﻿380 
  

  

  moth. 
  Carbon 
  bisulphide 
  fumes 
  were 
  very 
  efficient 
  in 
  killing 
  the 
  

   larvae, 
  and 
  were 
  in 
  every 
  respect 
  very 
  satisfactory 
  as 
  a 
  fumigant. 
  

  

  Herrick 
  (G. 
  W.). 
  Oviposition 
  of 
  two 
  Apple 
  Pests. 
  — 
  Jl. 
  Econ. 
  Entom., 
  

   Concord, 
  vii, 
  no. 
  2, 
  April 
  1914, 
  pp. 
  189-192, 
  3 
  figs. 
  

  

  For 
  two 
  seasons 
  the 
  green 
  fruit 
  worm 
  (Xylina 
  antennata) 
  has 
  been 
  

   prominent 
  among 
  the 
  insect 
  pests 
  of 
  apples, 
  pears 
  and 
  in 
  some 
  instances, 
  

   sour 
  cherries. 
  The 
  adult 
  and 
  larval 
  stages 
  of 
  this 
  insect 
  have 
  been 
  

   described 
  and 
  also 
  its 
  habits 
  and 
  distribution, 
  but 
  not 
  the 
  eggs 
  or 
  

   egg-laying 
  habits. 
  The 
  author 
  has 
  studied 
  this 
  part 
  of 
  the 
  life-cycle, 
  

   and 
  finds 
  that 
  the 
  eggs, 
  in 
  the 
  insectary, 
  were 
  deposited 
  in 
  the 
  leaf 
  

   ' 
  scars 
  on 
  the 
  stems 
  and 
  branches, 
  and 
  also 
  on 
  the 
  underside 
  of 
  the 
  leaves 
  ; 
  

   from 
  observations 
  in 
  the 
  field 
  it 
  seems 
  that 
  the 
  eggs 
  are 
  laid 
  singly 
  on 
  

   the 
  branches 
  before 
  the 
  leaves 
  appear. 
  

  

  The 
  Palmer 
  worm 
  {Y 
  psolophus 
  fometellus) 
  is 
  an 
  erratic 
  pest 
  of 
  

   apples 
  ; 
  it 
  is 
  however 
  becoming 
  more 
  common 
  and 
  persistent 
  than 
  

   formerly. 
  The 
  eggs 
  are 
  laid 
  on 
  the 
  leaves, 
  among 
  the 
  hairs 
  on 
  the 
  

   underside 
  ; 
  they 
  are 
  very 
  small 
  and 
  inconspicuous 
  ; 
  in 
  general 
  

   they 
  are 
  oval 
  and 
  pink 
  in 
  colour. 
  The 
  incubation 
  period 
  of 
  these 
  eggs 
  

   is 
  probably 
  about 
  7 
  days. 
  

  

  CooLEY 
  (K. 
  A.). 
  Two 
  New 
  Insect 
  Pests 
  of 
  Currants 
  and 
  Gooseberries. 
  — 
  

  

  Jl, 
  Econ. 
  Entom., 
  Concord, 
  vii, 
  no. 
  2, 
  April 
  1914, 
  pp. 
  193-195. 
  

  

  "" 
  A'^weevil, 
  Pseydanthonomus 
  validus, 
  Dietz, 
  and 
  a 
  new 
  species 
  of 
  

   Thysanoptera, 
  Liothrips 
  montanus, 
  are 
  recorded 
  for 
  the 
  first 
  time 
  as 
  

   pests 
  of 
  currants 
  and 
  gooseberries 
  in 
  the 
  United 
  States. 
  P. 
  validus 
  

   appears 
  as 
  an 
  adult 
  in 
  the 
  spring 
  at 
  the 
  time 
  when 
  the 
  young 
  currants 
  

   are 
  forming 
  ; 
  numerous 
  punctures 
  are 
  made 
  with 
  the 
  long 
  beak 
  on 
  

   different 
  parts 
  of 
  the 
  fruit, 
  particularly 
  near 
  the 
  point 
  where 
  the 
  stems 
  

   are 
  attached 
  ; 
  the 
  eggs 
  are 
  laid 
  in 
  the 
  pits 
  near 
  the 
  stems. 
  The 
  larvae 
  

   hatching 
  from 
  the 
  eggs 
  pass 
  to 
  the 
  centre 
  of 
  the 
  fruit 
  and 
  feed 
  on 
  the 
  

   seeds 
  ; 
  they 
  reach 
  full 
  size 
  by 
  the 
  time 
  the 
  currants 
  are 
  mature. 
  

   The 
  pupal 
  stage 
  isjpassed 
  in 
  the 
  destroyed 
  fruit 
  ; 
  after 
  emerging 
  

   the 
  adults 
  live 
  for 
  a 
  short 
  time 
  on 
  the 
  bushes 
  and 
  then 
  burrow 
  into 
  

   the 
  ground 
  to 
  hibernate. 
  This 
  weevil 
  was 
  found 
  on 
  the 
  Montana 
  

   Experiment 
  Station, 
  while 
  investigations 
  were 
  being 
  made 
  on 
  the 
  

   currant 
  fruit 
  fly 
  {Epochra 
  canadensis). 
  The 
  weevils 
  were 
  found 
  to 
  be 
  

   three 
  times 
  more 
  numerous 
  than 
  this 
  fly. 
  The 
  author 
  proposes 
  the 
  

   name 
  Currant 
  Fruit- 
  Weevil 
  for 
  P. 
  validus. 
  

  

  The 
  second 
  insect 
  referred 
  to 
  was 
  found 
  on 
  gooseberries, 
  and 
  red 
  

   and 
  black 
  currants 
  in 
  Bozeman, 
  the 
  bushes 
  having 
  sufiered 
  a 
  peculiar 
  

   injury 
  to 
  the 
  tender 
  terminal 
  growth 
  of 
  the 
  shoots. 
  The 
  leaves 
  of 
  

   the 
  affected'^stems 
  were 
  distorted, 
  undersized 
  and 
  showed 
  distinct 
  

   spots, 
  suggesting 
  the 
  attacks 
  of 
  an 
  insect 
  with 
  piercing 
  mouth-parts. 
  

   The 
  insect 
  was 
  found 
  to 
  be 
  Liothrips 
  montanus, 
  a 
  recently 
  described 
  

   species 
  (see 
  this 
  Review, 
  Ser. 
  A, 
  i, 
  p. 
  515). 
  The 
  young, 
  which 
  are 
  

   bright 
  red 
  with 
  black 
  head 
  and 
  legs, 
  may 
  be 
  found 
  on 
  the 
  bushes 
  soon 
  

   after 
  growth 
  starts. 
  The 
  species 
  apparently 
  hibernates 
  in 
  the 
  adult 
  

   stage. 
  Prehminary 
  control 
  tests 
  were 
  made 
  with 
  commercial 
  lime- 
  

   sulphur, 
  27° 
  Beaume, 
  and 
  also 
  " 
  Black 
  Leaf 
  40 
  " 
  and 
  soap, 
  the 
  tobacco 
  

   extract 
  being 
  in 
  the 
  proportion 
  of 
  1 
  to 
  1,000. 
  The 
  hme-sulphur 
  

  

  