38 CUMBERLAND VALLEY NURSERIES, INC. 
: 
vestment will fail. Cover crops planted in the or- 
chard and turned under with the plow at the right 
time will give both feed and humus to the soil; and 
thorough cultivation, intelligent fertilization, careful 
pruring and seasonable spraying will give abundant 
returns for money. labor, and time so expended. To 
have good things for home requires thought and ef- 
fort in all things, and trees and plants are no excep- 
tions. 
These suggestions are only brief, their purpose be- 
ing to impress on the home planter that good care 
and cultivation is necessary in order to secure best 
results, whether this be in the orchard or the grounds 
around the home. We shall at any time be glad to 
give instructions which may be needed for special 
planting and to help in ary way possible to make a 
success of the trees and plants you purchase from us. 
Special bulletin on the care and cultivation of trees 
and plants will be sent upon request. 
Number of Trees Per Acre. 
The number of trees to be planted per acre varies 
somewhat with the soil ard variety to be planted. 
Trees or plants on ceep rich soil require more dis- 
tance than on light poor soil. The following dis- 
tances are usually recommended for average soils: 
Apple—35x85 feet—35 trees per acre. 
Pear-Peach—20x20 feet—108 trees per acre. 
Plum-Cherry and Apricot—18x18 feet—134 
trees per acre. 
Figs—15x15 feet—193 trees per acre. 
Pecan—40x40 feet—27 trees per acre. 
Grape—8x10 feet—545 vines per acre. 
Blackberry and Dewberry—3x8 feet—1,815 
vines per acre. 
To ascertain number of plants required per acre, 
divide the rumber of square feet in an acre (43,560) 
by the number of square feet to be given each plant. 
For instance, apple 35x35 feet requires 1225 square 
feet per tree or 35 trees per acre. 
CONTROL OF INSECTS AND DISEASE. 
With the passing of each year, the necessity for 
spraying for insects and diseases which do damage 
to trees and plants becomes apparent, and while it is 
not always possible for the home owner to identify 
certain insects and diseases, there are many which 
are very common and which are easily controlled. 
Where identification is not possible, samples may be 
sent to your state entomologist, where dependable 
advice will be gladly given. As suggested above, 
mary of the common insects and diseases may be 
easily controlled by the home planter if he will take 
the trouble to equip himself with simple spray pumps 
and common insecticides for spraying, and with a few 
simple tools with which to do proper pruning. This 
material can usually be purchased from your local 
dealers or merchants, or can be ordered from various 
dependable sources. 
Insects are usually diviced into two classes, the 
“biting ard chewing” and “sucking” insects. The 
first may be controlled with poison when it is possi- 
ble to so spray that the rover will be eaten, while 
the other can be controlled by what is termed contact 
sprays. | 
