Introduction 

 ** Damage usually occurring during midsummer or later. 



Damage most severe on wet alkali land or near such 

 land. Tender portion of leaf eaten, only a net- 

 work of veins remaining, which soon become dry 

 and brown. 



Look for Alkali-beetles (pages 89-90). 



Damage usually most severe at borders of field/iear 

 wild land, waste land, ditch banks and fence rows 

 where grasshoppers are numerous, or near alflafa 

 or waste land overrun with sweet clover, or near 

 grain fields. 



Look for: Grasshoppers (pages 98-109); 

 Alfalfa Loopers (pages 81- 

 84); 



Western Army Cutworms 

 (pages 41-45). 



000 Damage usually slight, only a beet leaf here and 

 there being eaten. Not confined to border, but 

 occurring throughout entire field. 



Look for : Yellow-bear Caterpillars (pages 

 86-87) ; 



Zebra Caterpillars (pages 87-88); 

 Variegated Cutworms (pages 47-48). 



D. Leaves very much curled and distorted. Veins much enlarged, 

 often bearing cone-shaped points (Figure 5, Plate VIII, Page 

 25). Root small and stunted. Rootlets abnormally de- 

 veloped (Figure 7, Page 60). Crown often covered with a 

 sticky syrup-like substance. Curly- top (pages 124-125). 



Look for Sugar Beet Leaf-hoppers (Pages 

 123-126). 



