﻿ggO 
  • 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  report, 
  1899, 
  p. 
  538) 
  aith 
  a 
  closely 
  related 
  species, 
  Systena 
  fron- 
  

   talis 
  Foerst. 
  on 
  sugar 
  beets. 
  The 
  attack 
  of 
  the 
  latter 
  was 
  very 
  

   sudden, 
  and 
  investigation 
  showed 
  that 
  the 
  beetles 
  existed 
  in 
  large 
  

   numbers 
  on 
  weeds 
  growing 
  near 
  the 
  beets 
  and 
  from 
  them 
  had 
  in- 
  

   vaded 
  the 
  cultivated 
  field. 
  It 
  is 
  very 
  probable 
  that 
  similar 
  conditions 
  

   led 
  to 
  the 
  attack 
  on 
  apple 
  seedlings 
  this 
  year. 
  It 
  was 
  found 
  compara- 
  

   tively 
  easy 
  to 
  control 
  both 
  species 
  by 
  spraying 
  the 
  infested 
  plants 
  with 
  

   paris 
  green. 
  The 
  liability 
  of 
  such 
  cultivated 
  crops 
  to 
  sudden 
  invasion 
  

   by 
  large 
  numbers 
  of 
  these 
  pests 
  emphasizes 
  the 
  necessity 
  of 
  constant 
  

   watchfulness 
  in 
  order 
  to 
  prevent 
  their 
  causing 
  much 
  injury. 
  

  

  Elm 
  leaf 
  beetle 
  (Galerucella 
  luteola 
  Mull.). 
  This 
  insect 
  

   was 
  not 
  so 
  destructive 
  in 
  Albany 
  and 
  immediate 
  vicinity 
  as 
  in 
  preceding 
  

   years. 
  This 
  in 
  part, 
  at 
  least, 
  may 
  be 
  attributed 
  to 
  the 
  systematic 
  spraying 
  

   which 
  has 
  been 
  done 
  for 
  several 
  years 
  past 
  in 
  this 
  locality. 
  Albany 
  was 
  

   much 
  freer 
  from 
  evidences 
  of 
  beetle 
  injury 
  than 
  Troy, 
  and 
  the 
  elms 
  of 
  the 
  

   latter 
  place 
  were 
  in 
  a 
  considerably 
  better 
  condition 
  than 
  those 
  of 
  Water- 
  

   vliet. 
  A 
  factor 
  having 
  considerable 
  bearing 
  on 
  the 
  relative 
  injury 
  is 
  the 
  

   amount 
  of 
  spraying 
  done. 
  It 
  is 
  quite 
  significant 
  that 
  the 
  injury 
  should 
  be 
  

   the 
  least 
  where 
  it 
  is 
  the 
  rule 
  to 
  spray 
  systematically 
  all 
  the 
  trees 
  on 
  the 
  

   street, 
  and 
  greater 
  where 
  the 
  spraying 
  must 
  be 
  paid 
  for 
  by 
  the 
  private 
  in- 
  

   dividual 
  and 
  consequently 
  where 
  only 
  a 
  portion 
  of 
  the 
  trees 
  are 
  treated. 
  

   The 
  difierence 
  between 
  the 
  condition 
  of 
  the 
  elms 
  in 
  Troy 
  and 
  Watervliet 
  

   must 
  be 
  attributed 
  very 
  largely 
  to 
  the 
  relative 
  amount 
  of 
  spraying 
  done. 
  

   The 
  American 
  or 
  white 
  elm 
  predominates 
  in 
  the 
  latter 
  city 
  and 
  this 
  

   species 
  is 
  as 
  a 
  rule 
  eaten 
  by 
  the 
  beetle 
  only 
  when 
  the 
  more 
  attractive 
  

   European 
  elms 
  have 
  been 
  destroyed. 
  Therefore, 
  other 
  things 
  being 
  

   equal, 
  it 
  would 
  naturally 
  be 
  expected 
  that 
  Watervliet 
  would 
  be 
  relatively 
  

   free 
  from 
  the 
  pest, 
  and 
  the 
  reverse 
  of 
  this 
  can 
  hardly 
  be 
  considered 
  as 
  

   due 
  to 
  any 
  other 
  cause 
  than 
  the 
  lack 
  of 
  spraying. 
  

  

  This 
  pest 
  has 
  been 
  definitely 
  located 
  at 
  several 
  important 
  points 
  during 
  

   the 
  year. 
  It 
  was 
  found 
  to 
  have 
  been 
  present 
  in 
  considerable 
  numbers 
  at 
  

   Hoosick 
  Falls, 
  Rensselaer 
  co. 
  It 
  has 
  also 
  established 
  itself 
  pretty 
  gen- 
  

   erally 
  in 
  the 
  towns 
  of 
  Stillwater, 
  Schuylerville, 
  Salem 
  and 
  probably 
  at 
  

   Greenwich. 
  The 
  presence 
  of 
  the 
  insect 
  at 
  Salem 
  indicates 
  the 
  possibility 
  

   of 
  still 
  farther 
  progress 
  north, 
  but 
  there 
  are 
  good 
  reasons 
  for 
  thinking 
  that 
  

   the 
  insect 
  will 
  not 
  be 
  very 
  injurious, 
  excepting 
  possibly 
  in 
  an 
  unusual 
  

   season, 
  north 
  of 
  Mechanicsville. 
  The 
  occurrence 
  of 
  the 
  pest 
  at 
  Oswego, 
  

   Hastings 
  and 
  Rochester, 
  first 
  brought 
  to 
  my 
  notice 
  through 
  Dr 
  L. 
  O. 
  

   Howard, 
  is 
  a 
  much 
  more 
  serious 
  matter. 
  Prof. 
  C. 
  S. 
  Sheldon 
  states 
  that 
  

   he 
  has 
  examples 
  of 
  this 
  insect 
  taken 
  at 
  Oswego 
  in 
  1896, 
  and 
  Prof. 
  M. 
  H. 
  

  

  