﻿82 
  CONTAGIOUS 
  DISEASES 
  OF 
  THE 
  CHINCH- 
  BUG. 
  

  

  thought 
  for 
  the 
  first 
  five 
  or 
  six 
  days 
  that 
  it 
  would 
  not 
  be 
  a 
  success, 
  but 
  they 
  com- 
  

   menced 
  to 
  die 
  the 
  eighth 
  day, 
  and 
  the 
  twelfth 
  day 
  I 
  could 
  not 
  find 
  a 
  live 
  bug, 
  but 
  

   plenty 
  of 
  dead 
  ones.'' 
  Reported 
  under 
  later 
  date: 
  "The 
  infection 
  saved 
  me 
  250 
  

   bushels 
  of 
  wheat, 
  500 
  of 
  corn, 
  and 
  600 
  of 
  oats." 
  

  

  No. 
  246. 
  John 
  Adams, 
  Barnard, 
  Lincoln 
  county. 
  Applied 
  for 
  aid 
  September 
  18th: 
  

   "I 
  am 
  drilling 
  wheat 
  among 
  my 
  corn, 
  and 
  there 
  are 
  so 
  many 
  chinch-bugs 
  that 
  they 
  

   are 
  likely 
  to 
  destroy 
  the 
  wheat 
  when 
  it 
  comes 
  up." 
  Infection 
  sent 
  September 
  14th; 
  

   experiment 
  successful, 
  as 
  reported 
  October 
  26th: 
  "I 
  placed 
  diseased 
  bugs 
  in 
  differ- 
  

   ent 
  parts 
  of 
  my 
  field. 
  At 
  that 
  time 
  the 
  bugs 
  were 
  very 
  numerous. 
  Shortly 
  after 
  I 
  

   got 
  the 
  diseased 
  bugs 
  I 
  observed 
  a 
  number 
  of 
  dead 
  ones 
  near 
  the 
  places 
  where 
  I 
  set 
  

   the 
  diseased 
  bugs. 
  Since 
  then 
  we 
  have 
  had 
  several 
  cold 
  rains 
  and 
  severe 
  frosts.* 
  I 
  

   have 
  been 
  through 
  the 
  same 
  field 
  to-day, 
  and 
  I 
  can 
  find 
  no 
  bugs, 
  either 
  dead 
  or 
  alive. 
  

   I 
  am 
  confident 
  that 
  the 
  diseased 
  bugs 
  you 
  sent 
  me 
  have 
  effectually 
  cleared 
  my 
  field." 
  

   Under 
  date 
  in 
  November: 
  "On 
  going 
  through 
  the 
  field 
  to-day, 
  I 
  find 
  many 
  dead 
  

   bugs." 
  

  

  No. 
  247. 
  T. 
  W. 
  McGeaby, 
  Tower 
  Springs, 
  Lincoln 
  county. 
  Infection 
  sent 
  July 
  

   22d; 
  experiment 
  successful, 
  as 
  reported 
  October 
  28th: 
  "My 
  experiment 
  with 
  in- 
  

   fected 
  chinch-bugs 
  was 
  most 
  satisfactory. 
  I 
  put 
  out 
  the 
  bugs 
  as 
  directed, 
  in 
  

   sorghum 
  and 
  corn. 
  I 
  had 
  10 
  acres 
  of 
  sorghum, 
  and 
  the 
  bugs 
  commenced 
  on 
  one 
  

   side 
  and 
  killed 
  it 
  as 
  they 
  went. 
  They 
  had 
  taken 
  about 
  four 
  acres 
  before 
  I 
  received 
  

   the 
  infection. 
  They 
  seemed 
  to 
  stop 
  operations 
  immediately, 
  and 
  in 
  7 
  to 
  10 
  days 
  

   they 
  were 
  about 
  all 
  dead. 
  Where 
  I 
  first 
  put 
  out 
  the 
  bugs, 
  in 
  a 
  day 
  or 
  two 
  they 
  

   became 
  very 
  restless, 
  then 
  began 
  to 
  die. 
  I 
  put 
  some 
  in 
  corn 
  with 
  the 
  same 
  results. 
  

   They 
  did 
  very 
  little 
  harm 
  to 
  the 
  corn. 
  I 
  am 
  of 
  the 
  opinion 
  that 
  if 
  I 
  had 
  received 
  

   the 
  bugs 
  sooner 
  I 
  could 
  have 
  saved 
  all 
  my 
  sorghum. 
  I 
  think 
  your 
  experiment 
  is 
  

   all 
  you 
  claim 
  for 
  it." 
  Under 
  later 
  date: 
  "I 
  saved 
  100 
  bushels 
  of 
  corn 
  and 
  $60 
  worth 
  

   of 
  sorghum." 
  

  

  No. 
  248. 
  F. 
  W. 
  Blair, 
  Emporia, 
  Lyon 
  county. 
  Applied 
  for 
  aid 
  July 
  3d. 
  Infec- 
  

   tion 
  sent 
  July 
  6th; 
  experiment 
  successful, 
  as 
  reported 
  July 
  25th: 
  "I 
  did 
  not 
  notice 
  

   any 
  change 
  in 
  the 
  condition 
  of 
  the 
  bugs 
  until 
  seven 
  days 
  after 
  the 
  infection 
  had 
  

   been 
  put 
  out, 
  when 
  I 
  found 
  them 
  leaving 
  the 
  corn 
  and 
  crawling 
  over 
  the 
  ground. 
  

   The 
  next 
  day 
  they 
  had 
  nearly 
  all 
  left 
  the 
  corn 
  and 
  were 
  trying 
  to 
  get 
  under 
  clods 
  

   and 
  into 
  cracks. 
  I 
  found 
  several 
  dead 
  bugs 
  and 
  a 
  great 
  many 
  in 
  a 
  dying 
  condition 
  

   — 
  that 
  is, 
  around 
  where 
  the 
  infection 
  had 
  been 
  placed. 
  The 
  disease 
  appeared 
  to 
  

   spread 
  rapidly, 
  and 
  on 
  the 
  thirteenth 
  day 
  I 
  could 
  find 
  dead 
  and 
  dying 
  bugs 
  every- 
  

   where. 
  Since 
  then 
  they 
  have 
  nearly 
  all 
  disappeared." 
  

  

  No. 
  249. 
  J. 
  W. 
  Brewer, 
  Emporia, 
  Lyon 
  county. 
  Infection 
  sent 
  June 
  24th; 
  ex- 
  

   periment 
  successful, 
  as 
  reported 
  December 
  27th: 
  "I 
  put 
  the 
  infected 
  bugs 
  in 
  the 
  oat 
  

   field 
  that 
  lay 
  next 
  the 
  wheat 
  field. 
  The 
  bugs 
  had 
  migrated 
  very 
  thick 
  from 
  6 
  to 
  10 
  

   feet 
  into 
  the 
  oats. 
  In 
  four 
  days 
  I 
  could 
  see 
  the 
  bugs 
  lying 
  in 
  piles. 
  They 
  continued 
  

   to 
  die 
  off 
  for 
  some 
  time, 
  and 
  did 
  not 
  at 
  any 
  time 
  get 
  more 
  than 
  15 
  feet 
  into 
  the 
  oats. 
  

   In 
  two 
  weeks 
  the 
  bugs 
  were 
  nearly 
  all 
  gone, 
  but 
  they 
  seemed 
  to 
  recruit 
  again 
  as 
  the 
  

   weather 
  became 
  warmer 
  and 
  dry, 
  and 
  they 
  did 
  lots 
  of 
  damage 
  to 
  the 
  corn 
  in 
  the 
  latter 
  

   part 
  of 
  the 
  season. 
  I 
  did 
  not 
  know 
  whether 
  your 
  diseased 
  bugs 
  did 
  me 
  any 
  good 
  or 
  

   not, 
  as 
  I 
  believe 
  the 
  bugs 
  had 
  the 
  same 
  infection 
  when 
  I 
  received 
  your 
  bugs." 
  Re- 
  

   marks: 
  If 
  the 
  same 
  infection 
  already 
  existed 
  in 
  the 
  field 
  when 
  this 
  experiment 
  was 
  

   begun, 
  it 
  probably 
  was 
  communicated 
  from 
  fields 
  in 
  Lyon 
  county 
  to 
  which 
  infection 
  

   had 
  been 
  sent 
  from 
  the 
  laboratory. 
  To 
  get 
  the 
  best 
  results, 
  the 
  infecting 
  process 
  

   must 
  be 
  repeated 
  during 
  the 
  season, 
  whenever 
  required 
  by 
  inroads 
  from 
  some 
  neigh- 
  

   boring 
  farm. 
  

  

  No. 
  250. 
  W. 
  O. 
  Ferguson, 
  Emporia, 
  Lyon 
  county. 
  Infection 
  sent 
  September 
  

  

  