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  Cook 
  (A. 
  J.). 
  The 
  Cherry 
  and 
  Pear 
  Slug. 
  — 
  MtJdi/. 
  Bull, 
  State 
  Comm. 
  

   Hortic, 
  Sacramento, 
  Cal., 
  iii, 
  no. 
  1, 
  Jan. 
  1914, 
  pp. 
  40-41, 
  1 
  fig. 
  

  

  The 
  pear 
  slug 
  Eriocampoides 
  (Caliroa) 
  cerasi, 
  is 
  a 
  sawfly 
  of 
  European 
  

   origin 
  and 
  is 
  widely 
  distributed, 
  occurring 
  wherever 
  the 
  cherry 
  and 
  

   pear 
  are 
  cultivated. 
  The 
  eggs 
  are 
  deposited 
  in 
  the 
  stem 
  or 
  leaf 
  in 
  

   late 
  spring 
  and 
  early 
  summer. 
  The 
  larvae 
  feed 
  on 
  the 
  green 
  parts 
  of 
  

   the 
  leaves, 
  attacking 
  chiefly 
  the 
  cherry 
  and 
  pear. 
  Arsenicals 
  are 
  very 
  

   effective 
  against 
  these 
  insects, 
  but, 
  owing 
  to 
  their 
  viscid 
  secretion, 
  

   hme 
  or 
  even 
  earth-dust 
  thrown 
  on 
  them 
  is 
  an 
  excellent 
  means 
  of 
  

   destroying 
  them. 
  

  

  Fawcett 
  (H. 
  S.). 
  Does 
  Bordeaux 
  Paste 
  cause 
  Injury 
  when 
  followed 
  

   by 
  Fumigation? 
  — 
  Mthly. 
  Bull. 
  State 
  Comm. 
  Hortic, 
  Sacramento, 
  

   Cal., 
  iii, 
  no. 
  1, 
  Jan. 
  1914, 
  pp. 
  41-43, 
  1 
  fig. 
  

  

  It 
  has 
  been 
  noticed 
  that 
  if 
  spraying 
  with 
  Bordeaux 
  mixture 
  is 
  

   followed 
  too 
  soon 
  by 
  fumigation 
  with 
  hydrocyanic 
  acid 
  gas, 
  the 
  trees 
  

   are 
  more 
  likely 
  to 
  be 
  injured 
  than 
  those 
  not 
  sprayed, 
  resulting 
  in 
  

   partial 
  defohation 
  and 
  killing 
  back 
  of 
  the 
  small 
  twigs. 
  This 
  does 
  not 
  

   seem 
  to 
  be 
  true 
  in 
  the 
  case 
  of 
  lime-sulphur 
  spraying. 
  Trees 
  were 
  

   treated 
  with 
  Bordeaux 
  paste 
  on 
  the 
  trunks 
  and 
  fumigated 
  soon 
  after- 
  

   wards 
  ; 
  no 
  apparent 
  injury 
  resulted. 
  This 
  has 
  been 
  successfully 
  

   repeated 
  several 
  times. 
  It 
  would, 
  therefore, 
  seem 
  that 
  where 
  the 
  

   proper 
  precautions 
  as 
  to 
  weather 
  and 
  moisture 
  conditions 
  are 
  observed 
  

   by 
  the 
  fumigator, 
  there 
  is 
  no 
  injury 
  to 
  be 
  feared 
  from 
  the 
  Bordeaux 
  

   paste, 
  even 
  when 
  applied 
  to 
  the 
  large 
  limbs. 
  

  

  EssiG 
  (E. 
  0.). 
  Insect 
  Notes. 
  — 
  Mtlily. 
  Bull. 
  State 
  Comm. 
  Hortic, 
  

   Sacramento, 
  Cal., 
  iii, 
  no. 
  1, 
  Jan. 
  1914, 
  p. 
  47. 
  

  

  The 
  sweet-birch 
  scale, 
  Chionaspis 
  salicis-nigrae, 
  Walsh, 
  was 
  taken 
  

   by 
  the 
  author 
  recently 
  in 
  the 
  Sierra 
  Nevada 
  Mountains, 
  where 
  it 
  appears 
  

   to 
  be 
  common, 
  east 
  of 
  the 
  Sacramento 
  Valley. 
  The 
  sweet 
  birch, 
  

   Ceanotkus 
  integerrimus, 
  H. 
  & 
  A., 
  is 
  generally 
  attacked 
  at 
  the 
  base 
  

   near 
  the 
  ground, 
  and 
  the 
  infested 
  areas 
  appear 
  as 
  if 
  whitewashed. 
  In 
  

   not 
  a 
  few 
  cases 
  the 
  entire 
  bush 
  was 
  killed 
  by 
  this 
  insect. 
  The 
  pine- 
  

   leaf 
  scale, 
  C. 
  pinifolia, 
  is 
  exceedingly 
  common 
  on 
  Pinus 
  ponderosa, 
  

   Dougl., 
  in 
  the 
  \-icinity 
  of 
  Forest 
  Hill 
  (Placer 
  County), 
  as 
  also 
  is 
  the 
  

   black 
  pine-needle 
  scale, 
  Aspidiotus 
  calif 
  ornicus, 
  Colm. 
  In 
  the 
  same 
  

   county 
  Kermes 
  cockerelli, 
  Ehrh., 
  and 
  Aspidiotus 
  densiflorae, 
  Bremner, 
  

   were 
  taken 
  from 
  Quercus 
  chrysolepis. 
  The 
  destructive 
  grasshoppers, 
  

   Melanoplus 
  devastator, 
  Scudd., 
  Ji. 
  cinereus 
  and 
  Schistocerca 
  venusta, 
  

   Scudd. 
  , 
  were 
  found 
  along 
  the 
  north 
  fork 
  of 
  the 
  American 
  River. 
  

  

  Cook 
  (A. 
  J.). 
  Alfalfa. 
  — 
  Mthly. 
  Bull. 
  State 
  Comm. 
  Hortic, 
  Sacramento 
  ^ 
  

   Cal, 
  iii, 
  no. 
  2, 
  Feb. 
  1914, 
  pp. 
  53-73, 
  17 
  figs. 
  

  

  In 
  a 
  lengthy 
  article 
  on 
  the 
  cultivation 
  of 
  alfalfa, 
  the 
  author 
  notes 
  

   among 
  the 
  pests 
  of 
  this 
  crop 
  in 
  California 
  the 
  following 
  insects 
  : 
  — 
  

   Army 
  worm 
  {Peridroma 
  margaritosa 
  var. 
  saucia), 
  locusts 
  (Acridiidae), 
  

   the 
  alfalfa 
  butterfly 
  {Colias 
  eurytheme), 
  wireworms 
  (Elateridae), 
  

   the 
  alfalfa 
  looper 
  {Autographa 
  gamma 
  calif 
  or 
  nicu), 
  the 
  alfalfa 
  crane-fly 
  

   {Tipulu 
  simplex), 
  the 
  apple 
  leaf-hopper 
  [Empoasca 
  mali), 
  clover 
  mite 
  

   iBnjohia 
  pratensis), 
  grain 
  thrips 
  {Euthrips 
  tritici), 
  grass 
  leaf-hopper 
  

  

  