FAVOURITE FLOWERS 
OF 
GARDEN AND GREENHOUSE 
> 
ROSES (continued) 
Natural Order Rosace&. Genus Rosa 
For the characters of the Genus, history and descriptions of the 
cultivated kinds, together with lists of hybrids and garden varieties, the 
reader is referred to vol. i. pp. 149-164. 
The grower of Roses has to combat the attacks of 
numerous enemies, not only among insects, but the more 
insidious depredations of fungoid parasites. Among INSECTS, various 
species of Greenfly (Aphis) are most in evidence, swarming in thick 
masses round the extremity of the growing shoots, and sucking sap 
continually. This constant drain upon the tenderest portions of the 
plant has a prejudicial effect upon the character of the branches formed 
from these shoots, and an effort must be made to get rid of the pests. 
Whatever is attempted in this direction must be thorough, for the 
fecundity of the Aphis is so astonishingly great and rapid, that a single 
individual left upon a Rose-tree is sufficient to ensure a swarm round 
every shoot a day or two later. Many remedies are in use, such as 
solutions of tobacco, quassia, soft soap, and numerous patent prepara- 
tions. All these are good, but in using them care must be taken to 
thoroughly syringe the plants a few hours later with clean water, or 
the remedy will prove worse than the disease. Our own experience is 
I1.—1 
Rose Enemies. 
