342 INSECTS AND BIRDS 



see any germs, perhaps, but you can see thousands of tiny 

 hairs to which germs can cling. When flies come from 

 stables and outhouses, these hairs may be literally covered 

 with dangerous germs ; and these may multiply rapidly if 

 allowed to reach suitable food, like milk. 



The house fly is one of those insects requiring special 

 treatment. A knowledge of the methods by which it se- 

 cures its food is of little value. No one would begrudge 

 the little it eats. We must do two things to control flies: 



SHOT-HOLE BORER. 



Above is the insect natural size and below, some of its ravages on 

 peach bark. 



(1) keep them from hatching, so far as we can ; and 



(2) keep those which have hatched away from human 

 food. 



Farm homes should have substantial window screens 

 and fly doors in an excellent state of repair. The com- 

 mon adjustable screen, selling for about thirty-five cents, 

 is easily bent or warped, and hence useless. Permanent 

 screens, to last season after season, ought to be fixed in all 

 the main windows of the house. It is an investment that 



