﻿249 
  

  

  Against 
  the 
  caterpillars, 
  spraying 
  with 
  a 
  solution 
  of 
  Paris 
  green 
  and 
  

   lime 
  in 
  water 
  (l-lo 
  oz. 
  of 
  green 
  and 
  the 
  same 
  amount 
  of 
  lime 
  in 
  2'7 
  

   gallons 
  of 
  water) 
  is 
  considered 
  the 
  best 
  remedy 
  in 
  Turkestan 
  ; 
  

   " 
  Djipsin 
  " 
  and 
  barium 
  chloride 
  gave 
  negative 
  results. 
  In 
  India 
  and 
  

   North 
  America 
  arsenical 
  sprays 
  are 
  used, 
  and 
  also 
  kerosene 
  emulsion 
  in 
  

   America. 
  In 
  India 
  the 
  attacked 
  fields 
  are 
  surrounded 
  by 
  trenches 
  as 
  

   traps. 
  Against 
  the 
  pupae, 
  the 
  cultivation 
  of 
  the 
  soil 
  is 
  suggested 
  by 
  

   Plotnikov 
  ; 
  it 
  has 
  also 
  been 
  noticed 
  that 
  the 
  pupae 
  perished 
  when 
  

   water 
  was 
  poured 
  over 
  them, 
  so 
  that 
  by 
  combining 
  spraying 
  and 
  water- 
  

   ing 
  the 
  pests 
  may 
  be 
  rapidly 
  destroyed. 
  

  

  Dean 
  (Gr. 
  A.). 
  Grasshopper 
  Control 
  Work 
  in 
  Western 
  Kansas. 
  — 
  Jl. 
  

  

  Econ. 
  Eyitom., 
  Concord., 
  vii, 
  no. 
  1, 
  Feb. 
  1914, 
  pp. 
  67-73, 
  2 
  pi. 
  

  

  A 
  very 
  successful 
  campaign 
  against 
  grasshoppers 
  was 
  carried 
  out 
  in 
  

   the 
  summer 
  of 
  1913 
  in 
  Western 
  Kansas, 
  where 
  for 
  some 
  years 
  past 
  

   these 
  insects 
  had 
  devastated 
  acres 
  of 
  cultivated 
  land. 
  The 
  most 
  

   common 
  species 
  were 
  Melanoplus 
  differentialis, 
  M. 
  hivitattus, 
  and 
  M. 
  

   atlantis. 
  In 
  the 
  control 
  work 
  poisoned 
  bran 
  mash, 
  made 
  according 
  

   to 
  the 
  following 
  formula, 
  was 
  used 
  : 
  Bran 
  20 
  lbs., 
  Paris 
  green 
  lib., 
  

   syrup 
  2 
  qts., 
  3 
  oranges 
  or 
  lemons, 
  water 
  3J 
  gals. 
  The 
  bait 
  when 
  

   flavoured 
  with 
  oranges 
  or 
  lemons 
  was 
  found 
  to 
  be 
  more 
  attractive 
  to 
  

   the 
  grasshoppers. 
  The 
  damp 
  mash 
  was 
  sown 
  broadcast 
  in 
  the 
  infested 
  

   area 
  early 
  in 
  the 
  morning 
  ; 
  using 
  the 
  above 
  quantities 
  it 
  should 
  be 
  

   scattered 
  so 
  that 
  5 
  acres 
  are 
  covered. 
  As 
  the 
  poison 
  does 
  not 
  act 
  

   quickly 
  the 
  insects 
  are 
  not 
  found 
  dead 
  until 
  two 
  or 
  three 
  days 
  later. 
  

   A 
  very 
  small 
  quantity 
  of 
  the 
  poison 
  is 
  sufficient 
  to 
  cause 
  death. 
  

  

  The 
  success 
  met 
  with 
  in 
  the 
  campaign 
  described 
  in 
  the 
  present 
  paper 
  

   was 
  largely 
  due 
  to 
  the 
  co-operation 
  of 
  most 
  of 
  the 
  farmers 
  mth 
  the 
  

   county 
  commissioners, 
  who 
  had 
  circularised 
  the 
  farmers 
  giving 
  them 
  

   the 
  exact 
  methods 
  to 
  adopt 
  and 
  supplying 
  them 
  mth 
  the 
  necessary 
  

   ingredients 
  for 
  the 
  poison. 
  In 
  some 
  counties 
  60-70 
  per 
  cent, 
  of 
  the 
  

   insects 
  were 
  killed, 
  in 
  others 
  as 
  many 
  as 
  90 
  per 
  cent. 
  ; 
  in 
  all 
  cases 
  the 
  

   few 
  that 
  remained 
  were 
  kept 
  in 
  check 
  by 
  their 
  natural 
  enemies. 
  

  

  Hunter 
  (S. 
  J.) 
  & 
  Claassen 
  (P. 
  W.). 
  Grasshopper 
  Control 
  in 
  the 
  

   Southern 
  Division 
  of 
  Kansas. 
  — 
  Jl. 
  Econ. 
  Entom., 
  Concord., 
  vii, 
  

   no. 
  1, 
  Feb. 
  1914, 
  pp. 
  73-83, 
  3 
  pi. 
  

  

  The 
  University 
  of 
  Kansas, 
  which 
  for 
  several 
  years 
  has 
  been 
  associated 
  

   with 
  the 
  problem 
  of 
  grasshopper 
  control 
  in 
  the 
  State, 
  organised 
  in 
  1913 
  

   a 
  campaign 
  against 
  these 
  insects, 
  which 
  received 
  the 
  co-operation 
  of 
  

   most 
  of 
  the 
  farmers 
  of 
  Southern 
  Kansas. 
  The 
  method 
  of 
  control 
  

   employed, 
  similar 
  to 
  that 
  employed 
  in 
  Western 
  Kansas, 
  consisted 
  of 
  

   distributing 
  poisoned 
  bran 
  mash 
  in 
  the 
  infested 
  areas. 
  The 
  formula 
  

   for 
  the 
  bran 
  mash 
  was 
  as 
  follows 
  : 
  Paris 
  green 
  or 
  white 
  arsenic 
  2\ 
  lb., 
  

   bran 
  50 
  lb., 
  6 
  oranges 
  or 
  lemons, 
  syrup 
  4 
  qts., 
  water 
  5 
  gals. 
  The 
  dry 
  

   ingredients 
  are 
  mixed 
  together, 
  and 
  then 
  the 
  syrup 
  and 
  oranges 
  or 
  

   lemons 
  ; 
  the 
  water 
  is 
  not 
  added 
  until 
  the 
  day 
  of 
  use. 
  The 
  bait 
  is 
  

   scattered 
  broadcast 
  in 
  the 
  infested 
  areas 
  between 
  5 
  and 
  7 
  o'clock 
  in 
  the 
  

   morning. 
  

  

  (C26) 
  D 
  

  

  