208 



SCHOOL ENTOMOLOGY 



The walls and roof of the poultry house should be brushed 

 clean of all dust and filth. The litter and nests should be 

 kept clean and fresh. Clean the house, scraping the roosts, 

 dropping boards and floors clean, and then spray with 10 

 per cent kerosene emulsion, lime-sulphur mixture or with a 

 whitewash made as follows: Take six pounds of powdered 

 sulphur and eight pounds of lump lime and place in a 



FIG. 148. The chicken mite (Dermanyssus gallina). (U. S. Dept. 



Agr.) 



a, adult; 6, tarsus; c, mouth-parts; d and e, young all enlarged. 



wooden tub. Add enough boiling water to slake and keep 

 the lime from burning and stir continually until cool. 

 Add more boiling water to make a whitewash. To every 

 gallon of whitewash add one pound of table salt and four 

 ounces of creolin. Another application should be made in 

 four or five days to kill any mites which may hatch. 



Another common mite is the one which causes "scaly 

 leg" and which attacks the feet, legs, comb and neck of 



