﻿38 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  kill 
  the 
  grass 
  over 
  areas 
  half 
  an 
  acre 
  or 
  more 
  in 
  extent. 
  The 
  

   roots 
  were 
  almost 
  entirely 
  destroyed 
  and 
  in 
  many 
  fields 
  much 
  of 
  

   the 
  sod 
  was, 
  as 
  a 
  consequence, 
  torn 
  loose 
  where 
  a 
  horse 
  rake 
  was 
  

   used. 
  The 
  outbreak 
  was 
  taken 
  advantage 
  of 
  by 
  the 
  Entomol- 
  

   ogist 
  to 
  study 
  in 
  representative 
  spots, 
  the 
  work 
  of 
  the 
  grubs, 
  

   their 
  habits 
  and 
  natural 
  enemies, 
  with 
  special 
  reference 
  to 
  meth- 
  

   ods 
  of 
  control. 
  A 
  detailed 
  account 
  of 
  his 
  investigations 
  is 
  given 
  

   elsewhere. 
  

  

  The 
  Hessian 
  fly 
  caused 
  serious 
  losses 
  in 
  the 
  wheat-growing 
  sec- 
  

   tion 
  of 
  western 
  New 
  York, 
  destroying 
  entire 
  fields 
  and, 
  in 
  many 
  

   cases, 
  reducing 
  the 
  yield 
  by 
  50 
  per 
  cent. 
  An 
  investigation 
  of 
  the 
  

   injury 
  was 
  made 
  for 
  the 
  purpose 
  of 
  ascertaining 
  any 
  peculiarities 
  

   in 
  its 
  inception 
  and 
  determining 
  the 
  probabilities 
  of 
  serious 
  dam- 
  

   age 
  another 
  year. 
  A 
  number 
  of 
  parasites 
  were 
  reared 
  from 
  in- 
  

   fested 
  wheat 
  stems 
  collected 
  in 
  representative 
  areas. 
  An 
  ex- 
  

   tended 
  discussion 
  of 
  this 
  insect 
  is 
  -given 
  in 
  the 
  Entomologist's 
  

   report. 
  

  

  The 
  fall 
  army 
  worm, 
  another 
  grass 
  and 
  grain 
  pest, 
  was 
  exces- 
  

   sively 
  abundant 
  in 
  the 
  vicinity 
  of 
  New 
  York 
  City, 
  seriously 
  in- 
  

   juring 
  lawns, 
  destroying 
  millet 
  and 
  corn 
  and 
  feeding 
  upon 
  a 
  vari- 
  

   ety 
  of 
  grasses. 
  This 
  outbreak 
  was 
  also 
  investigated 
  and 
  a 
  de- 
  

   tailed 
  account 
  of 
  the 
  insect 
  has 
  been 
  prepared. 
  

  

  Shade 
  tree 
  pests. 
  The 
  widespread 
  and 
  severe 
  injuries 
  of 
  earlier 
  

   years 
  by" 
  the' 
  elm 
  leaf 
  beetle 
  in 
  the 
  Hudson 
  valley 
  in 
  partic- 
  

   ular, 
  amply 
  justified 
  extended 
  observations 
  the 
  past 
  season. 
  It 
  

   was 
  found 
  that 
  the 
  exceptional 
  damage 
  in 
  191 
  1 
  resulted 
  in 
  a 
  

   ■feeble 
  growth 
  and 
  weakened 
  trees 
  the 
  past 
  season. 
  The 
  early 
  

   portion 
  of 
  the 
  spring 
  was 
  unusually 
  cool 
  and 
  moist 
  and 
  largely, 
  

   as 
  a 
  result 
  of 
  these 
  conditions, 
  it 
  is 
  believed 
  that 
  injury 
  by 
  this 
  

   pest 
  was 
  not 
  so 
  severe 
  as 
  last 
  year. 
  There 
  was 
  a 
  marked 
  irreg- 
  

   ularity 
  in 
  the 
  work 
  of 
  the 
  beetle, 
  some 
  trees 
  in 
  a 
  locality 
  and 
  in 
  

   certain 
  cases 
  some 
  localities 
  being 
  almost 
  exempt 
  from 
  injury, 
  

   while 
  in 
  others 
  the 
  damage 
  was 
  relatively 
  severe. 
  A 
  portion 
  of 
  

   this 
  may 
  be 
  explained, 
  possibly 
  by 
  more 
  thorough 
  spraying. 
  Ex- 
  

   periments 
  were 
  conducted 
  with 
  sweetened 
  and 
  unmodified 
  ar- 
  

   senate 
  of 
  lead 
  for 
  the 
  purpose 
  of 
  ascertaining 
  if 
  any 
  material 
  

   advantage 
  was 
  to 
  be 
  gained 
  by 
  the 
  addition 
  of 
  a 
  cheap 
  sugar 
  or 
  

   molasses. 
  There 
  was 
  no 
  marked 
  difference 
  between 
  the 
  two 
  

   series 
  of 
  tests 
  and 
  the 
  earlier 
  work 
  with 
  poisons 
  was 
  confirmed 
  

   in 
  large 
  measure. 
  

  

  