﻿Bui. 
  1 
  1 
  6, 
  Part 
  I, 
  Bureau 
  of 
  Entomology, 
  U. 
  S. 
  Dept. 
  of 
  Agriculture. 
  

  

  Plate 
  III. 
  

  

  Fig. 
  1.— 
  Gasoline-Engine 
  Sprayer 
  Supplying 
  Power 
  for 
  Two 
  "Trailer" 
  Leads 
  of 
  

   Hose, 
  in 
  Spraying 
  Against 
  the 
  Grape 
  Leafhopper. 
  Vineyard 
  of 
  Mr. 
  J. 
  E. 
  Beatty, 
  

   North 
  East 
  Pa. 
  (Original.) 
  

  

  Rg. 
  2.— 
  Gasoline-Engine 
  Sprayer 
  Supplying 
  Power 
  for 
  Two 
  Trailer" 
  Leads 
  of 
  

   Hose 
  in 
  Spraying 
  Against 
  the 
  Grape 
  Leafhopper. 
  Vineyard 
  of 
  the 
  Peacock- 
  

   Rood 
  Company, 
  Westfield, 
  N. 
  Y. 
  i 
  Original.) 
  

  

  SPRAYING 
  AGAINST 
  THE 
  GRAPE 
  LEAFHOPPER. 
  

  

  