How Much “Scalecide” It Takes to Spray a Tree 
This, of course, is a problem in which the an¬ 
swer depends on the size of the tree to be sprayed. 
If you have been using Lime-Sulphur and know 
how many gallons are required, you can safely esti¬ 
mate that it will take just half as many gallons of 
diluted “SCALECIDE’*. 
The New York Experiment Station Bulletin No. 
296, on page 9, states that, in orchard work, 9 gal¬ 
lons of “SCALECIDE” went as far as 17 gallons 
of Lime-Sulphur. 
One year old trees will require one-half pint 
or less. Some very old and very large apple-trees 
will require as much as 10 or 15 gallons, but the 
finer the nozzle and the greater the pressure, the 
less material will be required to do the work; but 
whatever you may require, whether for one tree or 
100,000 trees, “SCALECIDE” is the cheapest and 
the most reliable spray you can use. 
ALL SOFT BODIED SUCKING INSECTS 
are absolutely controlled by “SCALECIDE.” In 
this class are found the San Jose and Cottony Maple 
Scale, the Oyster Shell and Scurfy Scale, Howard 
and Terrapin Scale, Pear Psylla, White Fly, Aphis, 
Lice, etc., etc. All these insects are killed by cover¬ 
ing with a thin oily coating, closing their breathing 
apparatus and killing by suffocation or by penetra¬ 
tion beneath their scaly covering, and what is said 
of San Jose Scale will apply to any of them. 
SCURFY SCALE 
a. Twig showing female scale, c. Female. 
b. Twig showing male. d. Male scale enlarged. 
U. S. Dept. Agr. 
OYSTER SHELL BARK LOUSE 
A female with egg mass under side. 
The same seen from above. 
Twig infested. 
U. S. Dept. Agr. 
12 
