﻿22 
  

  

  CIRCULAR 
  2 
  7 
  0, 
  U. 
  S. 
  DEPARTMENT 
  OF 
  AGRICULTURE 
  

  

  worms, 
  an 
  inch 
  or 
  so 
  long, 
  which 
  

   eat 
  large 
  holes 
  in 
  the 
  developing 
  

   apples 
  or 
  pears. 
  They 
  are 
  most 
  

   often 
  seen 
  during 
  May 
  and 
  June. 
  

   The 
  fruit 
  that 
  is 
  attacked 
  may 
  

   drop 
  off, 
  or 
  if 
  the 
  cavities 
  are 
  shal- 
  

   low 
  they 
  heal 
  over 
  and 
  result 
  in 
  

   russetecl 
  scars. 
  When 
  the 
  worms 
  

   are 
  f 
  ull-gi-own 
  they 
  make 
  cells 
  in 
  

   the 
  ground, 
  where 
  they 
  transform 
  

   to 
  brown 
  pupae 
  in 
  a 
  manner 
  simi- 
  

   lar 
  to 
  that 
  of 
  the 
  cutworms. 
  The 
  

   moths 
  emerge 
  late 
  in 
  the 
  fall 
  or 
  

   early 
  in 
  the 
  spring 
  and 
  lay 
  eggs 
  

   singly 
  on 
  the 
  trees. 
  Control 
  meas- 
  

   ures 
  are 
  not 
  often 
  needed, 
  as 
  the 
  

   sprays 
  applied 
  for 
  the 
  codling 
  

   moth 
  usually 
  prevent 
  the 
  fruit- 
  

   worms 
  from 
  becoming 
  very 
  in- 
  

   jurious. 
  Most 
  of 
  the 
  damage 
  is 
  

   done 
  early, 
  and 
  affected 
  fruits 
  may 
  

   often 
  be 
  thinned 
  off* 
  without 
  much 
  

   loss. 
  

  

  Eye-Spotted 
  Bud 
  Moth 
  

  

  The 
  eye-spotted 
  bud 
  moth 
  occurs 
  

   chiefly 
  in 
  Idaho, 
  eastern 
  Washing- 
  

   ton, 
  and 
  the 
  region 
  west 
  of 
  the 
  

   Cascade 
  Mountains. 
  The 
  injury 
  

   to 
  the 
  fruit, 
  which 
  is 
  caused 
  by 
  the 
  

   young, 
  consists 
  of 
  irregular 
  sur- 
  

   face 
  feeding 
  or 
  a 
  series 
  of 
  small 
  

   holes 
  in 
  the 
  skin 
  (fig. 
  28) 
  . 
  Sprays 
  

  

  Figure 
  28. 
  — 
  Holes 
  in 
  an 
  apple 
  made 
  by 
  

   larvae 
  of 
  the 
  eye-spotted 
  bud 
  moth. 
  

  

  used 
  for 
  controlling 
  the 
  codling 
  

   moth 
  on 
  apple 
  and 
  pear 
  usually 
  

   prevent 
  this 
  insect 
  from 
  becoming 
  

   a 
  serious 
  pest 
  on 
  these 
  fruits 
  (p. 
  

   3) 
  . 
  If 
  additional 
  control 
  is 
  neces- 
  

   sary, 
  lead 
  arsenate, 
  3 
  pounds 
  to 
  

   100 
  gallons, 
  may 
  be 
  added 
  to 
  the 
  

  

  pink 
  spray 
  of 
  lime-sulfur, 
  which 
  

   is 
  often 
  used 
  for 
  scab 
  or 
  mildew, 
  or 
  

   the 
  lead 
  arsenate 
  may 
  be 
  used 
  alone 
  

   at 
  this 
  time. 
  

  

  Flatheaded 
  Borers 
  

  

  Two 
  species 
  of 
  flatheaded 
  borers, 
  

   the 
  flatheaded 
  apple 
  tree 
  borer 
  and 
  

   the 
  Pacific 
  flatheaded 
  borer, 
  occur 
  

  

  Figure 
  29. 
  — 
  Flatheaded 
  apple 
  tree 
  borer: 
  

   A, 
  Adult; 
  B, 
  larva. 
  Enlarged. 
  

  

  in 
  the 
  orchards 
  of 
  the 
  Pacific 
  

   Northwest. 
  They 
  are 
  similar, 
  the 
  

   adult 
  beetles 
  (fig. 
  29, 
  J.) 
  being 
  flat- 
  

   tened, 
  and 
  dark 
  greenish 
  blue 
  or 
  

   dark 
  bronze 
  with 
  coppery 
  spots. 
  

   The 
  larvae, 
  or 
  borers, 
  are 
  most 
  

   often 
  injurious 
  to 
  young 
  trees, 
  par- 
  

   ticularly 
  those 
  weakened 
  from 
  sun- 
  

   burn 
  or 
  other 
  causes. 
  They 
  are 
  

   waxy 
  white, 
  about 
  an 
  inch 
  long 
  

   when 
  full-grown, 
  legless, 
  and 
  with 
  

  

  