﻿364 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  FIG. 
  

  

  6 
  Group 
  of 
  female 
  and 
  half-grown 
  scales, 
  much 
  enlarged 
  

  

  7 
  Spray 
  of 
  ivy 
  showing 
  scales 
  on 
  upper 
  and 
  under 
  surface 
  of 
  the 
  leaves 
  

  

  and 
  on 
  'the 
  stem, 
  natural 
  size 
  

  

  8 
  Yellowish 
  eggs 
  and 
  young 
  found 
  under 
  a 
  scale, 
  very 
  much 
  enlarged 
  

  

  PLATE 
  8 
  

  

  Effects 
  of 
  undiluted 
  crude 
  petroleum 
  

  

  Tree 
  93, 
  lombard 
  plum, 
  was 
  sprayed 
  with 
  crude 
  petroleum 
  April 
  11, 
  and 
  

  

  the 
  tree 
  photographed 
  July 
  2. 
  

   Tree 
  8, 
  one 
  of 
  the 
  same 
  variety, 
  was 
  similarly 
  sprayed 
  with 
  a 
  20% 
  

  

  mechanical 
  emulsion 
  of 
  crude 
  petroleum, 
  and 
  the 
  tree 
  photographed 
  

  

  July 
  2. 
  Compare 
  the 
  two 
  in 
  order 
  to 
  gain 
  an 
  idea 
  of 
  the 
  effect 
  of 
  

  

  crude 
  petroleum. 
  

  

  PLATE 
  9 
  

  

  Effects 
  of 
  undiluted 
  crude 
  petroleum 
  

  

  Tree 
  loi, 
  a 
  seek 
  el 
  pear, 
  was 
  sprayed 
  with 
  undiluted 
  crude 
  petroleum, 
  

   April 
  II, 
  and 
  photographed 
  July 
  2. 
  

  

  The 
  king 
  appletree 
  was 
  painted 
  with 
  crude 
  petroleum 
  Dec. 
  i, 
  1899, 
  and 
  

   photographed 
  May 
  21. 
  This 
  tree 
  died 
  during 
  the 
  summer, 
  throw- 
  

   ing 
  out 
  scarcely 
  a 
  leaf. 
  

  

  Tree 
  no, 
  a 
  Kieffer 
  pear 
  sprayed 
  with 
  Good's 
  whale 
  oil 
  soap 
  April 
  11, 
  is 
  

   represented 
  by 
  way 
  of 
  contrast. 
  

  

  PLATE 
  10 
  

  

  Fumigating 
  tent 
  in 
  operation. 
  The 
  tent 
  is 
  lifted 
  bodily 
  from 
  the 
  tree 
  

   with 
  the 
  aid 
  of 
  the 
  tackle 
  and 
  pole. 
  The 
  hood 
  was 
  kept 
  distended 
  

   in 
  this 
  instance 
  in 
  order 
  to 
  make 
  the 
  cubic 
  contents 
  more 
  constant. 
  

  

  PLATE 
  II 
  

  

  FIG. 
  

  

  I 
  Diagrammatic 
  representation 
  of 
  anal 
  plate 
  of 
  adult 
  female 
  scale 
  insect, 
  

  

  showing 
  peculiar 
  organs. 
  Those 
  belonging 
  specially 
  to 
  the 
  ventral 
  

  

  • 
  surface 
  are 
  represented 
  on 
  the 
  left 
  half 
  of 
  the 
  figure; 
  those 
  of 
  the 
  

  

  dorsal 
  surface 
  on 
  the 
  right. 
  

   <2, 
  a 
  lobes, 
  heavily 
  chitinized 
  at 
  tip 
  

   b^ 
  by 
  b, 
  b 
  spines, 
  on 
  ventral 
  and 
  on 
  dorsal 
  surfaces, 
  the 
  latter 
  slightly 
  

  

  out 
  of 
  focus 
  

   c, 
  c, 
  Cy 
  c 
  plates, 
  of 
  varying 
  forms 
  

   //, 
  dy 
  dy 
  d 
  incisions 
  in 
  margin 
  of 
  anal 
  segment 
  

  

  