﻿677 
  

  

  been 
  recorded 
  in 
  Canada 
  since 
  1906, 
  when 
  it 
  injured 
  cherries 
  at 
  Victoria, 
  

   B.C. 
  Aphis 
  (Siphocoryne) 
  avenae, 
  F., 
  the 
  European 
  grain 
  aphis, 
  

   occurs 
  commonly 
  on 
  the 
  apple, 
  often 
  in 
  association 
  with 
  A. 
  sorbi, 
  

   on 
  the 
  leaves 
  in 
  spring, 
  whence 
  it 
  migrates 
  to 
  grains 
  and 
  grasses 
  in 
  

   the 
  summer, 
  to 
  return 
  to 
  the 
  apple 
  in 
  autumn. 
  The 
  apple 
  aphis, 
  

   Aphis 
  pomi, 
  L., 
  the 
  cherry 
  aphis, 
  Myzus 
  cerasi, 
  L., 
  the 
  oyster-shell 
  

   scale, 
  Lepidosaphes 
  ulmi, 
  L., 
  and 
  the 
  red- 
  humped 
  apple-tree 
  caterpillar, 
  

   Schizura 
  concinna, 
  S. 
  & 
  A., 
  are 
  all 
  fairly 
  common, 
  as 
  well 
  as 
  the 
  cigar 
  

   case-bearer, 
  Coleophora 
  fletcherella, 
  Fern., 
  which 
  cannot, 
  however, 
  be 
  

   classed 
  as 
  an 
  important 
  orchard 
  insect. 
  The 
  first 
  larval 
  brood, 
  in 
  

   June, 
  of 
  the 
  pear- 
  slug, 
  Eriocampoides 
  limacina, 
  Retz., 
  may 
  cause 
  

   injury, 
  but 
  can 
  be 
  combated 
  with 
  arsenate 
  of 
  lead 
  or 
  pyrethrum 
  

   powder 
  ; 
  the 
  second 
  brood 
  of 
  larvae, 
  in 
  August, 
  can 
  almost 
  be 
  classed 
  

   as 
  advantageous, 
  for 
  the 
  defoliation 
  checks 
  the 
  growth 
  and 
  assists 
  

   the 
  tree 
  to 
  ripen 
  its 
  wood 
  for 
  the 
  winter. 
  The 
  economic 
  importance 
  

   of 
  Syneta 
  alhida, 
  Lee, 
  is 
  uncertain, 
  while 
  Magdalis 
  aenescens, 
  Lee, 
  

   the 
  bronze 
  apple-tree 
  weevil, 
  is 
  scarcely 
  of 
  economic 
  importance. 
  

   Other 
  pests 
  referred 
  to 
  in 
  this 
  report 
  are 
  the 
  pear-leaf 
  bhster-mite, 
  

   Eriophyes 
  pyri, 
  Pagnst., 
  the 
  apple 
  leaf-hopper, 
  Empoasca 
  inali, 
  Le 
  B., 
  

   the 
  strawberry-root 
  weevil, 
  Otiorrhyncus 
  ovatus, 
  the 
  black 
  vine-weevil, 
  

   0. 
  sulcatus, 
  Cercopidae, 
  the 
  currant-borer, 
  Aegeria 
  tipuliformis, 
  

   Clerck, 
  the 
  currant 
  fruit-fly, 
  Epochra 
  canadensis, 
  Loew, 
  the 
  potato 
  

   flea-beetle, 
  Epitrix 
  cucumeris, 
  Harris, 
  the 
  red 
  turnip-beetle, 
  Ento- 
  

   moscelis 
  adonidis, 
  F., 
  the 
  calDbage 
  maggot, 
  Chortophila 
  (Pegojnyia) 
  

   hrassicae, 
  Bouche, 
  the 
  imported 
  cabbage 
  worm, 
  Pieris 
  (Pontia) 
  rapae, 
  

   L., 
  the 
  cutworms, 
  Peridroma 
  saucia, 
  Hb., 
  and 
  Hadena 
  {Eupsepho- 
  

   pactes) 
  procincta, 
  Grt., 
  the 
  onion 
  maggot, 
  Hylemyia 
  antiqua 
  {Phorbia 
  

   cepetorum, 
  Meade), 
  the 
  chrysanthemum 
  leaf-miner, 
  Napomyza 
  {Phyto- 
  

   myza) 
  chrysanthemi, 
  Kowarz, 
  the 
  tarnished 
  plant-bug, 
  Lygiis 
  pratensis, 
  

   L., 
  the 
  bulb-mite, 
  Rhizoglyphus 
  hyacinthi, 
  Boisd., 
  the 
  narcissus-fly, 
  

   Merodon 
  eqiiestris, 
  F., 
  and 
  the 
  oblique-banded 
  leaf 
  -roller, 
  Cacoecia 
  

   (Archips) 
  rosaceana, 
  Harr. 
  A 
  table 
  summarising 
  the 
  essential 
  times 
  

   for 
  spray 
  application 
  to 
  apples 
  in 
  the 
  Lower 
  Fraser 
  Valley 
  is 
  also 
  

   given. 
  

  

  Engelhardt 
  (V. 
  M.). 
  HoBbifl 
  paSoTbi 
  no 
  rHMJibny. 
  [New 
  work 
  on 
  

  

  foul-brood.]— 
  «PycCKiM 
  FlHenOBOflHbm 
  JImCTOKTj.)) 
  [Russian 
  

   Beekeeping 
  Gazette,] 
  Moscow, 
  1914, 
  nos. 
  1-6, 
  January-June 
  1914, 
  

   pp. 
  12-16, 
  46-49, 
  84-86, 
  126-130, 
  162-165, 
  and 
  195-200, 
  

   6 
  figs. 
  

  

  This 
  is 
  part 
  of 
  a 
  paper 
  on 
  " 
  foul 
  brood," 
  read 
  at 
  the 
  seventh 
  All- 
  

   Russian 
  Conference 
  of 
  Beekeepers 
  at 
  Kiev, 
  deahng 
  with 
  the 
  patho- 
  

   logical 
  changes 
  provoked 
  by 
  the 
  disease 
  in 
  the 
  internal 
  organs 
  of 
  the 
  

   larvae 
  of 
  bees. 
  Investigations 
  were 
  conducted 
  only 
  on 
  diseased 
  larvae 
  

   which 
  were 
  still 
  ahve, 
  i.e. 
  showed 
  some 
  signs 
  of 
  movement 
  when 
  

   touched 
  by 
  a 
  needle 
  or 
  forceps. 
  This 
  method 
  enabled 
  the 
  changes 
  

   undergone 
  by 
  the 
  cell 
  elements 
  of 
  individual 
  organs 
  to 
  be 
  observed, 
  

   and 
  from 
  these 
  to 
  argue 
  the 
  state 
  of 
  the 
  organ 
  as 
  a 
  whole 
  and 
  that 
  of 
  

   the 
  general 
  condition 
  of 
  the 
  diseased 
  larvae. 
  Larvae 
  infected 
  with 
  

   Bacillus 
  alvei 
  were 
  chiefly 
  experimented 
  with, 
  although 
  occasionally 
  

  

  