﻿694 
  

  

  Hinds 
  (W. 
  E.). 
  Cotton 
  Worm 
  Control. 
  — 
  Alabama 
  Agric. 
  Expt. 
  Sta., 
  

   Auburn, 
  Press 
  Bull., 
  no. 
  72, 
  12th 
  August 
  1914, 
  4 
  pp. 
  

  

  Arsenate 
  of 
  lead 
  may 
  be 
  applied 
  in 
  heavy 
  doses 
  without 
  burning 
  

   the 
  f 
  oh 
  age 
  or 
  checking 
  the 
  setting 
  of 
  the 
  bolls 
  and 
  is 
  not 
  dangerous 
  to 
  

   the 
  operators. 
  As 
  many 
  pounds 
  of 
  powdered 
  arsenate 
  per 
  acre 
  as 
  

   the 
  cotton 
  is 
  feet 
  in 
  height 
  are 
  necessary, 
  although 
  two 
  pounds 
  will 
  

   be 
  needed 
  for 
  small 
  cotton, 
  while 
  cotton 
  six 
  feet 
  high 
  can 
  be 
  protected 
  

   with 
  four 
  or 
  five 
  pounds. 
  

  

  Paris 
  green 
  often 
  scorches 
  the 
  leaves, 
  checks 
  the 
  setting 
  of 
  fruit, 
  

   and 
  is 
  also 
  liable 
  to 
  cause 
  sores 
  on 
  men 
  and 
  mules 
  engaged 
  in 
  applying 
  

   it. 
  Not 
  more 
  than 
  1 
  to 
  IJ 
  pounds 
  of 
  Paris 
  green 
  must 
  be 
  used 
  per 
  

   acre 
  and 
  to 
  every 
  pound 
  2 
  pounds 
  of 
  flour 
  must 
  be 
  added. 
  The 
  cotton 
  

   worm, 
  Alabama 
  argillacea, 
  feeds 
  on 
  nothing 
  but 
  cotton 
  ; 
  the 
  first 
  

   signs 
  of 
  injury 
  usually 
  occur 
  in 
  low 
  wet 
  places 
  where 
  the 
  cotton 
  is 
  

   rank. 
  At 
  the 
  time 
  of 
  the 
  first 
  appearance 
  of 
  the 
  pest 
  it 
  does 
  not 
  

   usually 
  pay 
  to 
  treat 
  the 
  whole 
  field, 
  unless 
  the 
  caterpillars 
  are 
  scattered 
  

   throughout 
  it. 
  If 
  this 
  occurs 
  during 
  late 
  July 
  or 
  early 
  August 
  and 
  

   the 
  season 
  is 
  wet 
  and 
  the 
  cotton 
  rank, 
  there 
  is 
  great 
  probability 
  of 
  

   extensive 
  damage, 
  which 
  may 
  be 
  expected 
  in 
  from 
  10 
  to 
  15 
  days 
  after 
  

   the 
  larvae 
  of 
  the 
  first 
  generation 
  pupate. 
  Every 
  preparation 
  should 
  

   be 
  made 
  in 
  advance 
  when 
  such 
  conditions 
  prevail, 
  so 
  that 
  the 
  whole 
  

   of 
  the 
  crop 
  may 
  be 
  treated 
  without 
  delay. 
  The 
  simplest 
  method 
  for 
  

   destroying 
  cotton 
  worms 
  is 
  to 
  apply 
  powdered 
  arsenate 
  of 
  lead, 
  dusted 
  

   through 
  bags 
  carried 
  at 
  the 
  ends 
  of 
  a 
  pole 
  or 
  piece 
  of 
  narrow 
  board 
  

   by 
  a 
  man 
  riding 
  a 
  mule 
  ; 
  15 
  to 
  20 
  acres 
  can 
  thus 
  be 
  treated 
  by 
  one 
  

   man 
  in 
  a 
  day, 
  and 
  in 
  cases 
  of 
  emergency 
  the 
  work 
  might 
  be 
  continued 
  

   on 
  moonlight 
  nights. 
  The 
  board 
  may 
  be 
  long 
  enough 
  to 
  cover 
  four 
  

   rows, 
  and 
  if 
  more 
  than 
  10 
  feet 
  long 
  two 
  bags 
  should 
  be 
  used 
  on 
  each 
  

   side 
  to 
  ensure 
  better 
  distribution 
  of 
  the 
  dust. 
  The 
  spring 
  in 
  the 
  longer 
  

   boards 
  makes 
  it 
  unnecessary 
  to 
  shake 
  them 
  and 
  they 
  may 
  be 
  simply 
  

   held 
  firmly 
  on 
  the 
  front 
  of 
  the 
  saddle 
  and 
  the 
  mule 
  ridden 
  at 
  a 
  trot, 
  

   leaving 
  a 
  cloud 
  of 
  dust 
  behind. 
  When 
  several 
  men 
  are 
  working 
  

   together 
  they 
  should 
  ride 
  abreast. 
  About 
  three 
  pounds 
  of 
  arsenate 
  

   may 
  be 
  distributed 
  per 
  acre 
  if 
  unbleached 
  domestic 
  cloth 
  or 
  sheeting 
  

   be 
  used 
  for 
  the 
  bags 
  ; 
  double 
  cheesecloth 
  should 
  be 
  used 
  where 
  it 
  is 
  

   desired 
  to 
  distribute 
  five 
  or 
  six 
  pounds 
  per 
  acre. 
  The 
  evening 
  is 
  the 
  best 
  

   time 
  for 
  application, 
  as 
  the 
  caterpillars 
  feed 
  at 
  night 
  and 
  the 
  dew 
  helps 
  

   to 
  keep 
  the 
  poison 
  in 
  place. 
  It 
  is 
  estimated 
  that 
  the 
  total 
  cost 
  of 
  one 
  

   application 
  of 
  arsenate 
  of 
  lead 
  is 
  equal 
  to 
  one-third 
  of 
  the 
  minimum 
  

   saving 
  in 
  the 
  crop. 
  When 
  the 
  cotton 
  boll 
  weevil 
  also 
  occurs 
  before 
  

   the 
  plants 
  are 
  full-grown, 
  poison 
  should 
  be 
  used 
  for 
  the 
  cotton 
  worm, 
  

   as 
  only 
  thereby 
  can 
  the 
  largest 
  possible 
  crop 
  be 
  secured. 
  In 
  Alabama, 
  

   cotton 
  worms 
  should 
  be 
  poisoned 
  until 
  the 
  10th 
  to 
  15th 
  of 
  September, 
  

   but 
  where 
  boll 
  weevils 
  are 
  abundant 
  and 
  the 
  cotton 
  has 
  set 
  all 
  the 
  

   crop 
  it 
  will, 
  the 
  use 
  of 
  poison 
  for 
  cotton 
  worms 
  should 
  be 
  discontinued. 
  

   Cotton 
  should 
  be 
  picked 
  as 
  soon 
  as 
  possible 
  after 
  the 
  bolls 
  open, 
  and 
  the 
  

   planter 
  may 
  then 
  complete 
  the 
  control 
  of 
  the 
  boll 
  weevil 
  which 
  may 
  

   have 
  been 
  begun 
  by 
  the 
  cotton 
  worm 
  by 
  burying 
  the 
  stalks 
  with 
  a 
  

   plough 
  or 
  destroying 
  them 
  by 
  fire. 
  

  

  