168 ENEMIES AND DISEASES OF POULTRY 



a house of practically all the parasites that are in it. 

 Some insects such as red mites can conveniently be 

 exterminated only by the use of liquid insecticides. 

 When liquid insecticides of any kind are used as either 

 a spray or a- paint, on poultry buildings, they should be 

 allowed to soak into the wood and dry thoroughly be- 

 fore the fowls are permitted to go inside of the building. 

 Liquid insecticides of some kinds may also be applied 

 to the bodies of poultry. 



Some liquid insecticides are applied by themselves 

 without dilution or combination with any other material; 

 in the form of an emulsion with other liquids; or with 

 other materials in solution in them. A description of 

 the principal liquid insecticides in use at the present 

 time follows: 



Creosote is widely used as an insecticide. It is also 

 known in some localities as crude carbolic acid and as 

 creosote stain. Creosote is a coal-tar product. It is not 

 an expensive material and is usually sold in paint 

 stores. In large quantities it can be purchased at from 

 40c. to 50c. per gal., and in small quantities at from 80c. 

 to $1 per gal. Creosote is used for shingle stains and 

 as a wood preservative for many other kinds of wood- 

 work. If it is desired to color the inside or outside 

 of the houses to which creosote is to be applied, dry 

 paint can be added to it. Creosote is the best liquid 

 insecticide for spraying on the interior of poultry houses. 

 Two or three applications of this material will rid any 

 building or coop of insect vermin of all kinds. 



Creosote bought at different times and in different 

 places will not always be of the same viscosity or 

 thickness. When very thick it may need to be diluted 

 in the proportion of 1 part of creosote to from 3 to 4 

 parts of kerosene oil, in order to get it in the proper 

 condition for spraying. Thinner samples of creosote may 

 need to be diluted with only 2 parts of kerosene oil to 

 make it suitable for spraying. For painting roost poles 

 and nest boxes, the thinner kind of creosote is commonly 

 used without any dilution; the thicker kind is usually 



