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  Paillot 
  (A.). 
  Observations 
  sur 
  la 
  Cochylis 
  et 
  I'Eud^mis 
  en 
  Bour- 
  

   gogne 
  pendant 
  I'annee 
  1912. 
  [Clysia 
  and 
  Polychrosis 
  in 
  Burgundy 
  

   during 
  1912.] 
  — 
  Ann. 
  du 
  Service 
  des 
  Epiphyties 
  (1912), 
  Paris^ 
  

   1913, 
  pp. 
  339-351. 
  [Received 
  18th 
  Feb. 
  1914.] 
  

  

  The 
  larvae 
  of 
  these 
  moths 
  hatch 
  out 
  by 
  night 
  or 
  in 
  the 
  evening 
  ; 
  

   only 
  in 
  dark, 
  damp 
  weather 
  were 
  a 
  few 
  cases 
  of 
  hatching 
  by 
  day 
  

   noticed. 
  Wild 
  plants 
  not 
  only 
  supply 
  food 
  in 
  some 
  cases, 
  but 
  they 
  

   may 
  also 
  play 
  a 
  protective 
  role, 
  especially 
  where 
  the 
  first 
  generation 
  

   is 
  concerned. 
  At 
  this 
  period 
  the 
  vines 
  have 
  little 
  foliage 
  and 
  the 
  

   moths 
  take 
  refuge 
  among 
  other 
  plants. 
  In 
  one 
  instance 
  a 
  thick 
  hedge 
  

   which 
  ran 
  through 
  a 
  vineyard 
  served 
  as 
  a 
  shelter 
  for 
  many 
  Polychrosis 
  

   during 
  the 
  period 
  of 
  flight 
  and 
  it 
  was 
  observed 
  that 
  the 
  adjoining 
  

   vines 
  were 
  more 
  injured 
  than 
  others. 
  The 
  discovery 
  of 
  pupae 
  in 
  

   sheltered 
  places 
  provided 
  by 
  spiders' 
  webs, 
  paper, 
  etc., 
  confirm 
  the 
  

   interesting 
  results 
  obtained 
  by 
  Jablonowski, 
  who 
  succeeded 
  in 
  nearly 
  

   eradicating 
  Polychrosis 
  by 
  combining 
  the 
  employment 
  of 
  the 
  earthing 
  

   up 
  method 
  with 
  that 
  of 
  shelter 
  traps 
  (corrugated 
  paper 
  placed 
  round 
  

   the 
  vine-stock 
  before 
  the 
  caterpillars 
  descend). 
  Where 
  Polychrosis 
  

   abounds 
  it 
  is 
  most 
  advisable 
  to 
  remove 
  all 
  the 
  bunches 
  left 
  on 
  the 
  

   stocks 
  after 
  the 
  vintage 
  and 
  thus 
  destroy 
  many 
  undeveloped 
  larvae 
  

   and 
  pupae. 
  Clysia 
  caterpillars 
  seem 
  but 
  little 
  sensitive 
  to 
  variations 
  

   of 
  temperature, 
  whereas 
  with 
  Polychrosis 
  the 
  larval 
  stage 
  is 
  prolonged 
  

   about 
  15 
  days 
  after 
  a 
  marked 
  fall 
  in 
  the 
  thermometer. 
  The 
  

   distribution 
  of 
  both 
  pests 
  is 
  also 
  influenced 
  by 
  the 
  nature 
  of 
  the 
  vine- 
  

   stocks. 
  It 
  has 
  been 
  noticed 
  that 
  the 
  " 
  Gamay 
  blanc 
  " 
  and 
  " 
  Aligote" 
  

   varieties 
  were 
  infested 
  by 
  the 
  caterpillars, 
  while 
  red 
  varieties 
  close 
  

   by 
  remained 
  immune. 
  The 
  author 
  found 
  large 
  quantities 
  of 
  Polychrosis 
  

   cocoons 
  among 
  inhabited 
  spiders' 
  webs, 
  so 
  that 
  spiders 
  cannot 
  be 
  con- 
  

   sidered 
  to 
  be 
  enemies 
  of 
  the 
  pest. 
  Omng 
  to 
  their 
  solitary 
  and 
  secluded 
  

   mode 
  of 
  life, 
  Clysia 
  and 
  Polychrosis 
  larvae 
  appear 
  to 
  be 
  well 
  protected 
  

   against 
  infectious 
  diseases, 
  though 
  cases 
  of 
  infection 
  by 
  microbes 
  from 
  

   allied 
  species 
  are 
  not 
  impossible. 
  Spicaria 
  farinosa 
  var. 
  verticilloides 
  

   is 
  the 
  cryptogamic 
  parasite 
  most 
  frequently 
  met 
  with 
  in 
  these 
  insects. 
  

   All 
  the 
  attempts 
  to 
  spread 
  this 
  disease 
  proved 
  unsuccessful 
  and 
  the 
  

   negative 
  results 
  obtained 
  by 
  M. 
  Marchal 
  with 
  this 
  parasite 
  are 
  con- 
  

   firmed. 
  Bait 
  traps 
  were 
  not 
  efficacious. 
  Chemical 
  treatments 
  were 
  

   tested 
  and 
  the 
  author 
  states 
  that 
  lead 
  arsenate 
  alone 
  proved 
  of 
  any 
  

   real 
  use. 
  Only 
  two 
  methods 
  of 
  control 
  have 
  proved 
  suitable 
  : 
  — 
  Spring 
  

   treatment 
  with 
  lead 
  arsenate, 
  preferably 
  applied 
  as 
  a 
  whetting 
  spray 
  ; 
  

   and 
  the 
  employment 
  of 
  shelter 
  traps 
  in 
  autumn. 
  Strips 
  of 
  cloth 
  or 
  

   old 
  rags, 
  wound 
  round 
  the 
  larger 
  branches 
  of 
  the 
  stocks 
  some 
  time 
  

   before 
  the 
  vintage, 
  are 
  most 
  suitable 
  for 
  this 
  purpose. 
  

  

  Chatanay 
  (J.). 
  Les 
  essais 
  de 
  piegeage 
  en 
  Champagne 
  en 
  1911-1912. 
  

   Les 
  espeees 
  dominant 
  dans 
  les 
  prises. 
  [Light 
  trap 
  trials 
  in 
  Cham- 
  

   pagne 
  in 
  1911-1912. 
  The 
  species 
  predominating 
  in 
  the 
  catches.] 
  — 
  

   Ann. 
  du 
  Service 
  des 
  Epiphyties 
  (1912), 
  Paris, 
  1913, 
  pp. 
  364-371. 
  

   [Received 
  18th 
  Feb. 
  1914.] 
  

  

  After 
  giving 
  a 
  full 
  account 
  of 
  all 
  the 
  species 
  of 
  insects 
  caught 
  by 
  

   his 
  light 
  traps, 
  the 
  author 
  concludes 
  by 
  pointing 
  out 
  that 
  methodical 
  

   analysis 
  of 
  the 
  catches 
  alone 
  can 
  determine 
  the 
  value, 
  of-iighi^raps, 
  

  

  (046) 
  Wt.P. 
  86-57. 
  1,500. 
  7.14. 
  B.&F.Ltd. 
  Gp.ll/S. 
  "^ 
  '^^^ 
  '^^/'^^ 
  

  

  