﻿REMEDIES 
  AGAINST 
  CANKER 
  WORM. 
  197 
  

  

  <5aus6 
  I 
  tried 
  the 
  experiment 
  with 
  3 
  or 
  4 
  9 
  , 
  and 
  found 
  that 
  as 
  soon 
  as 
  they 
  reached 
  the 
  

   top 
  of 
  the 
  band, 
  they 
  climbed 
  over 
  it, 
  and 
  began 
  to 
  ascend 
  the 
  tree. 
  Being 
  satisfied 
  

   hy 
  this 
  positive 
  evidence, 
  which 
  would 
  outweigh 
  any 
  amount 
  of 
  negative 
  evidence 
  

   from 
  those 
  who 
  have 
  7iot 
  seen 
  it, 
  I 
  put 
  printers' 
  ink 
  on 
  the 
  outside 
  of 
  the 
  zinc 
  strips. 
  

   (I 
  found 
  that 
  the 
  ink 
  was 
  more 
  quickly 
  chilled 
  or 
  dried 
  by 
  being 
  on 
  the 
  zinc, 
  so 
  last 
  

   winter 
  I 
  pulled 
  it 
  off 
  and 
  inked 
  paper 
  bands 
  applied 
  closely 
  to 
  the 
  trunk. 
  ) 
  

  

  Dec. 
  5. 
  Colder, 
  25 
  ^ 
  , 
  71 
  2 
  pometaiia. 
  The 
  greater 
  proportion 
  of 
  the 
  cf 
  than 
  formerly 
  

   as 
  explained 
  by 
  considering 
  that 
  most 
  of 
  them 
  were 
  stuck 
  to 
  the 
  ink, 
  whereas 
  formerly 
  

   ihey 
  could 
  hide 
  away 
  by 
  day. 
  It 
  is 
  to 
  be 
  noticed 
  that 
  although 
  some 
  images 
  appeared 
  

   before 
  the 
  frost, 
  they 
  only 
  swarm 
  after 
  it, 
  justifying 
  the 
  farmers' 
  saying 
  that 
  you 
  

   jnuat 
  have 
  a 
  frost 
  to 
  bring 
  the 
  canker-grubs 
  out. 
  

  

  ^' 
  In 
  brief, 
  all 
  the 
  more 
  important 
  measures 
  to 
  be 
  pursued 
  in 
  our 
  war- 
  

   fare 
  against 
  the 
  Spring 
  Canker 
  Worm 
  — 
  such 
  as 
  the 
  use 
  of 
  hindrances 
  

   to 
  the 
  ascensions 
  of 
  the 
  moths 
  in 
  spring 
  j 
  the 
  removal 
  of 
  all 
  loose 
  bark, 
  

   and 
  keeping 
  the 
  trunk 
  and 
  limbs 
  as 
  smooth 
  and 
  clean 
  as 
  possible; 
  the 
  

   •employment 
  of 
  hogs, 
  and 
  fall 
  plowing 
  — 
  are, 
  in 
  the 
  main, 
  useless 
  as 
  directed 
  

   against 
  the 
  Fall 
  Canker 
  Worm, 
  which 
  must 
  be 
  fought 
  principally 
  by 
  traps 
  

   or 
  barriers 
  applied 
  to 
  the 
  tree 
  in 
  the 
  fall 
  to 
  prevent 
  the 
  climbing 
  of 
  the 
  

   moths, 
  which 
  mostly 
  issue 
  at 
  that 
  season. 
  Important 
  points 
  like 
  these 
  

   -cannot 
  be 
  too 
  often 
  insisted 
  on, 
  because 
  I 
  find 
  that 
  our 
  horticultural 
  

   writers 
  yet 
  very 
  generally 
  speak 
  of 
  the 
  Canker 
  Worm 
  as 
  though 
  there 
  

   were 
  only 
  one 
  species 
  in 
  the 
  country, 
  and 
  give 
  general 
  directions 
  which 
  

   of 
  course 
  are 
  more 
  or 
  less 
  misleading. 
  I 
  find, 
  too, 
  that 
  even 
  where 
  the 
  

   •differences 
  pointed 
  out 
  have 
  been 
  recognized, 
  they 
  have 
  not 
  always 
  

   been 
  properly 
  apprehended, 
  as 
  has 
  been 
  shown; 
  so 
  that 
  in 
  the 
  report 
  of 
  

   a 
  lecture 
  before 
  the 
  Iowa 
  Agricultural 
  College 
  it 
  is 
  erroneously 
  stated 
  

   that 
  the 
  eggs 
  of 
  the 
  Fall 
  Canker 
  Worm 
  hatch 
  in 
  the 
  fall 
  of 
  the 
  year, 
  

   whereas, 
  while 
  the 
  moths 
  rise 
  and 
  lay 
  their 
  eggs 
  at 
  that 
  season, 
  these 
  

   eggs 
  do 
  not 
  hatch 
  any 
  earlier 
  than 
  do 
  those 
  of 
  the 
  Spring 
  species." 
  

  

  The 
  undeniable 
  difficulties 
  in 
  coping 
  with 
  these 
  insects, 
  arising 
  from 
  

   a 
  natural 
  disinclination 
  of 
  men 
  to 
  fix 
  their 
  attention 
  and 
  perseverance 
  so 
  

   long 
  upon 
  one 
  object, 
  although 
  the 
  means 
  are 
  so 
  simple, 
  have 
  discouraged 
  

   many 
  orchardists; 
  and 
  the 
  editor 
  of 
  the 
  New 
  England 
  Farmer^ 
  in 
  answer 
  

   to 
  a 
  correspondent, 
  advises 
  the 
  felling 
  and 
  burning 
  of 
  all 
  infested 
  

   trees 
  from 
  one 
  end 
  of 
  the 
  State 
  to 
  the 
  other, 
  by 
  virtue 
  of 
  a 
  special 
  law 
  

   to 
  be 
  passed 
  for 
  that 
  purpose, 
  ''' 
  even 
  if 
  it 
  takes 
  all 
  summer 
  and 
  every 
  

   militia 
  man 
  in 
  tJie 
  State 
  to 
  execute 
  the 
  order." 
  

  

  Mr. 
  B. 
  D. 
  Walsh, 
  in 
  commenting 
  on 
  this 
  advice™ 
  says: 
  — 
  "Instead 
  

   of 
  advising 
  the 
  Michigan 
  legislature 
  to 
  pass 
  a 
  law 
  for 
  cutting 
  down 
  

   and 
  destroying 
  all 
  trees 
  infested 
  by 
  the 
  Canker 
  Worm, 
  why 
  not 
  advise 
  

   them 
  to 
  pass 
  a 
  law 
  compelling 
  the 
  owners 
  of 
  infested 
  trees 
  to 
  tar 
  

   them 
  as 
  above 
  specified 
  ! 
  Or, 
  better 
  still, 
  because 
  more 
  certain 
  to 
  be 
  

   effectual, 
  to 
  pass 
  a 
  law 
  organizing 
  a 
  paid 
  corps 
  of 
  men 
  in 
  the 
  infested 
  

   districts 
  to 
  do 
  the 
  work? 
  There 
  would 
  then 
  he 
  no 
  occasion 
  to 
  call 
  out 
  the 
  

   militia, 
  A 
  man 
  might 
  shoulder 
  his 
  rifle, 
  if 
  he 
  saw 
  the 
  sheriff 
  and 
  his 
  

   posse 
  coming, 
  ax 
  in 
  hand, 
  to 
  cut 
  down 
  his 
  orchard; 
  but 
  he 
  would 
  only 
  

   laugh 
  when 
  he 
  saw 
  them 
  charging, 
  double-quick, 
  upon 
  his 
  apple-trees, 
  

   with 
  presented 
  tar-brushes." 
  

  

  Piact. 
  Entoiiu, 
  v. 
  2, 
  p. 
  16-17. 
  

  

  