﻿PROCEEDINGS 
  OF 
  THE 
  FOURTH 
  ENTOMOLOGICAL 
  MEETING 
  81. 
  

  

  Karunganni 
  * 
  from 
  Central 
  Farm. 
  

   17th 
  July 
  1920.— 
  250 
  bolls— 
  

  

  Platyedra 
  population 
  ....... 
  36 
  

  

  Earias 
  „ 
  ....... 
  10 
  

  

  Percentage 
  damaged 
  by 
  Platyedra 
  ..... 
  17-6 
  

  

  , 
  „ 
  „ 
  Earias 
  ..... 
  4 
  

  

  24th 
  July 
  1920.— 
  250 
  examined— 
  

  

  Platyedra 
  population 
  ....... 
  38 
  

  

  Earias 
  „ 
  ....... 
  5 
  

  

  Percentage 
  damaged 
  by 
  Platyedra 
  ..... 
  15-2 
  

  

  „ 
  „ 
  „ 
  Earias 
  ..... 
  2-0 
  

  

  Table 
  IV. 
  

   Bolls 
  from 
  other 
  districts 
  for 
  comparison 
  with 
  Table 
  I. 
  

  

  Virudupatty, 
  Trichinopoly 
  District, 
  Usilampatti 
  tract. 
  

   17th 
  July 
  1920.-1,000 
  bolls 
  examined— 
  

  

  Platyedra 
  population 
  ....... 
  463 
  

  

  Earias 
  ' 
  „ 
  . 
  . 
  .... 
  2 
  

  

  Percentage 
  damaged 
  by 
  Platyedra 
  ..... 
  42-9 
  

  

  » 
  >. 
  » 
  Earias 
  . 
  , 
  . 
  . 
  , 
  .£ 
  

  

  3rd 
  July 
  1920.— 
  730 
  bolls 
  Dindigul 
  tract— 
  

  

  Platyedra 
  population 
  . 
  . 
  . 
  , 
  . 
  . 
  .591 
  

  

  Earias 
  „ 
  ....... 
  5 
  

  

  Percentage 
  damaged 
  by 
  Platyedra 
  ..... 
  80-9 
  

  

  » 
  >» 
  „ 
  Earias 
  ..... 
  -06 
  

  

  5th 
  June 
  1920.— 
  Salem 
  District. 
  212 
  bolls— 
  

  

  Platyedra 
  population 
  ... 
  ... 
  7 
  

  

  Earias 
  „ 
  .... 
  1^ 
  

  

  Details 
  incomplete. 
  

   14th 
  August 
  1920.— 
  Salem. 
  100 
  bolls 
  from 
  Namakal 
  Taluq— 
  

  

  Percentage 
  attacked 
  by 
  Platyedra 
  63 
  . 
  

  

  » 
  „ 
  „ 
  Earias 
  _^j7. 
  

  

  Table 
  V. 
  

  

  Per 
  cent, 
  

   germinated. 
  

   Germination 
  of 
  seed 
  sample 
  from 
  unattacked 
  bolls-Coimbatore 
  59-1 
  

   Germination 
  from 
  mixed 
  sound 
  seed 
  taken 
  from 
  attacked 
  and 
  

  

  unattacked 
  boUs 
  ........ 
  42-0 
  

  

  Sound 
  seeds 
  from 
  attacked 
  boUs 
  — 
  

  

  Sample 
  (a) 
  . 
  ••..... 
  31 
  

  

  Sample 
  (6) 
  ........ 
  . 
  32 
  

  

  List 
  of 
  other 
  food-plants 
  of 
  Platyedra 
  gossypiella 
  in 
  South 
  India 
  ;— 
  

   Abutilon 
  indicum. 
  

   Hibiscus 
  esculentus. 
  

  

  Gossypium 
  obtusifoliutn. 
  

  

  