CURRANS’ UST OF FRUITS, 1909 10. 
3 
The Spraying of Fruit Trees. 
— -<-»» ■ 
HE importance and necessity of Spraying Fruit Trees and 
Bushes is becoming more recognised each day. That in 
order to produce good crops of best quality fruit, it is 
« 5 ) essential that Spray solutions should be used, is now an 
admitted fact. 
The practice of Spraying has not been so general in Great Britain 
as in some of our Colonies and other great Fruit-growing countries. 
Spraying in many of these places is made compulsory by law. 
Whilst, as remarked above, the need for Spraying is being better 
understood, the knowledge as to the best Spray solutions to use, is not 
so general. 
In order to assist in this latter respect, we have printed in this issue 
the formulae and method of preparation, together with their chief uses, 
of some of the most modern Spray solutions for the destruction of insects 
and mites. Whilst, in a general way, the various formulae given may be 
considered “ safe,” we would at the same time advise that a little experi- 
menting be done before using on a large scale. Local and climatic 
influences, and the slight variation that may occur in various samples of 
materials, all have their effect. 
The following table, reprinted from one of our former Fruit Lists, 
gives a good illustration of the value of Spraying. The table was com- 
piled by the Cornell Horticultural Department, from observations made 
and experiments carried out in the Apple Orchards of Orleans Country, 
U.S.A. 
THE EFFECTS OF SPRAYING ON APPLE TREES. 
Average Yield per Acre in Bushels 
No. ol 
Acres 
Not 
Sprayed 
Sprayed 
once 
Sprayed 
twice 
Sprayed 
thrice 
Per Centage 
Barreled 
381 acres 
352 .. 
7 °r ,, 
247 .. 
328 bushels 
67°/” 
74°/° 
78 f 
87°/. 
346 bushels 
374 bushels 
414 bushels 
Note how the yield increased regularly with the number of sprayings. 
That spraying has a direct influence on the income per acre is well 
demonstrated by the following figures : 
Dollars. 
449 Acres un-Sprayed, gave an average yield per Acre of 103 
316 „ once ,, „ „ „ 139 
644 „ twice ,, „ „ ,, 143 
236 ,, thrice ,, ,, ,, ,, 184 
43 „ 4 times „ „ „ „ 2i 1 
