the young foliage whilst the sun is powerful, or 
it will sometimes be injurious ; no harm will result 
from applying it in the evening, and it may remain 
on for a day or two, when it should be syringed off. 
The quantity used has been from two-and-a-half to 
three ounces to the gallon of water. The plants 
affected are syringed or well wetted with the mix- 
ture, and if the shoots are at all tender, they must 
be syringed over with clear water in a few hours 
afterwards. One or two applications, in most in- 
stances, will be sufficient, but when the disease has 
been allowed to establish itself, it must be applied 
weekly until it is cured. Various nostrums are 
frequently advertised and recommended for this 
disease, but I should advise all to be cautious what 
they apply to their Roses, for the remedy will 
oftentimes prove worse than the disease. 
Red Fungus or rust, as it is sometimes called, 
seldom appears before August, or until the wood 
and foliage are pretty well matured; its consequence, 
therefore, at this season is not of much importance, 
nor is the damage at all serious. It should, how- 
ever, be prevented by the application of sulphur, 
as recommended for mildew, or freshly slaked lime 
to the parts affected will, in some instances, destroy 
it: 
Green Centres——These must be considered a 
disease, though prevalent only among certain sorts 
of Roses. Its cause may be attributed to too much 
