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  i8 
  — 
  

  

  night, 
  and 
  the 
  whole 
  orchard 
  was 
  consequently 
  sprayed 
  again, 
  the 
  work 
  

   being 
  finished 
  April 
  nth. 
  Five 
  months 
  later, 
  September 
  14-16, 
  1898, 
  a 
  

   critical 
  inspection 
  of 
  this 
  whole 
  orchard 
  was 
  made 
  by 
  Mr. 
  Green. 
  On 
  

   one 
  peach-tree 
  six 
  living 
  scales 
  were 
  found 
  on 
  new 
  wood; 
  on 
  eight 
  other 
  

   peach-trees 
  one 
  or 
  two 
  scales 
  each 
  were 
  found; 
  and 
  on 
  each 
  of 
  six 
  

   others 
  from 
  one 
  to 
  seventeen 
  scales 
  remained 
  — 
  mostly 
  on 
  new 
  wood 
  but 
  

   some 
  under 
  bits 
  of 
  bark 
  on 
  the 
  older 
  growth. 
  On 
  a 
  single 
  peach-tree 
  a 
  

   colony 
  of 
  one 
  or 
  two 
  hundred 
  scales 
  was 
  found 
  upon 
  a 
  branch, 
  a 
  part 
  

   of 
  which 
  had 
  evidently 
  escaped 
  the 
  spray. 
  Except 
  for 
  this 
  single 
  colony 
  

   the 
  total 
  number 
  of 
  scales 
  found 
  on 
  a 
  very 
  careful 
  search 
  of 
  everything 
  

   in 
  and 
  near 
  this 
  orchard 
  which 
  had 
  been 
  previously 
  infested 
  resulted 
  in 
  

   the 
  discovery 
  of 
  about 
  fifty 
  living 
  scales. 
  

  

  According 
  to 
  the 
  report 
  of 
  Mr. 
  Braucher, 
  as 
  summarized 
  in 
  my 
  

   last 
  entomological 
  Report 
  (page 
  15), 
  about 
  ninety-nine 
  per 
  cent, 
  of 
  the 
  

   San 
  Jose 
  scale 
  in 
  the 
  orchard 
  of 
  Mr. 
  Kiem, 
  near 
  Quincy, 
  had 
  been 
  

   killed 
  by 
  two 
  successive 
  sprayings 
  with 
  whale-oil 
  soap, 
  made 
  in 
  the 
  fall 
  

   of 
  1896 
  and 
  the 
  spring 
  of 
  1897. 
  That 
  this 
  was 
  not 
  an 
  overestimate 
  of 
  

   the 
  efficiency 
  of 
  the 
  treatment 
  is 
  shown 
  by 
  the 
  report 
  of 
  Mr. 
  Green, 
  

   who 
  visited 
  this 
  orchard 
  April 
  13, 
  1898, 
  and 
  upon 
  a 
  rigid 
  examination 
  

   could 
  find 
  no 
  living 
  scales 
  on 
  the 
  premises 
  except 
  on 
  the 
  trunk 
  of 
  one 
  

   small 
  apple-tree. 
  He 
  proceeded, 
  according 
  to 
  his 
  instructions, 
  to 
  treat 
  

   thoroughly 
  a 
  third 
  time 
  all 
  the 
  trees 
  (twenty 
  in 
  number) 
  which 
  had 
  

   originally 
  been 
  badly 
  infested, 
  first 
  scraping 
  the 
  trunks 
  and 
  removing 
  

   the 
  earth 
  from 
  about 
  the 
  bases. 
  Hot 
  soap 
  solution 
  was 
  brushed 
  on 
  with 
  

   stiff 
  brooms 
  up 
  to 
  the 
  uppermost 
  twigs, 
  and 
  these 
  were 
  sprayed 
  except 
  

   in 
  a 
  few 
  cases 
  where 
  they 
  were 
  perfectly 
  fresh 
  and 
  bright, 
  evidently 
  

   never 
  having 
  had 
  any 
  scale 
  upon 
  them. 
  A 
  very 
  critical 
  examination 
  of 
  

   this 
  orchard 
  made 
  September 
  20, 
  1898, 
  by 
  the 
  acute 
  and 
  careful 
  in- 
  

   spector, 
  Mr. 
  R. 
  W. 
  Braucher, 
  showed 
  that 
  the 
  San 
  Jose 
  scale 
  in 
  this 
  

   orchard 
  was, 
  however, 
  far 
  from 
  being 
  exterminated, 
  living 
  scales 
  being 
  

   detected 
  on 
  several 
  apple- 
  and 
  peach-trees 
  which 
  had 
  been 
  badly 
  infested 
  

   when 
  the 
  treatment 
  of 
  this 
  orchard 
  began. 
  One 
  apple-tree 
  had 
  been 
  so 
  

   badly 
  incrusted 
  with 
  the 
  scale 
  that 
  especial 
  pains 
  was 
  taken 
  to 
  treat 
  it 
  

   thoroughly. 
  The 
  limbs 
  were 
  cut 
  back 
  to 
  a 
  few 
  short 
  stubs, 
  the 
  bark 
  

   was 
  scraped, 
  and 
  the 
  tree 
  was 
  thoroughly 
  coated 
  with 
  strong 
  soap 
  solu- 
  

   tion 
  by 
  means 
  of 
  a 
  brush. 
  Pieces 
  of 
  bark 
  clipped 
  from 
  this 
  tree 
  showed, 
  

   nevertheless, 
  that 
  it 
  was 
  still 
  slightly 
  infested 
  by 
  the 
  scale. 
  

  

  At 
  Paloma, 
  visited 
  April 
  17th, 
  where 
  one 
  infested 
  tree 
  had 
  been 
  

   previously 
  found, 
  no 
  scale 
  could 
  be 
  detected. 
  This 
  tree 
  had 
  been 
  taken 
  

   out 
  and 
  burned, 
  and 
  others 
  near 
  it 
  had 
  been 
  twice 
  sprayed 
  by 
  the 
  owner 
  

   with 
  whale-oil 
  soap. 
  

  

  Mr. 
  Lowe's 
  orchard 
  of 
  five 
  acres 
  at 
  Auburn, 
  in 
  Sangamon 
  county, 
  

  

  