340 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



irrigated the damage by the leaf hoppers does not seem to produce 

 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. 

 244), one-eighth to three-sixteenths an inch long, and when 



FIG. 244. The sugarbeet leafhopper (Eutettix tenella Baker): a, adult; 6, 

 nymph; /, eggs greatly enlarged; g, sec- ion of beet stem showing fresh 

 eggs in place; h, same showing eggs ready to hatch; i, old egg scars on 

 beet stems; j, small leaf of sugar beet showing characteristic " curly- 

 leaf " condition; k, enlarged section of back of an extreme case of curly- 

 leaf showing warty condition of veins. (After Ball, U. S. Dept. Agr.) 



flying 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 

 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 



