﻿CONTENTS 
  

  

  Page. 
  

  

  Introduction 
  15 
  

  

  History 
  17 
  

  

  Origin 
  and 
  distribution 
  18 
  

  

  Food 
  plants 
  20 
  

  

  Occurrence 
  of 
  the 
  grape-berry 
  moth 
  in 
  destructive 
  numbers 
  21 
  

  

  Habits 
  of 
  the 
  adult 
  or 
  moth 
  22 
  

  

  Habits 
  and 
  character 
  of 
  injury 
  of 
  the 
  larva 
  23 
  

  

  Destructiveness 
  of 
  the 
  larva 
  26 
  

  

  Other 
  insects 
  whose 
  injury 
  to 
  grape 
  berries 
  resembles 
  that 
  caused 
  by 
  the 
  larva 
  

  

  of 
  the 
  grape-berry 
  moth 
  26 
  

  

  Description 
  28 
  

  

  The 
  egg 
  28 
  

  

  The 
  larva 
  28 
  

  

  The 
  pupa 
  29 
  

  

  The 
  adult 
  29 
  

  

  Seasonal 
  history 
  30 
  

  

  Life-history 
  studies 
  in 
  1909 
  30 
  

  

  Spring 
  brood 
  of 
  moths 
  30 
  

  

  Time 
  of 
  emergence 
  of 
  spring 
  brood 
  of 
  moths 
  30 
  

  

  Oviposition 
  of 
  spring-emerging 
  moths 
  in 
  confinement 
  31 
  

  

  Length 
  of 
  life 
  of 
  spring 
  brood 
  of 
  moths 
  32 
  

  

  First 
  generation 
  32 
  

  

  Incubation 
  period 
  of 
  first-brood 
  eggs 
  32 
  

  

  Length 
  of 
  feeding 
  period 
  of 
  first-brood 
  larvae 
  33 
  

  

  Length 
  of 
  pupal 
  stage 
  of 
  first-brood 
  pupae 
  ' 
  33 
  

  

  Time 
  of 
  emergence 
  of 
  first-brood 
  moths 
  34 
  

  

  Oviposition 
  of 
  first-brood 
  moths 
  35 
  

  

  Hibernation 
  of 
  first-brood 
  pupse 
  36 
  

  

  Length 
  of 
  life 
  cycle 
  of 
  first 
  generation 
  37 
  

  

  Second 
  generation 
  38 
  

  

  Incubation 
  period 
  of 
  second-brood 
  eggs 
  _ 
  _ 
  38 
  

  

  Length 
  of 
  feeding 
  period 
  of 
  second-brood 
  larvse 
  :38 
  

  

  Date 
  second-brood 
  larvae 
  leave 
  fruit 
  39 
  

  

  Miscellaneous 
  rearing 
  records 
  for 
  the 
  seasons 
  of 
  1907 
  and 
  1908 
  - 
  41 
  

  

  Summary 
  of 
  life-history 
  studies 
  of 
  the 
  grape-berry 
  moth 
  44 
  

  

  Parasitic 
  enemies 
  45 
  

  

  Degree 
  of 
  vineyard 
  infestation 
  in 
  Erie 
  County, 
  Pa 
  49 
  

  

  Remedial 
  measures 
  50 
  

  

  The 
  destruction 
  of 
  fallen 
  leaves 
  50 
  

  

  Plowing 
  in 
  late 
  fall 
  or 
  early 
  spring 
  j>I 
  

  

  Bagging 
  the 
  clusters 
  52 
  

  

  Hand 
  picking 
  infested 
  berries 
  52 
  

  

  Removal 
  of 
  ' 
  ' 
  trimmings 
  " 
  52 
  

  

  Experiments 
  with 
  poison 
  sprays 
  52 
  

  

  Vineyard 
  experiments 
  with 
  poison 
  sprays 
  in 
  1907 
  52 
  

  

  Vineyard 
  experiments 
  with 
  poison 
  sprays 
  in 
  1908 
  ._ 
  , 
  57 
  

  

  Vineyard 
  experiments 
  with 
  poison 
  sprays 
  in 
  1909 
  60 
  

  

  Recommendations 
  for 
  control 
  62 
  

  

  Conclusion 
  06 
  

  

  Bibliography 
  67 
  

  

  in 
  

  

  