The Chinch Bug and Its Control. 21 
Soap LIQuiD. 
> 
This soap, like all other hard soaps, will take time to dissolve per- 
fectly for use in making the spray emulsion. Therefore enough 
should be dissolved in advance of need to make up all the stock 
emulsion required for the season’s work. This soap liquid may be 
made by dissolving the required amount of soap in three times its 
weight of hot water. It should be kept in tightly covered barrels 
or grain cans. 
NICOTINE SULPHATE. 
This product is a highly concentrated tobacco extract, containing 
40 per cent of the pure form of nicotine. It may be purchased at 
seed stores, drug stores, or of the manufacturers. 
SPRAY FORMULA. 
Either the following spray mixture or its modification will give ex- 
cellent results if properly applied. Spraying may be followed by a 
slight amount of injury, but the wheat will recover from these ap- 
parent ill effects in a week or 10 days, and where the spraying is fully 
warranted will be as nothing compared with the damage the bugs 
would have done. 
ID OPA UTS Gill 2 ea ees ee ee pounds. 8 
MOPED) SECON UGG Loe he eee ea ee dgee eG 
VDI) Dos SS DS et Ta eR SS ee ESE Pints. 0 
NicoLine: sulphates (40 per’ cent) ==) 2s pound__ # 
ONSEN VCE ATIRES CJ eg) 0 116 Re i a Om pounds__ 3 
To be mixed with sufficient water to make 100 gallons of spray. 
DIRECTIONS FOR PREPARING STOCK EMULSION. 
Place the oil and soap liquid in the mixer, and stir until they are 
thoroughly mixed and of uniform color throughout, then add the 
water and continue the stirring. A creamy emulsion will quickly re- 
sult, but the stirring should be continued for 15 or 20 minutes, oeca-— 
sionally reversing the direction of the dash, to insure thorough mix- 
ture. When the batch is completed it may at once be stored in air- 
tight barrels for future use. It will keep for months if the air is 
completely excluded. The stock emulsion should be made without 
heat, thus saving time and annoyance besides obtaining a preparation 
with good keeping qualities. It must be very thoroughly churned or 
stirred, so that the oil and soap will be evenly divided into fine par- 
ticles and thoroughly incorporated with each other. 
DIRECTIONS FOR DILUTING. 
For use, first churn again thoroughly, then add water, a gallon at a 
time, churning after each addition, until the mixture is brought up 
to 10 gallons. Fill the spray tank about four-fifths full of water, stir 
