﻿304 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  Remedies. 
  The 
  recommendations 
  for 
  controlling 
  this 
  insect 
  are 
  the 
  

   same 
  as 
  those 
  advised 
  for 
  the 
  preceding 
  form, 
  to 
  which 
  the 
  reader 
  is 
  

  

  referred. 
  

  

  Bibliography 
  

  

  Fitch, 
  Asa. 
  N. 
  Y. 
  state 
  agric. 
  soc. 
  Trans. 
  1856. 
  16 
  : 
  352-53 
  (orig- 
  

   inal 
  description 
  asAspidiotus 
  furfurus); 
  Noxious, 
  beneficial 
  and 
  

   'other 
  insects 
  of 
  New 
  York. 
  3d-5th 
  rep'ts. 
  1859. 
  p. 
  34-35 
  IT 
  54 
  » 
  

  

  Walsh, 
  B. 
  D. 
  111. 
  state 
  hortic. 
  soc. 
  Trans. 
  1868. 
  Separate 
  as 
  rep't 
  

   of 
  acting 
  state 
  ent. 
  p. 
  53-55 
  (general 
  account). 
  

  

  Comstock, 
  J. 
  H. 
  U. 
  S. 
  depH 
  agric. 
  Rep't 
  of 
  ent. 
  1880. 
  p. 
  315-16 
  

   (synonymy 
  and 
  description). 
  

  

  Osborn, 
  Herbert. 
  Entomological 
  notes 
  for 
  the 
  year 
  1882. 
  la. 
  

   state 
  hortic. 
  soc. 
  Trans. 
  1882. 
  1883. 
  p. 
  291-92 
  (brief 
  general 
  account). 
  

  

  Howard, 
  L. 
  O. 
  U. 
  S. 
  dep't 
  agric. 
  Yearbook. 
  1894. 
  p. 
  259-61 
  

   (general 
  account). 
  

  

  Cooley, 
  R. 
  A. 
  Coccid 
  genera 
  Chionaspis 
  and 
  Hemichion- 
  

   aspis. 
  Mass. 
  agric. 
  expt. 
  sta. 
  Special 
  bul. 
  Aug. 
  10, 
  1899. 
  P- 
  23-29 
  

   (synonymy, 
  bibliography 
  and 
  general 
  account). 
  

  

  King, 
  G. 
  B. 
  A 
  new 
  variety 
  of 
  Chionaspis 
  furfura 
  Fitch 
  and 
  

   notes, 
  on 
  other 
  species. 
  Psyche. 
  1899. 
  8 
  : 
  334-36 
  (a 
  variety 
  described, 
  

   food 
  plants 
  and 
  distribution 
  given). 
  

  

  Cockerell, 
  T. 
  D. 
  A. 
  Note 
  on 
  the 
  pigments 
  of 
  the 
  coccid, 
  Chion- 
  

   aspis 
  furfura 
  Fitch. 
  Science. 
  Ap. 
  27, 
  1900. 
  11:671 
  (note 
  on 
  

   color 
  and 
  changes 
  obtained 
  by 
  potassium 
  hydrate). 
  

  

  Lochhead, 
  William. 
  San 
  Jose 
  and 
  other 
  scale 
  insects. 
  Ont. 
  

   dep't 
  agric. 
  Toronto. 
  1900. 
  p. 
  42-43 
  (brief 
  notice). 
  

  

  Pernicious 
  or 
  San 
  Jose 
  scale 
  insect 
  

  

  Aspidiotus 
  perniciosus 
  Comstock 
  

  

  PLATE 
  3 
  

  

  This 
  insect 
  is 
  known 
  by 
  hearsay, 
  at 
  least, 
  to 
  almost 
  every 
  fruit-grower 
  

   and 
  farmer 
  in 
  the 
  eastern 
  United 
  States. 
  It 
  has 
  recently 
  become 
  estab- 
  

   lished 
  in 
  a 
  number 
  of 
  widely 
  separated 
  localities 
  in 
  New 
  York 
  state, 
  and 
  

   is 
  now 
  the 
  object 
  of 
  considerable 
  anxiety 
  to 
  both 
  horticulturists 
  and 
  

   nurserymen. 
  This 
  pest 
  is 
  very 
  destructive 
  in 
  some 
  of 
  the 
  more 
  southern 
  

   states, 
  and 
  even 
  in 
  New 
  York, 
  when 
  allowed 
  to 
  increase 
  without 
  restric- 
  

   tion, 
  it 
  causes 
  considerable 
  damage. 
  Its 
  ability 
  to 
  inflict 
  so 
  much 
  injury 
  

  

  