158 



PESTS OF GARDEN AND FIELD CROPS 



Where feasible, apply arsenicals to 

 the plants attacked, or Bordeaux 

 mixture combined with arsenicals. 

 Weeds should be destroyed in the fall. 



The Banded Flea-beetle {Systena 

 tceniata Say) is similar in appear- 

 ance, though darker, and of the same 

 habits. 



r.G. 163. — The Pale-striped Flea-beetle. 

 Enlarged and natural si^e. Original. 



Fig. 164. —Work of the 

 Banded Flea-beetle. Orig- 

 inal. 



The Striped Flea-beetle {Phyllotreta vittata Fab.) 



Cabbage, turnips, and related crops are preferred by this species 

 of flea-beetle. The adults make numerous small holes in the leaves, 



and the slender, whitish larvse live in the 

 soil, feeding principally on the roots of 

 various weeds of the same family. The 

 adult is one eighth of an inch long, black, 

 each wing cover marked with a hght, 

 waving band. 



Paris green or arsenate of lead, either 



alone or in combination with Bordeaux 



mixture, may be used on turnip tops, or 



on cabbage that is not ready for market. 



On cabbage, until it is half-grown, add resin soap to the Paris green. 



After the plants are three fourths grown use repellents. 



FxG. 165. — The Striped Flea- 

 beetle. Enlarged and nat- 

 ural size. Original. 



