﻿675 
  

  

  possible 
  that 
  one 
  of 
  these 
  is 
  responsible 
  for 
  the 
  twig-boring 
  habits 
  

   which 
  have 
  been 
  repeatedly 
  observed 
  in 
  British 
  Columbia, 
  but 
  not 
  

   elsewhere, 
  and 
  which 
  were 
  attributed 
  to 
  larvae 
  of 
  E. 
  ocellana. 
  The 
  

   larvae 
  of 
  Orgyia 
  antiqua 
  were 
  unusually 
  numerous 
  in 
  orchards, 
  but 
  

   are 
  only 
  of 
  minor 
  importance 
  as 
  fruit 
  pests. 
  A 
  large 
  number 
  of 
  

   tent-caterpillars, 
  Malacosoma 
  spp., 
  which 
  appeared 
  in 
  the 
  spring, 
  were 
  

   practically 
  exterminated 
  before 
  reaching 
  maturity 
  by 
  their 
  parasites 
  

   and 
  by 
  a 
  bacterial 
  disease. 
  One 
  outbreak 
  of 
  Cydia 
  pomo7iella 
  occurred, 
  

   though 
  not 
  in 
  the 
  same 
  orchards 
  as 
  the 
  previous 
  year, 
  but 
  the 
  lesser 
  

   apple-worm, 
  Enarmonia 
  prunivora, 
  was 
  unusually 
  abundant, 
  and 
  

   seems 
  to 
  be 
  increasing. 
  Examination 
  of 
  attacked 
  apples 
  proved 
  that 
  

   about 
  60 
  per 
  cent, 
  had 
  been 
  entered 
  from 
  the 
  side, 
  the 
  larvae 
  in 
  most 
  

   cases 
  being 
  visible 
  in 
  shallow 
  borings 
  just 
  beneath 
  the 
  skin. 
  The 
  fall 
  

   web-worm, 
  Hyphantria 
  cimea, 
  was 
  very 
  common 
  on 
  apple 
  and 
  wild 
  

   cherry 
  trees, 
  while 
  the 
  red-humped 
  apple-tree 
  caterpillar, 
  Schizura 
  

   (Oedemasia) 
  concinna, 
  did 
  considerable 
  damage 
  to 
  apple-tree 
  foliage. 
  

   Datana 
  ministra, 
  the 
  yellow-necked 
  apple-tree 
  caterpillar, 
  was 
  respon- 
  

   sible 
  for 
  the 
  almost 
  entire 
  defoliation 
  of 
  a 
  large 
  number 
  of 
  young 
  apple 
  

   trees, 
  and 
  the 
  imported 
  currant-borer, 
  Aegeria 
  tipuliformis, 
  did 
  notice- 
  

   able 
  damage 
  in 
  a 
  few 
  places. 
  Sanninoidea 
  exitiosa 
  is 
  a 
  serious 
  enemy 
  

   of 
  the 
  peach 
  in 
  southern 
  Okanagan 
  ; 
  elsewhere 
  in 
  the 
  North-west 
  

   S. 
  opalescens 
  is 
  the 
  common 
  form. 
  The 
  plum 
  and 
  apple 
  sphinx, 
  

   Hyloicus 
  {Sphinx) 
  drupiferarum, 
  will 
  often 
  strip 
  a 
  young 
  tree 
  of 
  all 
  

   its 
  leaves 
  in 
  a 
  very 
  short 
  time, 
  but 
  parasites 
  prevent 
  widespread 
  

   damage 
  by 
  this 
  pest. 
  A 
  cicada, 
  probably 
  Platypodia 
  putnami, 
  appeared 
  

   in 
  large 
  numbers 
  and 
  was 
  responsible 
  for 
  a 
  certain 
  amount 
  of 
  damage 
  

   to 
  apple 
  trees 
  by 
  ovipositing 
  in 
  the 
  twigs, 
  and 
  Cacoecia 
  {Archips) 
  

   cerasivorana, 
  the 
  cherry 
  tree 
  tortrix, 
  was 
  very 
  common 
  on 
  choke- 
  

   cherries, 
  but 
  also 
  was 
  found 
  occasionally 
  on 
  apple-tree 
  foliage. 
  The 
  

   fruit 
  tree 
  leaf-roller, 
  Cacoecia 
  {Archips) 
  argyrospila, 
  damaged 
  apple- 
  

   trees, 
  and 
  the 
  oyster-shell 
  scale, 
  Lepidosaphes 
  idmi, 
  caused 
  considerable 
  

   loss 
  in 
  old, 
  neglected 
  orchards. 
  Aspidiotus 
  ostreaeformis, 
  the 
  European 
  

   fruit 
  scale, 
  was 
  not 
  seriously 
  injurious. 
  The 
  egg-blisters 
  of 
  Empoasca 
  

   mail, 
  the 
  apple 
  leaf 
  -hopper, 
  were 
  abundant 
  in 
  the 
  spring, 
  most 
  commonly 
  

   in 
  one-year-old 
  wood, 
  rarely 
  in 
  older 
  wood, 
  one 
  or 
  two 
  eggs 
  being 
  found 
  

   in 
  each 
  blister. 
  Twenty 
  per 
  cent, 
  of 
  the 
  eggs 
  were 
  parasitised 
  by 
  a 
  

   small 
  Hymenopteron. 
  The 
  young 
  hoppers 
  began 
  to 
  emerge 
  on 
  9th 
  

   May; 
  two 
  distinct 
  broods 
  of 
  this 
  pest 
  occur 
  in 
  the 
  Okanagan. 
  Leaves 
  

   attacked 
  by 
  E. 
  mali 
  are 
  rarely 
  curled 
  as 
  described 
  elsewhere, 
  but 
  

   become 
  mottled 
  with 
  whitish 
  or 
  yellowish 
  spots, 
  the 
  fruit 
  being 
  marked 
  

   with 
  small, 
  white 
  circular 
  marks 
  about 
  J-inch 
  in 
  diameter. 
  The 
  

   tarnished 
  plant-bug, 
  Lygus 
  pratensis, 
  was 
  noted 
  attacking 
  a 
  wide 
  range 
  

   of 
  crops, 
  especially 
  nursery 
  stock. 
  Slight 
  loss 
  resulted 
  from 
  the 
  

   attacks 
  of 
  the 
  green 
  apple-aphis, 
  Aphis 
  pomi, 
  but 
  the 
  rosy 
  aphis, 
  

   A. 
  sorbi, 
  was 
  found 
  for 
  the 
  first 
  time 
  and 
  may 
  be 
  expected 
  to 
  cause 
  

   trouble 
  in 
  the 
  future. 
  The 
  woolly 
  apple-aphis, 
  Schizoneura 
  {Eriosoma) 
  

   lanigera 
  {americana 
  ?), 
  is 
  growing 
  in 
  importance 
  as 
  a 
  fruit 
  pest, 
  older 
  

   more 
  or 
  less 
  neglected 
  orchards 
  suffering 
  severely 
  ; 
  the 
  root 
  form 
  is 
  

   sometimes 
  found 
  in 
  the 
  Okanagan. 
  Elm 
  leaves 
  were 
  badly 
  attacked 
  

   by 
  the 
  elm-leaf 
  louse, 
  E. 
  americana, 
  and 
  the 
  currant 
  aphis, 
  Myzus 
  

   ribis, 
  was 
  very 
  common 
  on 
  currants, 
  as 
  was 
  Epochra 
  canadensis, 
  the 
  

   currant 
  fruit-fly. 
  The 
  black 
  cherry-aphis, 
  M. 
  cerasi, 
  the 
  most 
  impor- 
  

   tant 
  pest 
  of 
  the 
  cherry, 
  was 
  fairly 
  abundant, 
  and 
  a 
  common 
  insect 
  

   (098) 
  a2 
  

  

  4^ 
  

  

  C 
  

  

  V. 
  

  

  