154 ENEMIES AND DISEASES OF POULTRY 



spraying insecticides but will not prove satisfactory for 

 spraying Bordeaux mixture on plants. By using spray 

 pumps to apply insecticides, a large quantity of liquid 

 is saved as compared with applying them by means 

 of a brush, and the insecticide is 

 also applied more effectively. 

 When applied in a fine spray, it 

 penetrates into the cracks and 

 crevices in the building and 

 forms an even covering over the 

 flat surfaces. 



ftfe 



KILLING OF PARASITES 



A constant watch must be kept 

 for parasites, because from the 

 moment chicks come from the 

 shell they are menaced by insect 

 FIG. 4 vermin. The most practical way 



of meeting the problem is con- 

 tinually to practice preventive measures. 



If poultry parasites are allowed to become numerous 

 they will sap the vitality of the fowls, and although the 

 parasites themselves may be gotten rid of, it will be 

 impossible to restore the physical condition of the fowls. 

 For application to poultry houses, liquid and fume in- 

 secticides are most effective, but usually liquid insecti- 

 cides are the more convenient to apply. Powder 

 insecticides are ordinarily effective on the bodies of 

 fowls, but it must be borne in mind that they will not 

 kill all classes of parasites. 



Houses that are maintained in a cleanly condition, 

 well lighted with sunlight, and free from dampness will 

 never be badly infested with parasites, if they are given 

 regular sprayings with some good liquid insecticide. 

 Nothing can take the place of sanitary conditions as a 

 preventive measure, but sanitary conditions combined 

 with regular spraying is most effective. 



Prevention of Infestation by Fowls From Other Flocks. 

 To avoid the chance of carrying parasites into a house 



