﻿3l6 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  The 
  San 
  Jose 
  Scale. 
  

  

  The 
  San 
  Jos^ 
  Scale, 
  A 
  spidioius 
  perniciosus 
  Corns., 
  has 
  apparently 
  found 
  

   the 
  climatic 
  conditions 
  unsuited 
  to 
  its 
  establishment 
  in 
  all 
  except 
  the 
  ex- 
  

   treme 
  south-eastern 
  part 
  of 
  our 
  state. 
  Its 
  existence 
  in 
  a 
  few 
  localities 
  

   has 
  been 
  reported 
  to 
  me, 
  but 
  in 
  each 
  instance 
  another 
  scale 
  has 
  been 
  

   mistaken 
  for 
  it. 
  At 
  the 
  Kinderhook 
  locality 
  where 
  it 
  was 
  first 
  discovered 
  

   in 
  the 
  Hudson 
  river 
  valley, 
  it 
  has 
  been 
  nearly 
  exterminated. 
  Recently 
  

   its 
  presence 
  was 
  suspected 
  by 
  the 
  owner 
  of 
  the 
  orchard, 
  Mr. 
  Morrell, 
  

   where 
  it 
  had 
  been 
  found 
  abundantly 
  two 
  years 
  ago, 
  but 
  on 
  examination, 
  

   the 
  scale 
  proved 
  to 
  be 
  the 
  rather 
  closely 
  resembling 
  one, 
  Aspidiotus 
  

   juglans-regice 
  Comstock. 
  An 
  examination 
  of 
  the 
  orchard 
  showed 
  no 
  

   hving 
  San 
  Jose 
  Scale, 
  but 
  later, 
  a 
  single 
  living 
  specimen 
  alone 
  on 
  a 
  twig, 
  

   was 
  brought 
  to 
  my 
  office 
  by 
  Mr. 
  Morrell. 
  

  

  A 
  neighboring 
  orchard 
  in 
  Kinderhook 
  was 
  reported 
  as 
  badly 
  infested 
  

   with 
  the 
  scale. 
  On 
  examination 
  in 
  July, 
  by 
  Mr. 
  E. 
  P. 
  Felt, 
  my 
  assistant, 
  

   the 
  scale 
  was 
  found 
  in 
  abundance 
  on 
  plum 
  trees 
  of 
  apparently 
  ten 
  or 
  

   twelve 
  years' 
  growth, 
  but 
  upon 
  perhaps 
  twenty 
  trees 
  that 
  were 
  carefully 
  

   examined, 
  not 
  a 
  single 
  living 
  scale 
  was 
  found. 
  The 
  trees 
  had 
  not 
  been 
  

   treated 
  for 
  the 
  scale, 
  and 
  it 
  is 
  therefore 
  probable 
  that 
  the 
  insect 
  had 
  been 
  

   winter-killed. 
  How 
  long 
  they 
  had 
  been 
  upon 
  the 
  trees, 
  or 
  the 
  source 
  of 
  

   the 
  infestation, 
  was 
  not 
  learned, 
  but 
  the 
  age 
  of 
  the 
  trees 
  would 
  indicate 
  

   that 
  the 
  pest 
  had 
  not 
  been 
  introduced 
  on 
  nursery 
  stock. 
  The 
  orchard 
  

   was 
  within 
  one 
  fourth 
  of 
  a 
  mile 
  of 
  that 
  of 
  Mr. 
  Morrell, 
  and 
  it 
  is 
  highly 
  

   probable 
  that 
  it 
  had 
  been 
  carried 
  from 
  there 
  upon 
  birds 
  or 
  insects. 
  

  

  The 
  scale 
  has 
  also 
  been 
  reported 
  to 
  me 
  recently 
  (in 
  August), 
  from 
  

   another 
  locality 
  in 
  New 
  York, 
  in 
  the 
  valley 
  of 
  the 
  Wallkill 
  river 
  — 
  a 
  tribu- 
  

   tary 
  of 
  the 
  Hudson 
  river. 
  A 
  fev/ 
  fruit-trees 
  in 
  an 
  orchard 
  in 
  Middletown, 
  

   Orange 
  county, 
  are 
  stated 
  to 
  be 
  infested 
  with 
  the 
  scale 
  — 
  the 
  trees 
  having 
  

   been 
  received 
  from 
  a 
  New 
  Jersey 
  nursery. 
  Inquiry 
  was 
  promptly 
  made 
  

   of 
  the 
  owner 
  of 
  the 
  orchard 
  of 
  the 
  extent 
  of 
  the 
  infestation 
  with 
  proffer 
  of 
  

   assistance 
  if 
  needed, 
  but 
  no 
  reply 
  having 
  been 
  received, 
  it 
  is 
  probable 
  

   that 
  the 
  infested 
  trees 
  were 
  promptly 
  destroyed, 
  and 
  that 
  the 
  spread 
  of 
  

   the 
  insect 
  was 
  not 
  feared. 
  

  

  The 
  Oak. 
  Kermes. 
  

  

  The 
  peculiar 
  oak-kermes, 
  Kermes 
  galliformis 
  Riley 
  (PI. 
  V, 
  fig. 
  i), 
  which 
  

   bears 
  so 
  marked 
  a 
  resemblance 
  to 
  a 
  gall 
  as 
  to 
  be 
  mistaken 
  for 
  it 
  by 
  everyone 
  

   not 
  acquainted 
  with 
  it, 
  may 
  not 
  be 
  rare 
  when 
  one 
  knows 
  where 
  to 
  look 
  for 
  

   it, 
  but 
  it 
  has 
  always 
  been 
  a 
  rarity 
  in 
  my 
  own 
  experience. 
  One 
  of 
  my 
  cor- 
  

  

  