﻿23 
  

  

  the 
  insects 
  ; 
  but 
  it 
  will 
  not 
  destroy 
  all 
  the 
  green 
  apple-aphis 
  eggs. 
  

   For 
  green 
  apple-aphis 
  1 
  part 
  lime-sulphur 
  concentrate 
  in 
  30 
  parts 
  

   water, 
  with 
  1 
  part 
  Black 
  Leaf 
  40 
  to 
  every 
  900 
  parts 
  solution, 
  should 
  

   be 
  applied 
  after 
  the 
  leaf-buds 
  have 
  just 
  opened, 
  and 
  will 
  effectually 
  

   kill 
  the 
  greater 
  part. 
  An 
  application 
  of 
  a 
  15 
  per 
  cent, 
  solution 
  of 
  

   kerosene 
  emulsion, 
  or 
  Black 
  Leaf 
  40, 
  1 
  part 
  to 
  900, 
  about 
  the 
  lOtli 
  to 
  

   ] 
  5th 
  of 
  September, 
  in 
  Vernon 
  District, 
  will 
  free 
  the 
  tree- 
  tops 
  of 
  woolly 
  

   apple-aphis 
  previous 
  to 
  the 
  appearance 
  of 
  the 
  winged 
  viviparous 
  

   females, 
  which 
  probably 
  migrate 
  to 
  other 
  host 
  plants, 
  beyond 
  control. 
  

   Furthermore, 
  the 
  author 
  recommends 
  ploughing 
  a 
  furrow^ 
  on 
  each 
  

   side 
  of 
  the 
  trees 
  in 
  the 
  spring 
  or 
  early 
  autumn. 
  A 
  man 
  follows 
  up, 
  

   and 
  with 
  a 
  large 
  digger 
  hoe, 
  or 
  shovel, 
  exposes 
  as 
  much 
  of 
  crown 
  and 
  

   roots 
  as 
  possible 
  within 
  a 
  4-foot 
  radius 
  of 
  the 
  tree 
  ; 
  then 
  sprays 
  thor- 
  

   oughly 
  with 
  kerosene 
  emulsion, 
  forcmg 
  the 
  spray 
  well 
  into 
  the 
  soil 
  

   about 
  the 
  crown 
  and 
  base 
  of 
  the 
  tree. 
  As 
  the 
  ploughing 
  is 
  necessary 
  

   every 
  other 
  year, 
  advantage 
  is 
  thus 
  taken 
  of 
  it 
  to 
  make 
  the 
  spraying 
  

   more 
  effective. 
  Again, 
  by 
  arranging 
  to 
  prune 
  the 
  trees 
  from 
  1 
  to 
  4 
  

   years 
  old 
  in 
  late 
  winter 
  or 
  early 
  spring, 
  the 
  shining 
  black 
  eggs 
  of 
  the 
  

   green 
  apple-aphis 
  are 
  then 
  easily 
  seen, 
  and 
  can 
  be 
  clipped 
  off 
  in 
  the 
  

   regular 
  pruning 
  operation. 
  By 
  pruning 
  in 
  late 
  winter 
  the 
  exposure 
  

   of 
  immature 
  wood 
  to 
  the 
  cold 
  winter 
  weather 
  is 
  also 
  avoided. 
  

  

  Lyne 
  (W. 
  H.). 
  Two 
  injurious 
  insects 
  of 
  economic 
  importance 
  

   attacking 
  peach, 
  apricot, 
  and 
  plum 
  trees. 
  — 
  Proc. 
  Entom. 
  Soc. 
  

   Br. 
  Columbia, 
  Victoria, 
  B.C., 
  no. 
  3, 
  N.S., 
  1913, 
  pp. 
  34-36. 
  

  

  The 
  method 
  of 
  control 
  adopted 
  for 
  the 
  peach 
  twig-borer 
  (Anarsia 
  

   lineatella) 
  consists 
  of 
  winter 
  spraying 
  with 
  lime-sulphur 
  1-10, 
  just 
  

   as 
  the 
  buds 
  are 
  opening, 
  and 
  arsenate 
  of 
  lead 
  3 
  lb. 
  to 
  50 
  galls, 
  of 
  water 
  

   when 
  the 
  new 
  growth 
  starts. 
  To 
  protect 
  the 
  fruit 
  from 
  the 
  second 
  

   brood 
  of 
  larvae, 
  use 
  the 
  arsenate 
  spray 
  just 
  about 
  the 
  time 
  the 
  moths 
  

   begin 
  to 
  fly 
  — 
  ^by 
  the 
  middle 
  of 
  July 
  in 
  British 
  Columbia. 
  In 
  dealing 
  

   with 
  the 
  peach 
  root-borer 
  [Sanninoidea 
  exitiosa, 
  opalescefis) 
  it 
  is 
  best 
  

   to 
  cut 
  the 
  larvae 
  out 
  about 
  the 
  end 
  of 
  June 
  before 
  they 
  pupate. 
  Be- 
  

   fore 
  replacing 
  the 
  earth 
  round 
  the 
  tree 
  the 
  following 
  w^ash 
  should 
  be 
  

   applied 
  : 
  — 
  ^1 
  part 
  lime-sulphur 
  to 
  6 
  parts 
  water, 
  with 
  enough 
  fresh- 
  

   slaked 
  lime 
  to 
  thicken 
  5 
  gallons 
  of 
  the 
  mixture 
  to 
  a 
  good 
  thick 
  paint 
  ; 
  

   into 
  this 
  stir 
  thoroughly 
  J 
  lb. 
  whale-oil 
  soap 
  and 
  J 
  pint 
  carbolic 
  acid 
  

   or 
  1 
  lb. 
  coal 
  tar. 
  When 
  the 
  paint 
  has 
  had 
  time 
  to 
  dry 
  on 
  the 
  trees, 
  

   replace 
  the 
  earth, 
  banking 
  up 
  4 
  or 
  5 
  inches. 
  This 
  wash 
  w^ill 
  also 
  pro- 
  

   tect 
  from 
  fungous 
  rot, 
  etc., 
  besides 
  making 
  it 
  very 
  difficult 
  for 
  the 
  

   young 
  larvae 
  to 
  penetrate. 
  To 
  save 
  cutting, 
  fumigation 
  of 
  the 
  roots 
  

   with 
  carbon 
  bisulphide 
  has 
  been 
  resorted 
  to, 
  but 
  is 
  not 
  popular, 
  as 
  

   there 
  is 
  danger 
  of 
  killing 
  the 
  tree. 
  The 
  peach 
  root-borer 
  is 
  a 
  most 
  

   injurious 
  pest, 
  on 
  account 
  of 
  its 
  deadly 
  work 
  being 
  done 
  unseen 
  in 
  the 
  

   most 
  vital 
  part. 
  Its 
  presence 
  is 
  often 
  not 
  suspected 
  until 
  the 
  tree 
  

   dies, 
  after 
  the 
  crown 
  of 
  the 
  roots 
  has 
  been 
  successfully 
  girdled. 
  

  

  MiDDLETON 
  (M. 
  S.). 
  Cutworms 
  and 
  their 
  control. 
  — 
  Proc. 
  Entom. 
  Soc. 
  

   Br. 
  Columbia, 
  Victoria, 
  B.C., 
  no. 
  3, 
  N.S., 
  1913, 
  pp. 
  36-37. 
  

  

  It 
  would 
  seem 
  that 
  epidemics 
  of 
  insect 
  pests 
  are 
  followed 
  by 
  periods 
  

   of 
  comparative 
  rest, 
  due 
  almost 
  wholly 
  to 
  parasitic 
  control. 
  The 
  

  

  