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  THE 
  DISPERSION 
  OF 
  THE 
  GIPSY 
  MOTH. 
  

  

  carried 
  a 
  considerable 
  distance 
  by 
  the 
  wind. 
  The 
  infestation 
  men- 
  

   tioned 
  was 
  in 
  a 
  small 
  block 
  of 
  woodland, 
  mostly 
  deciduous 
  growth, 
  

   which 
  borders 
  Crystal 
  Lake, 
  and 
  is 
  west 
  of 
  Woodland 
  Avenue, 
  and 
  

   in 
  this 
  place 
  four 
  new 
  egg 
  clusters 
  were 
  found. 
  Another 
  'infestation 
  

   of 
  a 
  single 
  egg 
  cluster 
  was 
  on 
  a 
  maple 
  tree 
  500 
  feet 
  from 
  the 
  high- 
  

   way, 
  but 
  there 
  were 
  two 
  infested 
  orchards 
  within 
  1,000 
  feet, 
  and 
  it 
  

   is 
  probable 
  that 
  the 
  spread 
  came 
  from 
  these 
  orchards. 
  The 
  cater- 
  

   pillars 
  may 
  have 
  been 
  carried 
  by 
  the 
  wind 
  or 
  on 
  men 
  or 
  animals. 
  

   A 
  third 
  infestation 
  was 
  found 
  near 
  the 
  Winchendon 
  line, 
  but 
  egg 
  

   clusters 
  had 
  been 
  previously 
  discovered 
  on 
  several 
  old 
  apple 
  trees 
  in 
  

   a 
  pasture 
  near 
  the 
  woodland. 
  

  

  Any 
  of 
  these 
  colonies 
  may 
  have 
  been 
  brought 
  about 
  by 
  wind 
  

   spread, 
  but 
  the 
  evidence 
  is 
  not 
  strong. 
  The 
  unfavorable 
  character 
  

   of 
  the 
  trees 
  would 
  prevent, 
  to 
  a 
  large 
  degree, 
  the 
  establishment 
  of 
  

   the 
  insect 
  in 
  woodland 
  in 
  this 
  town. 
  

  

  RECORD 
  OF 
  SCOUTING 
  IN 
  GRAFTON, 
  MASS. 
  

  

  On 
  March 
  11, 
  1912 
  an 
  examination 
  of 
  Grafton, 
  Mass., 
  was 
  begun 
  

   by 
  scouts 
  working 
  under 
  the 
  direction 
  of 
  Mr. 
  H. 
  L. 
  Mclntyre. 
  All 
  

   the 
  territory 
  east 
  of 
  the 
  Grafton 
  & 
  Upton 
  Railway 
  was 
  examined, 
  

   and 
  a 
  part 
  of 
  the 
  woodland 
  near 
  Farnumsville 
  was 
  also 
  scouted. 
  The 
  

   town 
  is 
  generally 
  infested 
  with 
  the 
  gipsy 
  moth, 
  and 
  it 
  is 
  possible 
  to 
  

   find 
  egg 
  clusters 
  in 
  nearly 
  every 
  orchard. 
  The 
  area 
  examined 
  cov- 
  

   ered 
  about 
  5 
  square 
  miles 
  of 
  woodland. 
  No 
  orchards 
  or 
  estates 
  were 
  

   scouted. 
  The 
  different 
  kinds 
  of 
  trees 
  in 
  the 
  woodland 
  were 
  estimated 
  

   as 
  follows: 
  

  

  Per 
  cent. 
  Per 
  cent. 
  

  

  Conifers 
  G 
  Chestnut 
  18 
  

  

  Oak 
  21 
  Ash 
  1 
  

  

  Maple 
  23 
  Birch 
  and 
  beech 
  14 
  

  

  Elm 
  1 
  I 
  Miscellaneous 
  16 
  

  

  As 
  a 
  result 
  of 
  the 
  scouting 
  the 
  following 
  infestations 
  were 
  located 
  : 
  

   One 
  old 
  egg 
  cluster 
  on 
  a 
  birch 
  tree 
  in 
  woodland 
  near 
  North 
  

   Grafton, 
  two 
  colonies 
  on 
  the 
  land 
  of 
  the 
  State 
  insane 
  hospital, 
  one 
  of 
  

   18 
  egg 
  clusters 
  near 
  the 
  barns, 
  and 
  the 
  other 
  of 
  25 
  egg 
  clusters 
  on 
  a 
  

   large 
  oak 
  tree 
  on 
  the 
  edge 
  of 
  the 
  woodland 
  in 
  the 
  rear 
  of 
  one 
  of 
  

   the 
  buildings. 
  As 
  there 
  is 
  quite 
  a 
  general 
  infestation 
  of 
  the 
  fruit 
  

   trees 
  on 
  these 
  grounds 
  it 
  is 
  probable 
  that 
  these 
  colonies 
  were 
  es- 
  

   tablished 
  by 
  caterpillars 
  carried 
  on 
  men 
  or 
  farm 
  animals 
  to 
  the 
  

   places 
  where 
  the 
  egg 
  clusters 
  were 
  found. 
  An 
  infestation 
  of 
  two 
  

   clusters 
  was 
  located 
  near 
  the 
  Westboro 
  line 
  in 
  oak 
  growth. 
  Five 
  

   infestations 
  were 
  found 
  in 
  two 
  blocks 
  of 
  woodland 
  on 
  Esterbrook 
  

   Avenue. 
  In 
  one 
  block, 
  where 
  three 
  colonies 
  were 
  found, 
  four 
  egg 
  

   masses 
  were 
  discovered, 
  three 
  new 
  and 
  one 
  old, 
  while 
  in 
  the 
  other 
  

  

  