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make their appearance when favored by a hot and dry 
atmosphere. These are very small, scarcely distinguish- 
able by the naked eye; if isolated, they are of a dark red- 
dish brown color, found on the under side of the leaves, 
and cause the folliage to assume a yellow tinge, and soon 
make sickly the plants they infest. A few applications 
of whale soap dissolved in warm water, mixed with 
tobacco water, applied with a syringe and thrown upward 
so as to strike the underside of the leaves, will soon 
destroy them. This insect does not attack plants that 
are syringed with water daily, and all plants grown 
under glass, not in flower, should be sprinkled overhead 
with water daily. 
ROSE HOPPER. 
This is another troublesome pest with which the Rose 
is afflicted in the open ground. It is a small yellowish 
white insect about three-twentieths of an inch long, with 
transparent wings. Like the Red Spider they prey upon 
the leaves, working on the under side. They go in 
swarms, and are very destructive to the plant. As they 
jump and fly from one place to another, their destruction 
is less easy to accomplish than is the case with other 
enemies. Syringing the plants with pure water, so as to 
wet the under side of the leaf, and then dusting on pow- 
dered hellebore or tobacco dust, will destroy or disperse 
them. 
ROSE CATERPILLAR. 
These are the young moths or butterflies, varying from 
one-half to three-quarters of an inch in length. Some 
are green and yellow, others brown. They all envelop 
themselves in the leaves or burrow in the flower buds. 
Powdered hellebore will prevent in a large measure their 
moving over the plants, but the only method of killing 
