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HOUSEHOLD INSECTS 



catching cockroaches as follows: "Various plans have 

 been suggested for their destruction, but the most service- 

 able method is to use a small wooden box, having a cir- 

 cular hole at the top fitted with a glass rim, out of which it 

 is impossible for them to escape. It should be nightly 



baited and the con- 

 tents thrown the 

 next morning into 

 scalding water." 



FIG. 41. Cross-section of a roach trap. In Fig. 41 a 



cross-section of 



such a trap is shown. A straight lamp chimney sus- 

 pended firmly in a hole in the middle of the cover serves 

 for the glass rim. The upper end of the chimney should 

 be set just flush with the cover. Pieces of cake, cheese, 

 or similar attractive bait may be placed in the bottom 

 of the box to lure the roaches. Inclined strips of paste- 

 board or thin boards placed against the box as shown 

 in the figure will afford easy access for the roaches to 

 the traps. When once the insects have entered such 

 a trap they cannot 

 escape. Certain ex- 

 perimenters claim to 

 have had fine success in 

 catching roaches with 

 this style of trap. 



In Fig. 42 is shown a simple style of trap. It is 

 simply a circular tin box baited with bits of material 

 attractive to roaches and provided with inclined runways 

 to make it easy for the insects to enter. A trap of this 

 kind may be made from one of the ordinary cans in which 

 coffee is often sold. One should select a deep can and use 



FIG. 42. Tin box trap for roache 



