﻿PROCEEDINGS 
  OF 
  THE 
  FOURTH 
  ENTOMOLOGICAL 
  MEETING 
  

  

  101 
  

  

  From 
  the 
  above 
  record 
  it 
  will 
  be 
  seen 
  that 
  the 
  emergence 
  of 
  these 
  

   moths 
  in 
  the 
  evening 
  did 
  not 
  occur 
  so 
  much 
  as 
  it 
  used 
  to 
  be 
  at 
  night. 
  

  

  3. 
  The 
  third 
  measure 
  that 
  was 
  adopted 
  was 
  of 
  searching 
  and 
  collect- 
  

   ing 
  their 
  egg-masses 
  from 
  their 
  favourite 
  food 
  plants 
  during 
  the 
  egg- 
  

   laying 
  period 
  of 
  these 
  moths 
  which 
  will 
  be 
  seen 
  from 
  the 
  f 
  ollowin'^' 
  table 
  : 
  

  

  4. 
  The 
  fourth 
  measure 
  which 
  was 
  taken 
  as 
  the 
  pest 
  advanced 
  in 
  the 
  

   stage 
  was 
  of 
  the 
  collection 
  and 
  destruction 
  of 
  the 
  caterpillars 
  by 
  several 
  

   contrivances. 
  

  

  (a) 
  The 
  first 
  ordinary 
  commonsense 
  contrivance 
  was 
  of 
  the 
  collection 
  

   of 
  small 
  and 
  big 
  caterpillars 
  by 
  handpicking. 
  la 
  this 
  way, 
  in 
  the 
  year 
  

   1911, 
  282| 
  lbs. 
  of 
  caterpillars 
  were 
  collected 
  and 
  destroyed 
  which 
  num- 
  

   bered 
  nearly 
  855,260 
  worms 
  at 
  a 
  cost 
  of 
  0-9-6 
  per 
  acre 
  and 
  this 
  was 
  the 
  

   first 
  year 
  of 
  the 
  experiment 
  and 
  that 
  of 
  the 
  heaviest 
  and 
  greatest 
  emer- 
  

   gence 
  of 
  moths 
  and 
  caterpillars. 
  

  

  Year. 
  

  

  1911 
  

   1912 
  

   1913 
  

  

  1914 
  

  

  1915 
  

   1916 
  

  

  Weight 
  of 
  

   caterpillars 
  

   collected. 
  

  

  lbs. 
  

  

  2821 
  855,260 
  

  

  50 
  

  

  30 
  

  

  No 
  perceptible 
  appearance 
  of 
  

   caterpillars. 
  

  

  Number 
  

   of 
  worms. 
  

  

  Ditto 
  

   Ditto 
  

  

  Remarks. 
  

  

  Handpicked 
  by 
  hand 
  which 
  cost 
  0-8-6 
  per 
  

   acre. 
  

  

  Ditto. 
  ditto. 
  

  

  These 
  were 
  jjartly 
  handpicked 
  and 
  mainly 
  

   collected 
  bj^ 
  sweeping 
  a 
  grasshopper 
  bag 
  

   over 
  the 
  crop 
  and 
  in 
  grass 
  on 
  boundaries 
  

   which 
  cost 
  0-3-3 
  per 
  acre. 
  

  

  