+ In mixed plantings with apple, if Pear Psylla is not the 
chief insect pest follow the same general spray schedule as 
for apple. 
tt This spray may be omitted, if Pear Scab and Pear Midge are 
absent. 
ttt This spray may be omitted if Psylla infestation is very light. 
Caution— As arsenical sprays are po sonous to humans and warm- 
blooded animals, care should be taken to prevent it f.om 
coming in contact with leafy vegetables in nearby gardens or 
in any way being ingested. 
DDT SPRAY 
For certain insects that cause heavy damage to orchards, we 
have found Gerasol AK 50 a most effective and economical 
insecticide. It is recommended for grape leafhopper, grape berry 
moth, rose chafer on grapes, citrus thrips, gypsy moth, tent 
caterpillars, bud worms, leafrollers on fruit trees, codling moth 
on walnuts, apples and pears and oriental fruit moth on peaches 
and quinces. It is a product of the “Originators of DDT 
Insecticides.” For details, also the mame of the dealer in your 
locality, write to the following address: 
GEIGY COMPANY, INC. 
89 Barclay Street 
New York 8, New York 
(Please Make Mention of Henry Leuthardt Nursery.) 
Pruning ai Time of 
Planting 
The great majority of people do not take proper care of their 
trees after they are set in the ground. This is a great mistake. If 
a tree does not receive the right kind of care, and enough of it 
when young, it will never attain a perfect shape and healthy old 
age. The top of the tree is pruned to restore a near balance between 
the crown and root area. Pruning gives the tree the proper frame- 
work for future development. 
When pruning small limbs, make the cut slightly above the 
bud, in a diagonal position to ‘shed rain. Also, avoid cut too far 
from bud or too close to bud or on the bud. 
PRUNING APPLES - PEARS - PLUMS - APRICOTS 
These varieties require little pruning when young. Fruit trees 
that are pruned too much when young are usually late in coming 
into bearing. All of the pruning that such plants need is the 
removal of branches that are too close together for the development 
of a well-balanced top. A slingshot crotch at the top of the tree 
should be eliminated to prevent tree from splitting—remove weaker 
branch, the trunk which continues is shortened by about 1/3. The 
lateral branches are shortened only where necessary to give the 
tree a balanced pleasant shape. 
Where there is a whorl, remove branches to make a single 
dominant leader which becomes the new trunk. 
The remaining branches are equally spaced up and down and 
‘ around the trunk. They make wide angles with the trunk which 
will develop strong crotches. 
Also, where there is an oversized branch or bruised branch 
which gives the tree a one-sided appearance, cut them back to the 
size of the other branches. 
[41] 
