﻿?EOCKEDINGS 
  OF 
  THE 
  FOURTH 
  ENTOMOLOGICAL 
  MEETING 
  

  

  Table 
  II. 
  

  

  Examination 
  of 
  bolls 
  from 
  Central 
  Farm 
  to 
  check 
  results 
  at 
  Insectary. 
  

  

  Cambodia 
  cotton. 
  Percentage 
  of 
  green 
  bolls 
  attacked 
  on 
  the 
  Farm 
  lands 
  

  

  Per 
  cent. 
  

   10th 
  July 
  1920.— 
  200 
  bolls 
  examined— 
  

  

  Platyedra 
  population 
  ....... 
  106 
  

  

  Earias 
  ......... 
  12 
  

  

  Percentage 
  of 
  bolls 
  attacked 
  by 
  Platyedra 
  , 
  . 
  , 
  ,. 
  42 
  

  

  „ 
  ,, 
  „ 
  ,, 
  Earias 
  

  

  Maximum 
  number 
  of 
  Platyedra 
  found 
  in 
  one 
  boll 
  

  

  17th 
  July 
  1920.— 
  200 
  bolls 
  examined— 
  

  

  Platyedra 
  population 
  . 
  . 
  . 
  . 
  . 
  

  

  Earias 
  „ 
  . 
  . 
  . 
  . 
  . 
  

  

  Percentage 
  attacked 
  by 
  Platyedra 
  

  

  „ 
  „ 
  „ 
  Earias 
  

  

  Maximum 
  number 
  of 
  Platyedra 
  found 
  in 
  one 
  boll 
  

  

  24th 
  July 
  1920.— 
  200 
  examined— 
  

  

  Platyedra 
  population 
  . 
  . 
  . 
  . 
  . 
  

  

  Earias 
  ., 
  . 
  . 
  . 
  . 
  . 
  

  

  Percentage 
  of 
  bolls 
  damaged 
  by 
  Platyedra 
  . 
  

  

  „ 
  „ 
  >» 
  >» 
  Earias 
  

  

  Maximum 
  number 
  of 
  Platyedra 
  found 
  in 
  one 
  boll 
  

  

  151 
  

  

  4 
  

  

  42-.T 
  

  

  2-0 
  

  

  6 
  

  

  168 
  

  

  10 
  

  

  55-5 
  

  

  5-1 
  

  

  5 
  

  

  Table 
  III. 
  

   Comparison 
  of 
  attach 
  on 
  country 
  cottons 
  on 
  Central 
  Farm, 
  1919 
  and 
  1920. 
  

  

  Uppam 
  * 
  cotton. 
  

   17th 
  July 
  1920.— 
  250 
  bolls 
  examined— 
  

   Platyedra 
  population 
  

   Earias 
  „ 
  • 
  • 
  

  

  Percentage 
  damaged 
  by 
  Platyedra 
  

  

  24th 
  July 
  1920. 
  — 
  250 
  bolls 
  examined 
  — 
  

   Platyedra 
  population 
  

   Earias 
  „ 
  . 
  . 
  

  

  Percentage 
  damaged 
  by 
  Platyedra 
  

  

  15th 
  July 
  1919.— 
  500 
  bolls 
  examined— 
  

  

  Percentage 
  damaged 
  by 
  Platyedra 
  

   „ 
  „ 
  J. 
  Earias 
  

  

  31st 
  July 
  1919. 
  — 
  500 
  boUs 
  examined— 
  

  

  Percentage 
  damaged 
  by 
  Platyedra 
  

   ,, 
  „ 
  „ 
  Earias 
  

  

  54 
  

   Nil 
  

   21-6 
  

  

  70 
  

   Nil 
  

   23-2 
  

  

  60-625 
  

   •6 
  

  

  62-2 
  

   Nil 
  

  

  * 
  Gossypium 
  verbaceum. 
  

  

  