of 
) 
" 
: 
a 
; 
te 
s 
a 
en 
5 
i 
yy 
Sn 
_the foliage. 
New York AGRICULTURAL EXPERIMENT STATION. 345 . 
Attacking the leaves.— Many of the insects described as feeding 
on the foliage of the apple, attack the pear. When these appear, 
the same remedies can be used as recommended for the apple. In 
addition to these, the leaf slug often appears in numbers sufficient 
to endanger the life of the tree. They can be easily and quickly 
checked, by dusting the trees with fine dry earth or air-slaked 
lime. We have used for this purpose an insect gun manufactured 
by Leggett & Brother, New York city. We have found it very 
effectual and convenient in the application of dry substances. 
Injury to the frwit.—The codling moth, which is so destructive 
to the fruit of the apple, is also very liable to attack the pear. 
The plum curculio and the quince curculio also injure the fruit to 
quite an extent. The same remedies can be used as described for 
other fruits. 
The Plum.—The peach and apple-tree borer injure the plum 
and can be prevented as already described. 
For the insects that injure the foliage, Paris green and water 
can be used in spray, being careful to use the mixture properly 
diluted, never stronger than one pound of the poison to 200 
gallons of water. Great care should also be taken to have the 
‘liquid kept in constant motion, so that the Paris green may be 
kept in suspension in the water; otherwise the last of the 
mixture in the tank will be double, or triple the strength of that 
first applied, and will be sure to injure the foliage. 
For combating the curculio, which is the real bugbear to the 
plum grower, the mixture mentioned above is used and phe- 
nomenal results are reported by many experimenters. Others 
have not succeeded as well, and we believe that in seasons of 
heavy rain-falls and in cases of severe attacks where the beetles 
appear in unusual numbers, jarring should be combined with the 
use of poisons, and that better results will follow. 
T'he Peach. 'The peach-tree borer is a very dangerous enemy 
of the peach, and unless careful watch is kept will entirely 
destroy an orchard before the fact of its presence is realized. 
The best remedies are the use of the knife late in autumn or 
early in the spring, and the preventive washes as recommended 
for the apple. 
For insect attacks on the foliage and fruit, the same remedies 
can be used as on the plum ; reducing the mixture to 300 gallons 
and' equal precautions should be taken to guard against injury to 
44 
