﻿PACKARD.] 
  THE 
  BEAN- 
  WEEVIL. 
  767 
  

  

  pea 
  is 
  iDlanted. 
  Sometimes 
  every 
  pea 
  in 
  a 
  pod 
  contains 
  a 
  grub. 
  So 
  

   numerous 
  at 
  times 
  is 
  it 
  that 
  the 
  cultivation 
  of 
  the 
  pea 
  has 
  been 
  aban- 
  

   doned. 
  By 
  diminishing 
  the 
  weight 
  of 
  the 
  pea 
  it 
  causes 
  a 
  great 
  loss 
  in 
  

   the 
  crop, 
  

  

  The 
  pea-weevil 
  is 
  a 
  native 
  of 
  this 
  country, 
  and 
  has 
  been 
  introduced 
  

   into 
  Southern 
  and 
  Central 
  Europe. 
  It 
  was 
  first 
  noticed 
  by 
  gardeners 
  as 
  

   injurious 
  in 
  Pennsylvania, 
  but 
  is 
  now 
  abundant 
  all 
  over 
  the 
  Northern 
  

   -and 
  Western 
  States. 
  

  

  Eemedies. 
  — 
  The 
  seed 
  should 
  be 
  kept 
  sealed 
  up 
  in 
  tin 
  cans 
  over 
  one 
  year 
  

   before 
  planting. 
  In 
  this 
  way 
  the 
  weevils, 
  which 
  live 
  but 
  a 
  single 
  year, 
  

   would 
  die 
  before 
  being 
  liberated. 
  It 
  is 
  also 
  customary 
  to 
  soak 
  peas 
  in 
  

   boiling 
  water 
  for 
  a 
  few 
  minutes 
  before 
  planting,- 
  by 
  so 
  doing 
  the 
  sprout- 
  

   ing 
  of 
  the 
  seed 
  will 
  be 
  hastened 
  and 
  the 
  peas 
  get 
  their 
  growth 
  in 
  part 
  

   before 
  the 
  weevils 
  attack 
  them. 
  As 
  the 
  weevils 
  appear 
  only 
  once 
  during 
  

   the 
  summer, 
  at 
  the 
  time 
  when 
  the 
  pea 
  usually 
  flowers, 
  if 
  a 
  second 
  crop 
  

   is 
  planted, 
  they 
  will 
  be 
  free 
  from 
  the 
  attacks 
  of 
  weevils. 
  

  

  The 
  crow 
  blackbird 
  is 
  known 
  to 
  destroy 
  great 
  numbers 
  of 
  weevils 
  in 
  

   spring, 
  and 
  the 
  Baltimore 
  oriole 
  splits 
  open 
  the 
  green 
  pods 
  in 
  search 
  for 
  

   ^rubs. 
  

  

  INSECTS 
  INFESTING 
  THE 
  BEAN. 
  

  

  The 
  Bean-Wkevil, 
  Bniclms 
  fabce 
  Riley 
  (Fig. 
  34). 
  — 
  Injuring 
  beans 
  in 
  the 
  same 
  

   manner 
  as 
  peas, 
  except 
  that 
  the 
  beans 
  are 
  tenanted 
  by 
  several 
  weevils 
  ; 
  a 
  similar 
  but 
  

   smaller 
  weevil. 
  

  

  This 
  very 
  destructive 
  weevil 
  seems, 
  according 
  to 
  Mr. 
  Eiley, 
  to 
  be 
  indig- 
  

   enous, 
  and 
  has 
  become 
  injurious 
  in 
  the 
  vicinity 
  of 
  New 
  York, 
  in 
  Illi- 
  

   nois, 
  and 
  in 
  Missouri, 
  bidding 
  fair 
  to 
  become 
  a 
  most 
  

   formidable 
  pest 
  of 
  our 
  bean-crop. 
  Mr. 
  Angus 
  has 
  been 
  

   the 
  first 
  to 
  detect 
  its 
  ravages, 
  having 
  found 
  it 
  to 
  be 
  

   already 
  very 
  destructive 
  at 
  West 
  Farms, 
  N. 
  Y. 
  Sev- 
  

   eral 
  years 
  since 
  he 
  sent 
  me 
  specimens, 
  and 
  in 
  1870 
  

   wrote 
  me 
  more 
  particularly 
  about 
  its 
  ravages, 
  as 
  fol- 
  

   lows 
  : 
  " 
  I 
  also 
  send 
  you 
  a 
  sample 
  of 
  beans, 
  which 
  I 
  

   think 
  will 
  startle 
  you, 
  if 
  you 
  have 
  not 
  seen 
  such 
  be- 
  

   fore. 
  I 
  discovered 
  this 
  beetle 
  in 
  the 
  kidney 
  or 
  bush 
  

   beans 
  a 
  few 
  years 
  ago, 
  and 
  they 
  have 
  been 
  greatly 
  on 
  

   the 
  increase 
  every 
  year 
  since. 
  I 
  might 
  say 
  much 
  on 
  

   the 
  gloomy 
  prospect 
  before 
  us 
  in 
  the 
  cultivation 
  of 
  Fig. 
  34.— 
  Grub 
  

   this 
  important 
  garden 
  and 
  farm 
  product, 
  if 
  the 
  work 
  Bean-Weevil, 
  

   of 
  this 
  insect 
  is 
  not 
  cut 
  short 
  by 
  some 
  means 
  or 
  other. 
  The 
  pea 
  bruchus 
  

   is 
  bad 
  enough, 
  but 
  this 
  is 
  worse." 
  

  

  Description. 
  — 
  It 
  closely 
  resembles 
  the 
  pea-weevil 
  (Bruchus 
  pisi). 
  It 
  is 
  rather 
  smaller 
  

   than 
  the 
  pea-weevil, 
  measuring 
  0.15 
  of 
  an 
  inch 
  in 
  length, 
  while 
  the 
  latter 
  is 
  0.20 
  of 
  an 
  

   inch 
  in 
  length. 
  Compared 
  with 
  that 
  insect, 
  it 
  is 
  lighter 
  and 
  more 
  uniform 
  in 
  color, 
  be- 
  

   ing 
  of 
  a 
  tawny-gray, 
  without 
  the 
  white 
  spots 
  so 
  conspicuous 
  in 
  B.2}isi. 
  The 
  uniform 
  

   tawny-gray 
  elytra 
  are 
  spotted 
  with 
  a 
  few 
  oblong 
  dark 
  spots, 
  situated 
  between 
  the 
  

   striae 
  ; 
  the 
  antennae 
  also 
  differ 
  in 
  having 
  the 
  four 
  basal 
  joints 
  more 
  reddish 
  than 
  in 
  B, 
  

   pisi, 
  while 
  the 
  terminal 
  joint 
  is 
  red, 
  being 
  blackish-brown 
  in 
  B. 
  pisi. 
  The 
  fore 
  legs 
  are 
  

   much 
  redder, 
  and 
  the 
  two 
  hind 
  pairs 
  are 
  reddish 
  where 
  they 
  are 
  dark 
  brown 
  in 
  B. 
  pisi. 
  

   The 
  spine 
  on 
  the 
  hind 
  femora 
  is 
  smaller 
  but 
  longer, 
  and 
  the 
  antennae 
  are 
  flatter, 
  the 
  

   joints 
  being 
  farther 
  separated, 
  and 
  the 
  whole 
  body 
  narrower 
  than 
  in 
  B. 
  xiisi. 
  

  

  The 
  larva 
  (Fig. 
  33) 
  is 
  short, 
  thick, 
  fleshy, 
  footless, 
  and 
  about 
  \ 
  inch 
  long. 
  The 
  pupa 
  

   is 
  white, 
  and 
  measures 
  0.17 
  of 
  an 
  inch 
  in 
  length. 
  The 
  head 
  is 
  laid 
  upon 
  the 
  breast, 
  

   the 
  red 
  tip 
  of 
  the 
  mandibles 
  reaching 
  to 
  the 
  base 
  of 
  the 
  tarsi 
  of 
  the 
  first 
  pair 
  of 
  feet. 
  

   The 
  two 
  front 
  pair 
  of 
  legs 
  are 
  folded 
  on 
  the 
  breast 
  at 
  right 
  angles 
  to 
  the 
  body, 
  the 
  

   tarsi 
  of 
  the 
  second 
  pair 
  reaching 
  a 
  little 
  beyond 
  the 
  anterior 
  third 
  of 
  the 
  body, 
  while 
  

   the 
  hind 
  pair 
  are 
  concealed 
  beneath 
  the 
  wings. 
  The 
  elytra 
  are 
  laid 
  along 
  the 
  side 
  of 
  

   the 
  body, 
  directed 
  obliquely 
  downward, 
  and 
  are 
  marked 
  with 
  deep 
  longitudinal 
  ribs 
  ; 
  

   the 
  under 
  or 
  hind 
  pair 
  of 
  wings, 
  which 
  are 
  much 
  narrower 
  than 
  the 
  elytra, 
  project 
  

  

  