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  PROCEEDINGS 
  OF 
  THE 
  FOURTH 
  ENTOMOLOGICAL 
  MEETING 
  

  

  If 
  therefore 
  these 
  stalks 
  which 
  are 
  dried 
  and 
  being 
  stored 
  as 
  fodder 
  

   for 
  cattle 
  in 
  summer 
  and 
  the 
  following 
  monsoon 
  and 
  which 
  contain 
  

   so 
  much 
  percentage 
  of 
  borers 
  in 
  the 
  hibernating 
  state 
  at 
  present 
  are 
  

   chaffed 
  by 
  power 
  or 
  hand-machines, 
  there 
  is 
  every 
  probability 
  of 
  des- 
  

   troying 
  most 
  of 
  these 
  borers. 
  

  

  Mr. 
  Fletcher. 
  Many 
  of 
  the 
  names 
  of 
  these 
  borers 
  are 
  still 
  very 
  uncertain. 
  We 
  

  

  can 
  discriminate 
  the 
  larvae 
  and 
  the 
  pupae 
  fairly 
  easily, 
  but 
  the 
  deter- 
  

   mination 
  and 
  nomenclature 
  of 
  the 
  adults 
  cannot 
  be 
  taken 
  up 
  until 
  we 
  

   get 
  definitely 
  named 
  material. 
  I 
  was 
  hoping 
  to 
  get 
  this 
  done 
  when 
  

   I 
  attended 
  the 
  Entomological 
  Conference 
  in 
  London, 
  to 
  which, 
  as 
  you 
  

   know, 
  I 
  was 
  prevented 
  from 
  going. 
  About 
  six 
  years 
  ago 
  we 
  sent 
  

   material 
  to 
  Sir 
  George 
  Hampson 
  for 
  determination 
  but 
  his 
  descriptions 
  

   are 
  difficult 
  to 
  apply 
  to 
  particular 
  forms 
  in 
  many 
  cases. 
  

  

  The 
  subject 
  of 
  cane-borers 
  is 
  a 
  very 
  important 
  one. 
  The 
  Sugar 
  

   Committee 
  was 
  brought 
  into 
  existence 
  through 
  the 
  very 
  great 
  shortage 
  

   and 
  consequent 
  high 
  price 
  of 
  sugar. 
  The 
  total 
  damage 
  done 
  by 
  borers 
  

   to 
  sugarcane 
  is 
  enormous. 
  In 
  the 
  evidence 
  which 
  I 
  gave 
  before 
  the 
  

   Committee 
  at 
  Simla 
  I 
  estimated 
  it 
  at 
  Rs. 
  300,000,000. 
  When 
  our 
  stafE 
  

   is 
  extended 
  I 
  hope 
  to 
  place 
  at 
  least 
  one 
  expert 
  entirely 
  on 
  this 
  work. 
  

  

  Mr. 
  Subramaniam. 
  Mr. 
  Ghosh 
  in 
  his 
  paper 
  mentioned 
  that 
  Diatrcea 
  attacked 
  the 
  canes 
  

   in 
  early 
  stages 
  of 
  its 
  growth 
  only, 
  but 
  in 
  Mysore 
  I 
  have 
  found 
  larvae 
  

   of 
  DiatrcBa 
  attacking 
  mature 
  tops 
  at 
  the 
  time 
  of 
  harvesting. 
  

  

  Mr. 
  Gbosh. 
  It 
  would 
  be 
  useful 
  if 
  you 
  would 
  send 
  in 
  specimens 
  to 
  Pusa 
  for 
  examina- 
  

  

  tion, 
  as 
  very 
  little 
  is 
  known 
  at 
  present 
  regarding 
  cane-borers 
  in 
  Southern 
  

   India. 
  

  

  Mr. 
  Inglis. 
  Are 
  any 
  kinds 
  of 
  cane 
  immune 
  ? 
  

  

  Mr. 
  Ghosh. 
  ^o 
  '■> 
  ^^* 
  *^^^ 
  varieties 
  of 
  cane 
  are 
  less 
  attacked 
  than 
  the 
  thick 
  ones. 
  

  

  Mr 
  Ballard 
  Regarding 
  the 
  percentage 
  of 
  attack 
  in 
  paddy, 
  experiments 
  are 
  pro- 
  

  

  ceeding 
  to 
  determine 
  this, 
  for 
  I 
  think 
  it 
  is 
  usually 
  much 
  exaggerated. 
  

   I 
  was 
  told 
  by 
  a 
  Farm 
  Manager 
  of 
  a 
  60 
  per 
  cent, 
  attack 
  of 
  Schoenobius 
  

   bipunctifer 
  ; 
  an 
  actual 
  count 
  over 
  a 
  hundred 
  acres 
  showed 
  4 
  to 
  5 
  per 
  

   cent. 
  At 
  Coimbatore 
  on 
  paddy 
  in 
  th^ 
  Farm, 
  I 
  asked 
  the 
  Manager 
  to 
  

   estimate 
  the 
  damage 
  by 
  borers 
  and 
  he 
  placed 
  it 
  at 
  25 
  per 
  cent. 
  ; 
  on 
  a 
  

   count 
  over 
  half-an-acre, 
  this 
  proved 
  to 
  be 
  0-4 
  to 
  0-7 
  per 
  cent. 
  

  

  Scolytids 
  are 
  potential 
  pests 
  of 
  cane. 
  I 
  have 
  found 
  one 
  attacking 
  

   cumbu. 
  It 
  has 
  not 
  been 
  recorded 
  before. 
  

  

  Mr. 
  Deshpande. 
  In 
  Konkan 
  I 
  noticed 
  in 
  each 
  plot 
  of 
  a 
  20-acre 
  field 
  damage 
  of 
  more 
  

  

  than 
  70 
  per 
  cent, 
  due 
  to 
  Schoenobius. 
  

  

  Mr. 
  Subramaniam. 
  I 
  shoald 
  like 
  to 
  know 
  if 
  the 
  damage 
  by 
  Pachydiplosis 
  oryzce 
  occurs 
  

   year 
  after 
  year 
  ? 
  

  

  