﻿94 
  PROCEEDINGS 
  OF 
  THE 
  FOURTH 
  ENTO.MOLOGICAL 
  MEETING 
  

  

  ing 
  them 
  were 
  made 
  at 
  Jalgaon 
  Farm 
  in 
  East 
  Khandesh 
  continuously 
  

   for 
  three 
  years 
  during 
  the 
  season. 
  Here 
  the 
  cotton 
  area 
  being 
  very 
  

   large, 
  this 
  trap 
  crop 
  was 
  grown 
  round 
  about 
  it 
  on 
  the 
  border, 
  which 
  

   very 
  effectively 
  attracted 
  and 
  entrapped 
  the 
  pest 
  from 
  going 
  to 
  the 
  

   cotton 
  area 
  and 
  also 
  realised 
  a 
  fairly 
  good 
  amount 
  by 
  the 
  sale 
  of 
  surplus 
  

   Bhinda 
  pods 
  as 
  a 
  vegetable 
  in 
  the 
  market. 
  

  

  At 
  Dohad 
  Government 
  Farm, 
  where 
  cotton 
  is 
  a 
  new 
  introduction, 
  

   Bhinda 
  was 
  sown 
  as 
  a 
  trap 
  for 
  boll- 
  worm 
  during 
  the 
  last 
  season, 
  which 
  

   also 
  effectively 
  checked 
  the 
  pest 
  and 
  got 
  in 
  all 
  1,404 
  lbs. 
  of 
  pods, 
  

   the 
  sale 
  of 
  which 
  realised 
  a 
  very 
  good 
  amount 
  as 
  a 
  catch 
  crop. 
  

  

  As 
  for 
  the 
  second 
  control 
  of 
  removing 
  affected 
  shoots 
  of 
  cotton 
  by 
  

   pruning, 
  it 
  has 
  been 
  found 
  that 
  in 
  the 
  year 
  1914, 
  at 
  Nadiad 
  Farm, 
  when 
  

   the 
  appearance 
  of 
  boll-worm 
  was 
  not 
  much 
  in 
  the 
  beginning 
  of 
  July 
  the 
  

   cost 
  of 
  pruning 
  and 
  removing 
  such 
  affected 
  shoots 
  came 
  to 
  about 
  one 
  

   anna 
  per 
  acre 
  for 
  an 
  attack 
  of 
  about 
  2| 
  per 
  cent. 
  Later 
  on, 
  about 
  the 
  

   middle 
  of 
  July, 
  the 
  cost 
  of 
  removing 
  the 
  pest 
  for 
  the 
  second 
  time 
  came 
  

   to 
  about 
  0-6-3 
  per 
  acre 
  for 
  an 
  attack 
  of 
  about 
  6 
  per 
  cent. 
  At 
  the 
  timic 
  

   of 
  the 
  third 
  removal 
  of 
  the 
  affected 
  tops 
  in 
  the 
  first 
  week 
  of 
  August 
  

   when 
  the 
  attack 
  had 
  gone 
  to 
  10 
  per 
  cent., 
  the 
  cost 
  per 
  acre 
  came 
  to 
  about 
  

   0-9-2. 
  One 
  more 
  thing 
  was 
  noticed 
  about 
  the 
  caterpillars 
  of 
  this 
  is 
  

   that 
  in 
  the 
  season 
  of 
  1919, 
  being 
  a 
  subsequent 
  year 
  after 
  famine, 
  the 
  

   attack 
  of 
  this 
  boll- 
  worm 
  was 
  very 
  severe. 
  More 
  than 
  50 
  per 
  cent, 
  

   of 
  the 
  bolls 
  on 
  the 
  plant 
  in 
  the 
  majority 
  of 
  cases 
  were 
  found 
  infested 
  

   with 
  this 
  about 
  the 
  end 
  of 
  November 
  1919 
  at 
  Broach 
  and 
  in 
  the 
  beginning 
  

   of 
  January 
  1920 
  at 
  Surat. 
  But 
  the 
  untimely 
  heavy 
  cyclonic 
  rain 
  and 
  

   chill, 
  completely 
  changed 
  the 
  aspect 
  of 
  the 
  pest. 
  Immediately 
  after 
  

   the 
  cessation 
  of 
  this 
  rain, 
  it 
  was 
  found 
  on 
  examination 
  of 
  al.ected 
  

   bolls 
  on 
  the 
  plant 
  that 
  in 
  almost 
  all 
  cases 
  the 
  caterpillars 
  were 
  found 
  

   lying 
  dead 
  on 
  them 
  with 
  an 
  exudation 
  of 
  greenish-yellow 
  fluid 
  at 
  the 
  

   mouth 
  of 
  an 
  aperture. 
  Some 
  fungus 
  growths 
  were 
  also 
  found 
  on 
  the 
  

   body 
  of 
  these 
  worms 
  which 
  led 
  one 
  to 
  believe 
  that 
  they 
  died 
  due 
  either 
  

   to 
  some 
  Bacterial 
  or 
  Fungoid 
  disease, 
  for 
  there 
  were 
  no 
  Hymenopterous 
  

   and 
  other 
  parasites 
  present 
  to 
  bring 
  about 
  such 
  a 
  mortality 
  in 
  the 
  worms. 
  

  

  As 
  to 
  the 
  second 
  problem 
  of 
  shedding 
  of 
  young 
  flower-buds 
  either 
  

   due 
  to 
  boll-worms 
  or 
  climatic 
  conditions, 
  it 
  has 
  been 
  observed 
  that 
  in 
  

   the 
  month 
  of 
  November 
  1920, 
  the 
  highest 
  record 
  due 
  to 
  boll- 
  worms 
  was 
  

   of 
  27 
  per 
  cent, 
  and 
  the 
  lowest' 
  11 
  per 
  cent., 
  while 
  taking 
  the 
  average 
  it 
  

   came 
  to 
  about 
  17 
  per 
  cent. 
  That, 
  which 
  was 
  caused 
  due 
  to 
  climate 
  and 
  

   other 
  environments, 
  was 
  10 
  per 
  cent, 
  the 
  highest, 
  and 
  3 
  per 
  cent, 
  the 
  

   lowest 
  ; 
  while 
  5| 
  per 
  cent, 
  the 
  average 
  for 
  this 
  very 
  month. 
  Similarly 
  

   in 
  the 
  month 
  of 
  December 
  1920, 
  the 
  highest 
  record 
  due 
  to 
  boll-worms 
  

   was 
  13 
  per 
  cent, 
  and 
  the 
  lowest 
  3 
  per 
  cent, 
  while 
  that 
  was 
  due 
  to 
  climatic 
  

  

  