﻿68 
  CONTAGIOUS 
  DISEASES 
  OF 
  THE 
  CHINCH-BUG. 
  

  

  bugs 
  were 
  very 
  thick 
  in 
  his 
  oats 
  and 
  corn 
  when 
  the 
  infected 
  bugs 
  were 
  introduced. 
  

   In 
  a 
  short 
  time 
  they 
  all 
  disappeared 
  and 
  he 
  succeeded 
  in 
  raising 
  a 
  good 
  crop 
  of 
  oats." 
  

   Mr. 
  Hickey: 
  "Dead 
  bugs 
  found 
  on 
  eighth 
  day 
  after 
  introduced. 
  Bugs 
  not 
  dying 
  in 
  

   fields 
  where 
  contagion 
  has 
  not 
  been 
  placed." 
  

  

  No. 
  176. 
  W. 
  Gluyas, 
  Severy, 
  Greenwood 
  county. 
  Applied 
  for 
  aid 
  May 
  7th: 
  

   "Bugs 
  plenty 
  in 
  the 
  wheat." 
  Infection 
  sent 
  June 
  1st; 
  experiment 
  successful, 
  as 
  re- 
  

   ported 
  October 
  19th: 
  " 
  The 
  infected 
  bugs 
  were 
  duly 
  received 
  about 
  two 
  weeks 
  before 
  

   wheat 
  harvest. 
  The 
  weather 
  was 
  very 
  favorable, 
  being 
  wet 
  and 
  heavy 
  dews. 
  The 
  

   infection 
  soon 
  spread 
  over 
  my 
  wheat 
  field 
  of 
  two 
  and 
  one-half 
  acres, 
  which 
  was 
  well- 
  

   filled 
  with 
  bugs. 
  It 
  killed 
  them 
  off 
  in 
  good 
  shape, 
  and 
  when 
  they 
  went 
  into 
  the 
  oats 
  

   it 
  was 
  astonishing 
  how 
  fast 
  it 
  cleaned 
  them 
  out. 
  Where 
  a 
  bundle 
  was 
  left 
  on 
  the 
  

   ground, 
  they 
  would 
  be 
  dead 
  under 
  it 
  by 
  the 
  hundreds, 
  all 
  sizes 
  from 
  the 
  full-grown 
  

   to 
  the 
  merest 
  speck. 
  Although 
  we 
  have 
  had 
  but 
  very 
  little 
  rain 
  since 
  June, 
  their 
  

   damage 
  in 
  the 
  corn 
  field 
  was 
  not 
  perceptible. 
  I 
  have 
  never 
  seen 
  corn 
  go 
  through 
  

   such 
  a 
  drouth 
  without 
  being 
  damaged 
  by 
  bugs 
  before. 
  I 
  did 
  not 
  get 
  them 
  early 
  

   enough 
  in 
  the 
  season 
  to 
  save 
  the 
  wheat." 
  Under 
  November 
  date: 
  "The 
  bugs 
  were 
  

   20 
  rows 
  into 
  my 
  corn 
  field 
  when 
  I 
  stopped 
  them. 
  I 
  find 
  the 
  yield 
  to 
  be 
  two 
  bushels 
  

   less 
  per 
  row 
  in 
  the 
  first 
  20 
  rows. 
  On 
  this 
  basis 
  the 
  infection 
  saved 
  me 
  380 
  bushels." 
  

  

  No. 
  177. 
  J. 
  P. 
  Gbiblin, 
  Virgil, 
  Greenwood 
  county. 
  Applied 
  for 
  aid 
  June 
  25th: 
  

   " 
  The 
  bugs 
  are 
  leaving 
  my 
  rye 
  field 
  and 
  going 
  into 
  other 
  crops." 
  Experiment 
  suc- 
  

   cessful, 
  as 
  reported 
  November 
  3d: 
  "The 
  experiment 
  was 
  entirely 
  satisfactory, 
  as 
  it 
  

   was 
  only 
  a 
  short 
  time 
  after 
  introducing 
  the 
  infected 
  bugs 
  before 
  the 
  others 
  all 
  died. 
  

   It 
  was 
  damp 
  when 
  I 
  put 
  them 
  in 
  the 
  field. 
  They 
  had 
  eaten 
  into 
  pieces 
  of 
  millet 
  and 
  

   corn 
  and 
  entirely 
  killed 
  what 
  they 
  had 
  passed 
  over, 
  but 
  after 
  introducing 
  your 
  in- 
  

   fection 
  scarcely 
  any 
  more 
  was 
  eaten." 
  Under 
  November 
  date: 
  "If 
  the 
  bugs 
  had 
  

   continued 
  as 
  they 
  began 
  they 
  would 
  have 
  destroyed 
  almost 
  everything. 
  They 
  left 
  

   the 
  rye 
  and 
  went 
  into 
  the 
  millet 
  and 
  milo-maize 
  and 
  thence 
  into 
  the 
  corn, 
  but 
  that 
  

   was 
  saved 
  — 
  about 
  1,200 
  bushels. 
  Corn 
  sold 
  at 
  45 
  cents 
  besides 
  the 
  shocks. 
  Twenty 
  

   tons 
  of 
  millet 
  and 
  10 
  tons 
  of 
  milo-maize 
  were 
  also 
  saved." 
  

  

  No. 
  178. 
  Chas. 
  M. 
  Hamilton, 
  Hamilton, 
  Greenwood 
  county. 
  Infection 
  sent 
  May 
  

   9th 
  and 
  re-sent 
  June 
  2d; 
  experiment 
  successful, 
  as 
  reported 
  January 
  18th: 
  "At 
  the 
  

   time 
  of 
  receiving 
  the 
  second 
  lot 
  of 
  infected 
  chinch-bugs 
  I 
  had 
  ceased 
  to 
  expect 
  

   any 
  crop 
  of 
  wheat 
  from 
  my 
  patch, 
  and 
  my 
  chief 
  desire 
  was 
  to 
  prevent 
  the 
  migra- 
  

   tion 
  of 
  the 
  bugs 
  from 
  the 
  five-acre 
  wheat 
  patch 
  to 
  the 
  cornfields 
  upon 
  opposite 
  

   sides 
  of 
  same. 
  The 
  wheat 
  field 
  had 
  been 
  literally 
  alive 
  with 
  bugs 
  all 
  over 
  the 
  ground 
  

   and 
  upon 
  the 
  wheat 
  plants, 
  in 
  all 
  stages 
  of 
  growth 
  and 
  development. 
  Very 
  soon 
  

   after 
  receiving 
  the 
  second 
  lot 
  of 
  bugs 
  from 
  you 
  and 
  before 
  I 
  thought 
  the 
  latter 
  had 
  

   had 
  time 
  to 
  produce 
  a 
  general 
  effect 
  upon 
  the 
  pests 
  of 
  my 
  field, 
  I 
  noticed 
  the 
  pe- 
  

   culiar 
  condition 
  and 
  behavior 
  of 
  the 
  bugs, 
  and 
  gave 
  credit 
  to 
  the 
  earlier 
  infection. 
  

   The 
  wheat 
  had 
  become 
  dry 
  and 
  lifeless, 
  and 
  I 
  thought 
  the 
  critical 
  juncture 
  for 
  my 
  

   corn 
  had 
  arrived, 
  so 
  I 
  noticed 
  closely 
  the 
  actions 
  and 
  condition 
  of 
  my 
  bugs 
  in 
  the 
  

   wheat. 
  Where 
  they 
  had 
  been 
  pretty 
  evenly 
  distributed 
  over 
  the 
  ground, 
  they 
  were 
  

   now 
  collected 
  in 
  circular 
  compact 
  groups 
  upon 
  bare 
  patches 
  of 
  ground. 
  These 
  

   groups 
  or 
  colonies 
  varied 
  in 
  size, 
  but 
  not 
  much. 
  A 
  circle 
  one 
  rod 
  in 
  diameter 
  might 
  

   contain 
  two 
  or 
  three 
  such 
  groups. 
  They 
  did 
  not 
  move 
  in 
  the 
  least 
  unless 
  dis- 
  

   turbed, 
  and 
  appeared 
  to 
  be 
  sick 
  — 
  different 
  ones 
  in 
  different 
  stages. 
  Quite 
  a 
  num- 
  

   ber 
  were 
  covered 
  with 
  white 
  fungus 
  like 
  the 
  bugs 
  I 
  had 
  just 
  received, 
  and 
  not 
  a 
  few 
  

   dead 
  ones, 
  these 
  generally 
  near 
  or 
  beyond 
  the 
  border 
  of 
  the 
  little 
  circular 
  groups. 
  

   I 
  concluded 
  that 
  they 
  had 
  all 
  ' 
  come 
  home 
  to 
  die.' 
  The 
  outcome 
  of 
  my 
  corn 
  seemed 
  

   to 
  justify 
  this 
  conclusion, 
  for 
  with 
  the 
  exception 
  of 
  the 
  very 
  marginal 
  rows 
  it 
  was 
  

   not 
  affected 
  perceptibly 
  by 
  the 
  bugs 
  and 
  made 
  a 
  good 
  yield." 
  

  

  