﻿[.LUSTRATIONS 
  

  

  Page. 
  

   Plate 
  IV. 
  The 
  grape-berry 
  moth 
  (Polychrosis 
  vileana). 
  Figs. 
  1, 
  2. 
  — 
  Adult 
  or 
  

  

  moth. 
  Fig. 
  3. 
  — 
  Full-grown 
  larvae. 
  Fig. 
  4. 
  — 
  Pupae 
  1,6 
  

  

  V. 
  Injury 
  to 
  grapes 
  by 
  larvae 
  of 
  first 
  brood 
  of 
  the 
  grape-berry 
  moth. 
  

   Fig. 
  1. 
  — 
  Showing 
  destruction 
  of 
  portion 
  of 
  grape 
  cluster 
  as 
  a 
  result 
  

   of 
  boring 
  of 
  larva 
  into 
  stem. 
  Fig. 
  2. 
  —Showing 
  cracking 
  of 
  infested 
  

   berries 
  and 
  also 
  the 
  way 
  in 
  which 
  berries 
  first 
  attacked 
  are 
  secured 
  

   by 
  web 
  to 
  berries 
  which 
  are 
  attacked 
  later 
  in 
  the 
  development 
  of 
  

  

  the 
  larva 
  24' 
  

  

  VI. 
  Injury 
  to 
  grapes 
  by 
  larvae 
  of 
  second 
  brood 
  of 
  the 
  grape-berry 
  moth. 
  

   Fig. 
  1. 
  — 
  Showing 
  clusters 
  of 
  Concord 
  grapes 
  from 
  which 
  infested 
  

   berries 
  have 
  been 
  removed. 
  Fig. 
  2. 
  — 
  Injury 
  to 
  berries 
  by 
  larvae 
  

  

  just 
  previous 
  to 
  harvesting 
  of 
  fruit 
  24 
  

  

  VII. 
  Outdoor 
  rearing 
  shelter 
  and 
  cage 
  used 
  in 
  life-history 
  studies 
  at 
  

   North 
  East, 
  Pa. 
  Fig. 
  1. 
  — 
  Portion 
  of 
  outdoor 
  shelter 
  used 
  in 
  the 
  

   rearing 
  of 
  insects 
  during 
  1909. 
  Fig. 
  2. 
  — 
  Cage 
  built 
  over 
  grapevine 
  

   in 
  which 
  the 
  generations 
  of 
  the 
  grape-berry 
  moth 
  were 
  reared 
  dur- 
  

   ing 
  1909 
  32 
  

  

  VIII. 
  Spraying 
  against 
  the 
  grape-berry 
  moth. 
  Fig. 
  1. 
  — 
  Showing 
  size 
  of 
  

   grape 
  berries 
  at 
  second 
  spray 
  application 
  about 
  the 
  time 
  many 
  of 
  

   the 
  first-brood 
  eggs 
  of 
  the 
  grape-berry 
  moth 
  are 
  deposited 
  on 
  them. 
  

   Fig. 
  2. 
  — 
  Trailer 
  method 
  of 
  vineyard 
  spraying 
  in 
  order 
  to 
  apply 
  

   the 
  spray 
  to 
  the 
  underside 
  of 
  the 
  foliage 
  or 
  to 
  the 
  grape 
  clusters 
  

   where 
  the 
  foliage 
  is 
  dense 
  60 
  

  

  TEXT 
  FIGURES. 
  

  

  Fi<; 
  . 
  4. 
  Map 
  showing 
  distribution 
  of 
  the 
  grape-berry 
  moth 
  (Polychrosis 
  viteana) 
  . 
  20 
  

   f>. 
  Injury 
  to 
  grape 
  cluster 
  by 
  larva 
  of 
  grape-berry 
  moth 
  during 
  and 
  just 
  

  

  after 
  the 
  blooming 
  period 
  24 
  

  

  C. 
  Pupal 
  cases 
  made 
  on 
  grape 
  leaf 
  by 
  full-grown 
  larvae 
  of 
  the 
  first 
  brood 
  of 
  

  

  the 
  grape-berry 
  moth 
  24 
  

  

  . 
  7. 
  Cluster 
  of 
  Concord 
  grapes 
  on 
  which 
  many 
  second-brood 
  eggs 
  of 
  the 
  

  

  grape-berry 
  moth 
  are 
  present 
  25 
  

  

  8. 
  The 
  grape 
  curculio 
  (Craponius 
  inaeqwalis 
  : 
  Adult 
  larva, 
  pupa 
  20 
  

  

  !». 
  Work 
  of 
  the 
  grape 
  curculio 
  in 
  berry 
  of 
  grape 
  27 
  

  

  10. 
  Diagram 
  showing 
  lime 
  of 
  emergence 
  of 
  spring-brood 
  moths 
  of 
  the 
  grape- 
  

  

  berry 
  moth 
  in 
  1909 
  at 
  North 
  East, 
  Pa 
  30 
  

  

  11. 
  Diagram 
  showing 
  time 
  of 
  emergence 
  of 
  the 
  first-brood 
  moths 
  of 
  the 
  

  

  grape-berry 
  moth 
  in 
  L909 
  al 
  North 
  East, 
  Pa 
  35 
  

  

  L2. 
  Diagram 
  showing 
  time 
  of 
  Leaving 
  the 
  grape 
  berries 
  by 
  second 
  -brood 
  

   larva- 
  (.i* 
  the 
  grape-berry 
  moth, 
  from 
  fruit 
  collected 
  in 
  tin- 
  field, 
  

  

  North 
  East, 
  Pa., 
  L909 
  40 
  

  

  v 
  

  

  