﻿REPORT 
  OF 
  THE 
  STATE 
  ENTOMOLOGIST 
  I9OO 
  995 
  

  

  clusters 
  on 
  it, 
  but 
  this 
  was 
  evidently 
  in 
  excess 
  of 
  the 
  average. 
  At 
  

   Cooperstown, 
  Otsego 
  county, 
  300 
  egg 
  belts 
  were 
  taken 
  from 
  one 
  maple, 
  

   as 
  reported 
  in 
  the 
  Cotmtry 
  ge?itie7na?i. 
  At 
  Glen, 
  Montgomery 
  co., 
  and 
  

   Plattsburg, 
  CHnton 
  co., 
  these 
  eggs 
  have 
  been 
  reported 
  by 
  correspondents 
  

   as 
  occurring 
  in 
  large 
  numbers. 
  The 
  maple 
  and 
  appletrees 
  at 
  Oneonta, 
  

   Otsego 
  CO., 
  were 
  literally 
  loaded 
  with 
  egg 
  clusters, 
  as 
  stated 
  by 
  L. 
  I. 
  

   Holdredge. 
  It 
  certainly 
  looked 
  as 
  if 
  the 
  widespread 
  defoHations 
  

   of 
  the 
  previous 
  year 
  were 
  likely 
  to 
  be 
  repeated, 
  specially 
  as 
  similar 
  

   reports 
  were 
  received 
  from 
  many 
  others. 
  The 
  egg 
  belts 
  of 
  this 
  insect 
  

   are 
  very 
  resistant 
  to 
  insecticides. 
  Young 
  caterpillars 
  were 
  observed 
  to 
  

   hatch 
  from 
  a 
  cluster 
  on 
  a 
  twig 
  which 
  had 
  been 
  thoroughly 
  painted 
  with 
  

   crude 
  petroleum 
  the 
  preceding 
  Decem.ber. 
  The 
  eggs 
  remained 
  on 
  the 
  

   tree 
  over 
  winter. 
  Egg 
  clusters 
  dipped 
  in 
  crude 
  petroleum 
  Ap. 
  9 
  failed 
  

   to 
  produce 
  any 
  caterpillars, 
  but 
  such 
  radical 
  treatment 
  is 
  ordinarily 
  out 
  

   of 
  the 
  question. 
  

  

  There 
  was 
  a 
  period 
  01 
  unusually 
  cold 
  weather 
  in 
  early 
  May, 
  and 
  

   at 
  this 
  time 
  a 
  report 
  started 
  from 
  Midddletown, 
  Orange 
  co., 
  to 
  

   the 
  effect 
  that 
  the 
  young 
  forest 
  tent-caterpillars 
  were 
  killed 
  in 
  

   large 
  numbers 
  by 
  the 
  severe 
  weather. 
  This 
  was 
  a 
  matter 
  of 
  considerable 
  

   economic 
  importance; 
  and 
  therefore 
  the 
  voluntary 
  observers 
  were 
  re- 
  

   quested 
  to 
  make 
  a 
  special 
  report 
  on 
  the 
  effects 
  of 
  the 
  cold 
  on 
  the 
  young 
  

   forest 
  tent-caterpillars. 
  Reports 
  received 
  from 
  about 
  30 
  observers, 
  

   located 
  in 
  as 
  many 
  counties, 
  stated 
  that, 
  while 
  apparently 
  many 
  0/ 
  these 
  

   caterpillars 
  had 
  been 
  killed, 
  in 
  reality 
  they 
  were 
  in 
  a 
  dormant 
  condition, 
  

   and 
  that 
  during 
  the 
  warm 
  weather 
  following 
  they 
  appeared 
  in 
  numbers 
  

   and 
  fed 
  most 
  voraciously. 
  At 
  Delhi, 
  Delaware 
  co., 
  F. 
  M. 
  Simpson 
  found 
  

   considerable 
  numbers 
  dead 
  and 
  was 
  inclined 
  to 
  hold 
  the 
  weather 
  respon- 
  

   sible 
  for 
  the 
  mortality. 
  Many 
  dead 
  caterpillars 
  were 
  found 
  by 
  J. 
  M. 
  

   Dolph, 
  Port 
  Jervis, 
  Orange 
  co., 
  and 
  by 
  C. 
  E. 
  Childs, 
  Mayfield, 
  Fulton 
  

   CO. 
  A. 
  J. 
  Meiklejohn, 
  Plattsburg, 
  Clinton 
  co., 
  gave 
  a 
  detailed 
  account 
  

   of 
  stiffly 
  frozen 
  tent 
  caterpillars 
  reviving 
  after 
  being 
  brought 
  into 
  a 
  warm 
  

   room. 
  The 
  cold 
  weather 
  probably 
  killed 
  numbers 
  of 
  the 
  pests 
  in 
  some 
  

   sections, 
  but 
  in 
  Albany, 
  Chemung, 
  Greene, 
  Saratoga, 
  Seneca, 
  Wyoming 
  

   and 
  Yates 
  counties 
  their 
  prevalence 
  equaled 
  or 
  surpassed 
  that 
  of 
  the 
  

   previous 
  season. 
  A 
  remarkable 
  feature 
  about 
  the 
  outbreak, 
  specially 
  in 
  

   orchards, 
  was 
  the 
  apparent 
  absence 
  of 
  the 
  pests 
  till 
  late 
  in 
  the 
  season, 
  

   when 
  suddenly 
  they 
  were 
  observed 
  in 
  large 
  numbers 
  and 
  quickly 
  stripped 
  

   the 
  trees. 
  These 
  pests 
  were 
  not 
  seen 
  in 
  one 
  orchard 
  in 
  East 
  Greenbush 
  

   till 
  June 
  3, 
  and 
  by 
  the 
  6th 
  the 
  thrifty 
  young 
  trees 
  were 
  partly 
  stripped, 
  

   and 
  the 
  caterpillars 
  were 
  present 
  in 
  enormous 
  numbers, 
  fairly 
  covering 
  

  

  