170 ENEMIES AND DISEASES OF POULTRY 



Turpentine is a product of such trees as the pine and 

 other similar trees. It is much used in the making of 

 paints and varnishes and also in medicine. It is in- 

 flammable and will irritate the skin. 



Crcoline, a liquid manufactured especially for use as 

 an insecticide, is effective in killing the insect enemies 

 of poultry. Crecline may be used in the interior of 

 poultry houses diluted in the proportion of 3 fluid oz. 

 of creoline to 1 gal. of water. 



Carbolic acid is largely used in the destruction of 

 poultry parasites. A solution made of V/z fluid oz. of 

 carbolic acid to 1 gal. of water is strong enough for 

 this purpose. Carbolic acid is sometimes added to white- 

 wash so that sanitary conditions can be improved at 

 the same time that an insecticide is applied. When 

 used in this way, however, carbolic acid does not have 

 as effective insecticidal properties as when it is used 

 without whitewash. 



Milk emulsion is usually first made up in a concen- 

 trated or stock solution, or cream solution as it is 

 sometimes called, and then diluted just before it is 

 applied. To make the stock solution, add 2 gal. of 

 kerosene to 1 gal. of milk and churn or mix thoroughly 

 with a force pump or other agitator. This stock solution 

 should be diluted in the proportion of 1 gal. of the stock 

 solution to 4 gal. of warm water. Crude petroleum, 

 benzine, gasoline., or turpentine may be substituted for 

 kerosene in this formula. Kerosene, however, can usu- 

 ally be purchased cheaper than the other liquids except 

 crude petroleum. 



Soap emulsion is also usually first made up in a stock 

 solution and then diluted just before it is to be applied. 

 To make a stock solution of soap emulsion, dissolve 1 Ib. 

 of hard soap in 1 gal. of hot water; when the soap has 

 all dissolved and while the solution is hot, add 2 gal. 

 of kerosene; mix thoroughly with a force pump or an 

 agitator of some kind. When to be used for spraying 

 the interior of poultry houses, this stock solution should 

 be diluted in the proportion of 1 gal. of the stock solution 



