﻿THE 
  FRUIT-TREE 
  LEAF-ROLLER. 
  95 
  

  

  at 
  Canon 
  City, 
  Colo., 
  where 
  the 
  entire 
  apple 
  crop 
  was 
  absolutely 
  

   ruined 
  and 
  where 
  the 
  larvae 
  had 
  defoliated 
  the 
  trees 
  so 
  completely 
  

   that 
  not 
  a 
  green 
  leaf 
  eould 
  be 
  seen. 
  (PI. 
  XIV.) 
  At 
  Espanola, 
  

   N. 
  Mex., 
  fully 
  75 
  per 
  cent 
  of 
  the 
  fruit 
  crop 
  in 
  eertain 
  apple 
  orchards 
  

   has 
  been 
  destroyed 
  by 
  these 
  leaf-roller 
  "worms," 
  which 
  have 
  besides 
  

   caused 
  serious 
  injury 
  to 
  the 
  foliage. 
  Similar 
  conditions 
  have 
  been 
  

   seen 
  at 
  Yineland 
  and 
  Avondale, 
  Colo. 
  

  

  The 
  injury 
  to 
  pears 
  is 
  quite 
  similar 
  to 
  that 
  of 
  the 
  apple, 
  but 
  not 
  so 
  

   extensive. 
  The 
  writer, 
  in 
  talking 
  with 
  orchardists 
  at 
  Espanola, 
  

   N. 
  Mex., 
  in 
  reference 
  to 
  the 
  amount 
  of 
  injury 
  to 
  pears 
  that 
  had 
  been 
  

   sprayed 
  twice 
  with 
  arsenate 
  of 
  lead, 
  was 
  informed 
  that 
  one-fourth 
  

   to 
  one-half 
  of 
  the 
  crop 
  was 
  damaged 
  to 
  such 
  an 
  extent 
  that 
  it 
  could 
  

   not 
  be 
  packed. 
  Even 
  a 
  very 
  slight 
  feeding 
  on 
  the 
  pear 
  when 
  young 
  

   often 
  results 
  in 
  an 
  ill-formed 
  specimen 
  when 
  mature. 
  Pear 
  trees 
  

   are 
  not 
  usually 
  defoliated 
  by 
  the 
  leaf-roller, 
  even 
  if 
  not 
  sprayed. 
  

   The 
  writer 
  has, 
  however, 
  observed 
  a 
  few 
  instances 
  where 
  they 
  were 
  

   completely 
  defoliated 
  in 
  a 
  very 
  badly 
  infested 
  district. 
  

  

  In 
  case 
  of 
  stone 
  fruits, 
  such 
  as 
  plum, 
  apricot, 
  and 
  cherry, 
  much 
  of 
  

   the 
  pulp, 
  as 
  well 
  as 
  occasionally 
  a 
  part 
  of 
  the 
  stone, 
  is 
  eaten, 
  except 
  

   with 
  the 
  cherry, 
  which 
  seems 
  to 
  escape 
  injury 
  to 
  the 
  seed. 
  Cherry 
  

   and 
  plum 
  trees 
  are 
  sometimes 
  entirely 
  defoliated. 
  According 
  to 
  

   reports 
  from 
  Riverside, 
  N. 
  Mex., 
  during 
  1909 
  and 
  1910 
  the 
  entire 
  

   peach 
  crop 
  was 
  destroyed 
  by 
  this 
  pest. 
  During 
  the 
  past 
  two 
  seasons 
  

   the 
  writer 
  has 
  failed 
  to 
  find 
  a 
  single 
  instance 
  where 
  a 
  peach 
  orchard 
  

   has 
  been 
  injured 
  very 
  much. 
  The 
  nature 
  of 
  the 
  injury 
  to 
  the 
  peach 
  

   is 
  a 
  slight 
  feeding 
  on 
  the 
  surface, 
  and 
  the 
  larvae 
  seem 
  never 
  to 
  have 
  

   eaten 
  into 
  the 
  pulp 
  as 
  far 
  as 
  the 
  stone. 
  

  

  The 
  injury 
  on 
  small 
  fruits, 
  such 
  as 
  raspberries, 
  currants, 
  goose- 
  

   berries, 
  etc., 
  is 
  often 
  quite 
  serious, 
  as 
  the 
  larvae 
  not 
  only 
  feed 
  on 
  the 
  

   foliage 
  but 
  also 
  eat 
  into 
  the 
  fruits. 
  The 
  larvae 
  occasionally 
  feed 
  on 
  

   the 
  foliage 
  of 
  the 
  grape. 
  Of 
  the 
  shade 
  and 
  forest 
  trees 
  that 
  are 
  

   attacked 
  the 
  worst 
  injury 
  usually 
  results 
  on 
  the 
  elm, 
  on 
  which 
  the 
  

   leaves 
  are 
  often 
  badly 
  eaten. 
  The 
  damage 
  noticed 
  on 
  truck 
  crops, 
  oats, 
  

   wheat, 
  alfalfa, 
  and 
  red 
  clover 
  has 
  been 
  a 
  slight 
  feeding 
  on 
  the 
  leaves. 
  

   The 
  larvae, 
  however, 
  on 
  one 
  occasion 
  were 
  noticed 
  eating 
  their 
  way 
  

   into 
  the 
  tops 
  of 
  onion 
  plants 
  that 
  were 
  growing 
  between 
  rows 
  of 
  

   apple 
  trees 
  that 
  had 
  been 
  defoliated 
  by 
  this 
  species. 
  Another 
  case 
  

   at 
  the 
  same 
  place 
  was 
  noticed 
  where 
  a 
  small 
  cedar 
  tree 
  was 
  nearly 
  

   stripped 
  of 
  its 
  leaves 
  by 
  these 
  larvae, 
  and 
  the 
  tree 
  was 
  covered 
  by 
  

   webs. 
  Roses 
  are 
  seriously 
  injured 
  at 
  times, 
  as 
  the 
  larvae 
  not 
  only 
  

   feed 
  on 
  the 
  foliage 
  but 
  gnaw 
  into 
  the 
  flower 
  buds 
  and 
  prevent 
  their 
  

   proper 
  development. 
  

  

  57331°- 
  Hull. 
  110— 
  13 
  2 
  

  

  