When to use “ Scalecide ” 
EFORE “SCALECIDE” came on the market, our Experiment Stations and 
entomologists had nothing better to offer than the old Lime-Sulphur and 
Whale Oil soap solutions, both unpleasant to use no matter at what season. 
The use of these sprays in the Fall sometimes resulted in a partial, if 
not total loss of the fruit or leaf buds, giving the impression that Fall 
spraying was harmful. 
With the introduction of soluble oils, however, this has all been 
changed as there is absolutely no danger to either fruit or leaf' buds, 
whether Fall or Spring sprayed. The New Jersey Bulletin No. 186, in 
speaking of soluble oils, says: “‘SCALECIDE’ did almost perfect work 
applied at winter strength in October. No injury of any kind was caused 
on trees or fruit buds.” 
This Bulletin, after referring to various tests of Fall and Spring work 
says: “But the interesting and important conclusion is that the wrong time 
for Spraying has been generally advised, and that instead of delaying until late Spring, our 
work, to be most effective, should be done in the late Fall, while the scale are yet active and 
before the trees are really dormant.” 
I he scale gets in its most destructive work in the Winter, as many trees apparently 
healthy in the Fall are dead in the Spring if unsprayed. 
I he old scale, while not living to breed the next season, often lives through the Winter, 
if the tree doesn’t die. The young scale, which are the breeders for another season, are 
tender and not so well protected, and are more readily destroyed by a good insecticide. 
In support of the theory that the scale does feed all Winter, cut a twig from an infested 
branch. In a few weeks the scale will all be dead, while those on the branch from which it 
was taken, will still be alive, showing that the scale cannot live if the juices of the tree are 
exhausted. 
In any event, “a badly infested tree which has maintained a good show-, 
ing throughout the season often finds itself unable to start again in the 
Spring and then the fruit-grower is likely to blame the insecticide for the 
condition. Occasionally a tree even starts from the stored material in the 
bud and when that is exhausted wilts and dies, simply because the poisoned 
bast cells will not carry the sap.”—(Prof. John B. Smith.) 
The Autumn is freer from the high winds of March and April allowing 
the spraying to be done thoroughly from all sides ip one operation. 
The ground is usually dry and firm, admitting the wagons and spray 
pumps in the orchard, which is often impossible after the Spring thaws, but 
if for any reason advantage cannot be taken of the Fall weather, you 
should have some “SCALECIDE” on hand and spray any warm day dur¬ 
ing the Winter when the spray will not freeze before drying on the trees 
No spray material should be used when the temperature is much lower 
than 40° Fahrenheit. 
Prof. John B. Smith 
Don’t spray in freezing weather. 
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