262 VINES 
down into the very heart of the flower, where it is 
impossible to get any poison. 
If any of the leaves become skeletonized, the 
rose slug is at work and will be found on the 
under side of the leaf; hence the poisons (hellebore, 
arsenate of lead, or Paris green) must be applied 
there. A little Ivory soap added to the last two, 
will help them to adhere. MHellebore should be 
dusted on when the plants are wet with dew. 
The others are used in water in following propor- 
tions: Paris green, one ounce to twelve gallons 
of water, kept stirred all the time; arsenate of 
lead, one pound to ten gallons; and Ivory soap, 
one bar to ten gallons. 
If the green fly, or aphis, is troublesome — 
some will always be found on the tips of the young 
growth — it can be destroyed with some of the 
tobacco preparations, kerosene emulsion or Gis- 
~hurst’s compound. The same remedies are used 
for the leaf hopper, whose presence can be detected 
by yellowish blotches showing on the foliage. 
The insect itself will be found only on the under 
side of the leaf, where, of course, the spray must 
be directed. 
In using poisons of any kind on the plants, 
one thing should be borne in mind: it is not 
uncommon for children to eat rose petals; in 
