﻿EXPERIMENTS 
  FOR 
  CONTROL. 
  

  

  33 
  

  

  stimulate 
  the 
  vines, 
  causing 
  them 
  to 
  put 
  out 
  some 
  fresh 
  foliage 
  so 
  

   that 
  the 
  loss 
  in 
  weight 
  of 
  the 
  hops 
  will 
  not 
  be 
  so 
  great 
  as 
  it 
  would 
  be 
  

   otherwise. 
  

  

  Fertilization. 
  — 
  In 
  parts 
  of 
  the 
  hopyards 
  where 
  the 
  vines 
  were 
  very 
  

   vigorous, 
  as 
  a 
  result 
  of 
  fertilization, 
  the 
  presence 
  of 
  mites 
  was 
  not 
  so 
  

   noticeable 
  as 
  in 
  parts 
  where 
  the 
  foliage 
  was 
  not 
  so 
  dense. 
  The 
  

   increase 
  of 
  mites 
  was 
  just 
  as 
  rapid, 
  however, 
  and 
  at 
  the 
  end 
  of 
  the 
  

   season 
  the 
  densely 
  foliage 
  d 
  vines 
  were 
  just 
  as 
  badly 
  injured, 
  and 
  the 
  

  

  

  Fig. 
  !).— 
  Hopvine 
  tied 
  low 
  and 
  stripped: 
  leaves 
  readily 
  sprayed. 
  (Original.) 
  

  

  hops 
  in 
  many 
  cases 
  were 
  discolored. 
  The 
  denser 
  foliage 
  gives 
  a 
  

   larger 
  surface 
  to 
  be 
  injured, 
  and 
  with 
  equal 
  infestation 
  plats 
  with 
  

   light 
  foliage 
  will 
  necessarily 
  be 
  more 
  seriously 
  injured 
  than 
  the 
  

   denser 
  ones. 
  

  

  Fertilization 
  will 
  increase 
  the 
  vigor 
  and 
  the 
  productiveness 
  of 
  the 
  

   hopvines 
  and, 
  while 
  it 
  will 
  not 
  in 
  any 
  way 
  control 
  the 
  mites, 
  it 
  should 
  

   be 
  practiced 
  on 
  general 
  principles. 
  

  

  