﻿18 
  CONTAGIOUS 
  DISEASES 
  OF 
  THE 
  CHINCH-BUG. 
  

  

  erally 
  spread 
  from 
  the 
  experimental 
  farms 
  is 
  indicated 
  by 
  a 
  large 
  number 
  of 
  

   my 
  correspondents. 
  The 
  following 
  examples 
  are 
  given 
  : 
  

  

  Report 
  No. 
  9. 
  — 
  "In 
  two 
  weeks 
  after 
  putting 
  out 
  infection 
  no 
  bugs 
  could 
  be 
  found 
  

   to 
  speak 
  of, 
  while 
  neighboring 
  fields 
  were 
  in 
  a 
  bad 
  way." 
  

  

  Report 
  No. 
  18. 
  — 
  " 
  I 
  find 
  lots 
  of 
  dead 
  bugs. 
  Those 
  who 
  did 
  not 
  put 
  out 
  infected 
  

   bugs 
  are 
  having 
  trouble 
  with 
  the 
  young 
  bugs." 
  

  

  Report 
  No. 
  26.—" 
  The 
  old 
  bugs 
  are 
  dying 
  very 
  fast, 
  and 
  young 
  bugs 
  also 
  dying. 
  

   I 
  have 
  examined 
  some 
  fields 
  not 
  infected, 
  and 
  can 
  find 
  no 
  dead 
  bugs 
  to 
  speak 
  of 
  — 
  

   one 
  specimen 
  in 
  one 
  field, 
  two 
  or 
  three 
  in 
  others 
  — 
  but 
  I 
  can 
  find 
  them 
  dead 
  by 
  the 
  

   score 
  in 
  my 
  field, 
  so 
  that 
  they 
  make 
  the 
  ground 
  look 
  white 
  in 
  places." 
  

  

  Report 
  No. 
  32. 
  — 
  "On 
  the 
  sixth 
  day 
  of 
  the 
  experiment 
  the 
  bugs 
  collected 
  in 
  bunches 
  

   on 
  the 
  ground 
  and 
  became 
  sluggish. 
  In 
  neighboring 
  fields 
  bugs 
  are 
  numerous 
  and 
  

   in 
  thriving 
  condition." 
  

  

  Report 
  No. 
  55. 
  — 
  "I 
  find 
  some 
  dead 
  bugs 
  and 
  bugs 
  are 
  disappearing, 
  while 
  in 
  a 
  

   field 
  near 
  mine 
  the 
  bugs 
  are 
  numerous." 
  

  

  Report 
  No. 
  57. 
  — 
  "The 
  experiment 
  is 
  a 
  complete 
  success; 
  thousands 
  of 
  dead 
  bugs. 
  

   In 
  neighboring 
  fields, 
  where 
  no 
  infection 
  was 
  put, 
  no 
  dead 
  bugs 
  can 
  be 
  found." 
  

  

  Report 
  No. 
  64. 
  — 
  "Bugs 
  all 
  dead 
  in 
  8 
  to 
  10 
  days 
  after 
  putting 
  out 
  infection. 
  Bugs 
  

   continued 
  in 
  neighboring 
  fields 
  as 
  late 
  as 
  September." 
  

  

  Report 
  No. 
  67. 
  — 
  " 
  Bugs 
  gathered 
  in 
  bunches 
  and 
  died 
  in 
  infected 
  field. 
  Uninfected 
  

   field 
  of 
  same 
  farm 
  had 
  bugs 
  in 
  the 
  fall." 
  

  

  Report 
  No. 
  70. 
  — 
  "In 
  the 
  fall, 
  when 
  neighbors 
  saw 
  how 
  my 
  corn 
  field 
  was 
  cleaned 
  

   of 
  bugs, 
  they 
  said 
  they 
  would 
  try 
  it 
  next 
  year." 
  

  

  Report 
  No. 
  73. 
  — 
  " 
  Can 
  find 
  dead 
  bugs 
  of 
  all 
  sizes 
  in 
  any 
  part 
  of 
  my 
  field. 
  But 
  few 
  

   dead 
  bugs 
  in 
  other 
  fields." 
  

  

  Report 
  No. 
  79. 
  — 
  " 
  Bugs 
  all 
  or 
  nearly 
  all 
  died. 
  Could 
  not 
  hear 
  of 
  any 
  bugs 
  dying 
  

   on 
  any 
  farm 
  where 
  infection 
  was 
  not 
  placed." 
  

  

  Report 
  No. 
  98. 
  — 
  " 
  Bugs 
  in 
  infected 
  corn 
  field 
  all 
  dead. 
  Corn 
  made 
  50 
  bushels 
  per 
  

   acre. 
  Another 
  of 
  my 
  fields 
  not 
  infected 
  made 
  only 
  30 
  bushels 
  per 
  acre." 
  

  

  Report 
  No. 
  101. 
  — 
  " 
  Bugs 
  did 
  not 
  kill 
  more 
  than 
  100 
  stalks 
  of 
  corn. 
  Neighbors 
  who 
  

   did 
  not 
  infect 
  had 
  corn 
  killed 
  for 
  rods." 
  

  

  Report 
  No. 
  102. 
  — 
  "My 
  bugs 
  disappeared, 
  while 
  the 
  neighbors' 
  corn 
  was 
  taken.*' 
  

  

  Report 
  No. 
  103. 
  — 
  " 
  The 
  infection 
  killed 
  the 
  bugs 
  in 
  short 
  order, 
  while 
  on 
  farms 
  

   adjoining 
  mine 
  they 
  did 
  great 
  damage." 
  

  

  Report 
  No. 
  121. 
  — 
  "No 
  young 
  bugs 
  can 
  be 
  found 
  in 
  my 
  field 
  since 
  using 
  your 
  rem- 
  

   edy, 
  while 
  in 
  other 
  fields 
  they 
  are 
  numerous." 
  

  

  Report 
  No. 
  122. 
  — 
  "Infected 
  fields 
  had 
  only 
  dead 
  bugs, 
  and 
  at 
  that 
  time 
  bugs 
  were 
  

   very 
  bad 
  two 
  miles 
  away." 
  

  

  Report 
  No. 
  135. 
  — 
  " 
  On 
  the 
  twelfth 
  day 
  after 
  putting 
  out 
  infection 
  could 
  find 
  dead 
  

   bugs 
  all 
  over 
  my 
  field; 
  could 
  find 
  no 
  dead 
  bugs 
  in 
  neighbors' 
  fields." 
  

  

  Report 
  No. 
  138. 
  — 
  "On 
  my 
  ground 
  and 
  adjacent 
  to 
  it 
  bugs 
  all 
  disappeared, 
  while 
  

   such 
  was 
  not 
  the 
  case 
  with 
  my 
  neighbors' 
  fields." 
  

  

  Report 
  No. 
  141. 
  — 
  "Wheat 
  field 
  cleared 
  of 
  bugs. 
  In 
  two 
  fields 
  near 
  by, 
  into 
  which 
  

   infection 
  was 
  not 
  placed, 
  live 
  bugs 
  have 
  increased 
  in 
  numbers, 
  and 
  now 
  almost 
  cover 
  

   the 
  ground." 
  

  

  Report 
  No. 
  145. 
  — 
  "Bugs 
  began 
  to 
  bunch 
  and 
  die 
  on 
  the 
  seventh 
  day. 
  My 
  oats 
  and 
  

   corn 
  are 
  freed 
  from 
  bugs, 
  while 
  they 
  are 
  increasing 
  in 
  neighboring 
  fields." 
  

  

  