﻿10 
  CONTAGIOUS 
  DISEASES 
  OP 
  THE 
  CHINCH-BUG. 
  

  

  Report 
  No. 
  135. 
  — 
  "Infection 
  got 
  away 
  with 
  young 
  bugs 
  as 
  well 
  as 
  old." 
  

   Report 
  No. 
  141. 
  — 
  "No 
  old 
  bugs 
  left 
  alive, 
  and 
  but 
  few 
  young 
  ones." 
  

   Report 
  No. 
  144. 
  — 
  "Young 
  brood, 
  as 
  well 
  as 
  old 
  brood, 
  completely 
  exterminated." 
  

   Report 
  No. 
  166.— 
  "Wheat 
  field 
  thick 
  with 
  small, 
  red 
  bugs; 
  all 
  disappeared 
  in 
  10 
  

   days; 
  did 
  not 
  touch 
  corn." 
  

  

  Report 
  No. 
  176. 
  — 
  "Bugs 
  died 
  by 
  hundreds, 
  from 
  full 
  grown 
  to 
  mere 
  specks." 
  

   Report 
  No. 
  181.—" 
  Old 
  bugs 
  disappeared, 
  and 
  in 
  a 
  few 
  days 
  young 
  bugs 
  bunched 
  

   and 
  died. 
  Corn 
  not 
  touched." 
  

  

  Report 
  No. 
  184. 
  — 
  "Old 
  bugs 
  died; 
  young 
  ones 
  did 
  not 
  hatch 
  out. 
  In 
  neighbor- 
  

   ing 
  fields, 
  bugs 
  numerous, 
  old 
  and 
  young." 
  

  

  Report 
  No. 
  189. 
  — 
  "Old 
  bugs 
  entirely 
  exterminated; 
  young 
  bugs 
  scarce." 
  

   Report 
  No. 
  206. 
  — 
  " 
  On 
  fifth 
  day 
  bugs 
  were 
  dying. 
  They 
  were 
  young 
  and 
  had 
  no 
  

   wings." 
  

  

  Report 
  No. 
  215. 
  — 
  " 
  Young 
  and 
  old 
  died." 
  

  

  Report 
  No. 
  234. 
  — 
  "Young 
  bugs 
  hatched 
  out, 
  but 
  they 
  soon 
  died." 
  

   Report 
  No. 
  238. 
  — 
  "Found 
  young 
  bugs 
  looking 
  like 
  frost 
  upon 
  the 
  ground." 
  

   Report 
  No. 
  242. 
  — 
  "Young 
  bugs 
  hatched 
  out 
  but 
  seemed 
  to 
  die 
  off 
  and 
  disappear." 
  

   Report 
  No. 
  254. 
  — 
  "Young 
  bugs 
  completely 
  covered 
  with 
  white 
  fungus. 
  

   Report 
  No. 
  283. 
  — 
  "Young 
  bugs 
  seem 
  to 
  die 
  more 
  than 
  older 
  ones; 
  covered 
  with 
  

   white 
  fungus." 
  

  

  Report 
  No. 
  293. 
  — 
  " 
  Young 
  bugs 
  died 
  and 
  turned 
  white." 
  

   Report 
  No. 
  296. 
  — 
  "In 
  one 
  week 
  bugs 
  began 
  to 
  die; 
  mostly 
  young 
  bugs." 
  

   Report 
  No. 
  308. 
  — 
  "Noticed 
  in 
  vicinity 
  where 
  sick 
  bugs 
  were 
  placed 
  that 
  little, 
  red 
  

   bugs 
  were 
  dead." 
  

  

  Report 
  No. 
  313. 
  — 
  "After 
  a 
  few 
  days 
  found 
  old 
  bugs 
  dying, 
  and 
  ants 
  eating 
  them." 
  

   Report 
  No. 
  333. 
  — 
  "Young 
  bugs 
  died 
  in 
  great 
  numbers." 
  

  

  Report 
  No. 
  376. 
  — 
  "Corn 
  alive 
  with 
  little, 
  red 
  bugs; 
  no 
  further 
  damage 
  after 
  in- 
  

   fection 
  was 
  introduced; 
  bugs 
  died 
  by 
  millions." 
  

  

  Report 
  No. 
  392. 
  — 
  " 
  It 
  killed 
  young 
  as 
  well 
  as 
  old, 
  and 
  now 
  I 
  seldom 
  see 
  a 
  bug. 
  

   Report 
  No. 
  410. 
  — 
  "Young 
  bugs 
  disappeared 
  before 
  half 
  grown." 
  

   Report 
  No. 
  451. 
  — 
  "In 
  10 
  days 
  old 
  and 
  young 
  were 
  dying 
  alike. 
  

  

  Report 
  No. 
  460. 
  — 
  "Field 
  alive 
  with 
  young 
  bugs, 
  but 
  in 
  10 
  days 
  after 
  infection 
  

   bugs 
  all 
  died." 
  

  

  Report 
  No. 
  464. 
  — 
  " 
  In 
  eight 
  days 
  found 
  the 
  small, 
  red 
  bug's 
  had 
  disappeared 
  in 
  

   that 
  part 
  of 
  field 
  where 
  infection 
  was 
  put." 
  

  

  See, 
  also, 
  the 
  report 
  of 
  Mr. 
  Hickey, 
  my 
  field 
  agent, 
  page 
  25. 
  

  

  TIME 
  REQUIRED 
  TO 
  CHECK 
  RAVAGES 
  OF 
  BUGS 
  IN 
  FIELD. 
  

  

  Another 
  important 
  point 
  which 
  was 
  established 
  by 
  the 
  experiments 
  of 
  the 
  

   year 
  1891 
  relates 
  to 
  the 
  length 
  of 
  time 
  required 
  after 
  the 
  introduction 
  of 
  in- 
  

   fection 
  into 
  a 
  field 
  before 
  the 
  ravages 
  of 
  chinch-bugs 
  in 
  that 
  field 
  are 
  sub- 
  

   stantially 
  terminated. 
  The 
  evidence 
  is 
  abundant 
  that, 
  as 
  a 
  rule, 
  only 
  about 
  

   four 
  days 
  elapse 
  after 
  the 
  introduction 
  of 
  infection 
  before 
  the 
  mass 
  of 
  the 
  bugs 
  

   in 
  the 
  vicinity 
  of 
  the 
  spot 
  where 
  the 
  infection 
  is 
  put 
  entirely 
  cease 
  from 
  

   their 
  work 
  of 
  destruction. 
  In 
  corn 
  fields 
  where 
  the 
  stalks 
  were 
  black 
  with 
  

  

  