.'30 
These animals have been the cause of great 
injury, and much inquiry for some effectual remedy. 
I have spared no pains to accomplish that object. 
I trust what I have here laid down for their eradi- 
cation will prove effectual and satisfactory. For 
their destruction the mixture No. 3 should be 
brushed over the dwarf and trained trees with a 
painter’s brush, eai'ly in the spring, when the 
Aphis makes its first appearance, which will be 
readily known by the cotton-like materials it 
produces. Should spring application be neglected, 
the operation may be repeated with safety at any 
time of the year, except when the bloom is ex- 
panded, which would be partly injured by its 
operation. If the application should be postponed 
till the insects become numerous it will be neces- 
sary to perform it at least twice in three or four 
days, as when the insects are crowded the mix- 
ture may not reach those lying underneath. In 
pei’forming the operation many will fall to the 
ground, and again ascend the tree, and therefore 
a careful repetition with the engine or the brush 
in a few days after the first, will be of essential 
service. As the insects which infest the trees at 
the back end of the year are also those which 
make their ajipearance first in the spring, the lat- 
ter end of September, or the beginning of October, 
will be a time equally proper to apply the mix- 
ture. In all cases let the mixture be so frequently 
and so carefully applied, that it may enter the 
cracks and joints of espalier rails, and of the walls 
