Insects and Sprays 173 



the ants are attracted by sweet juices left there by 

 plant lice. 



The house centipede hides behind flowerpots, 

 mops, and dirty rags which are stored in damp 

 places. Fresh pyrethum powder in the closets, 

 bathroom, cellar, conservatory, and other places 

 where it frequents will soon rid the house of them. 

 It feeds on cockroaches, the typhoid fever fly, and 

 other harmful insects, but it is not an agreeable 

 looking object to have around. 



To control the Hessian fly, try burning all 

 stubble and clearing all refuse from damp places. 



To destroy the small black fly which feeds on the 

 pear and cherry trees, spray the trees with arsenate 

 of lead in water, in the proportion of two pounds of 

 the poison to fifty gallons of water. If the appli- 

 cation is not made until the fruit is well under way, 

 it will be safer to use white hellebore instead of 

 arsenate of lead. 



The fly should be swatted before he becomes a 

 fly. They breed readily in manure and the manure 

 should be treated with borax, a heaping pint meas- 

 ure of borax to every eight bushels of manure. 

 The borax should be applied with a flour sifter 

 or other sieve and two or three gallons of water 



