NEw YorK AGRICULTURAL EXPERIMENT STATION. 395 
used adds to the body of the bordeaux mixture, which permits of 
a heavy coating of the trees. It should prove of much value for 
pests like the scale, pear psylla and plant lice. 
ot Ss 91S leet tench a adler aid ai Baie ein ait octal, ah 4 gals. 
Meee OUT SC CHCA A STARE )-y ta ale tie eles Stee en we 8 Ibs. 
Bordeaux mixture with the usual poison......... 30 gals. 
Pour the kerosene into a tub or barrel and add the flour. Thor- 
oughly stir or churn the oil and flour by means of a wooden paddle 
or dasher as employed in upright churns. Now pour in small 
quantities of the bordeaux mixture, the whole being violently stirred 
or churned until the spray can be pumped through coarse nozzles. 
The remainder of the bordeaux mixture may then be added and the 
combined spray should be pumped through the spraying machine 
with the usual nozzles attached until the flour is free from lumps 
and is evenly distributed. The prepared spray, when well made, 
is smooth, easily atomized and does not clog the nozzles. During 
spraying operations, the mixture should be continuously agitated 
to maintain an even distribution of the ingredients. If the spray 
is allowed to separate into layers, injuries to foliage may follow. 
This formula contains 10 per ct. of oil. If it is desired to try a 
higher percentage, use the oil in the proportions of one gallon of 
oil to at least two pounds of flour. Twice the amount of flour 
given in the formula may be used, which makes a wash that will 
heavily coat the trees. The cheapest flour that we have been able 
to buy at Geneva costs $1.80 per cwt. This wash has proven very 
satisfactory for summer treatment of the San José scale and apple 
lice. Orchardists experimenting with this spray are asked to re- 
port their results on treating trees in foliage for such pests as scales, 
plant lice, pear psylla, etc. We are indebted to Prof. W. S. Macoun, 
of Central Experimental Farm, Ottawa, for the suggestion of the 
use of flour as a carrier of oil in the bordeaux mixture. 
PROPRIETARY MISCIBLE .OILS, 
These are commercial insecticides and have proprietary names 
such as Kil-o-Scale, Scalecide, Target-Brand Scale Destroyer, etc. 
The important ingredients in the more efficient of these prepara- 
tions are oils which have been combined with some emulsifying 
agent to facilitate a uniform dilution with water. The cost of the 
miscible oils is from 50 cents to $1.25 a gallon, depending on the 
quantity purchased. While more costly, they are the most con- 
venient of scale remedies to prepare for use, as all that is demanded 
