308 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



the same trouble. Similar injury has been noted in parts of 

 Oregon, but not of so serious a nature. 



The beet-leafhopper is a pale yellowish-green species (Fig. 

 259), one-eighth to three-sixteenths inch long, and when fly- 

 ing appears almost white, so that it is sometimes locally called 

 the " white fly." 



Life History. The hibernating habits of the adults and their 

 food-plants in the spring have not been well determined. They 



FIG. 260. "Hopperette" designed for collecting leafhoppers. (After G. C. 

 Davis, Mich. Agr. Exp. Sta.) 



appear in the beet-fields late in June and lay their eggs in the 

 leaf-stems, the eggs hatching in about two weeks. The young 

 nymphs appear in July and are very active, being first found in the 

 unfolding leaves at the centre and later spreading to all parts 

 of the plant. The nymphs are variously colored, but the com- 

 monest form is a pale creamy color with a brown saddle on the 



