16 BULLETIN 254, U. S. DEPARTMENT OF AGRICULTURE. 



during the heat of the day when the leafhoppers are most active and 

 jump at the least provocation. 



Where the species is infesting pastures or grass lands close pasturing 

 or cutting while it is in the egg stage is advised. Especially would 

 this prove beneficial in the Northern States where the length of the 

 egg stage covers several weeks. So far as the observations of the 

 author go it would appear useless to burn grass for the destruction 

 of the eggs, as when the leaves and stems wither or dry up the eggs 

 do not hatch. Seemingly the eggs must have the moisture of at least 

 the surrounding tissue for hatching. However, the burning of the 

 grasses in which the species may be hibernating in the Northern 

 States would no doubt destroy many of the adults. 



WASHINGTON ; GOVERNMENT PRINTING OFFICE : 1915 



