﻿359 
  

  

  applied 
  at 
  the 
  strength 
  indicated 
  below 
  for 
  use 
  on 
  foliage. 
  In 
  the 
  

   latter 
  case 
  3 
  sprays 
  are 
  required 
  for 
  complete 
  control, 
  the 
  first 
  pre- 
  

   ferably 
  being 
  applied 
  immediately 
  after 
  the 
  young 
  begin 
  to 
  emerge 
  

   and 
  the 
  others 
  following 
  at 
  intervals 
  of 
  about 
  10 
  days, 
  or 
  whenever 
  

   additional 
  yoimg 
  appear. 
  For 
  the 
  ordinary 
  fohage-sprays 
  a 
  density 
  

   of 
  about 
  r008 
  (obtained 
  by 
  diluting 
  to 
  about 
  1 
  in 
  38 
  commercial, 
  

   or 
  1 
  in 
  30 
  home-made) 
  is 
  best 
  for 
  Hme-sulphur 
  on 
  apples 
  or 
  pears. 
  

   The 
  lead 
  arsenate 
  is 
  used 
  at 
  the 
  rate 
  of 
  2 
  lb. 
  of 
  the 
  paste, 
  or 
  1 
  lb. 
  of 
  

   the 
  powder, 
  to 
  50 
  gals, 
  of 
  diluted 
  spray 
  and 
  it 
  is 
  usually 
  added 
  to 
  the 
  

   Ume-sulphur 
  solution 
  and 
  applied 
  at 
  the 
  same 
  time. 
  The 
  experiments 
  

   made 
  seem 
  to 
  prove 
  that 
  when 
  combined 
  with 
  the 
  latter 
  solution 
  the 
  

   tri-plumbic 
  arsenate 
  is 
  the 
  safest. 
  With 
  the 
  combined 
  spray 
  just 
  

   described, 
  the 
  proper 
  times 
  of 
  apphcation 
  and 
  the 
  chief 
  enemies 
  

   controlled 
  by 
  them 
  are 
  as 
  follows. 
  (1) 
  Spray 
  when 
  the 
  blossoms 
  

   are 
  just 
  showing 
  pink, 
  or 
  slightly 
  before, 
  for 
  apple 
  or 
  pear 
  scab, 
  canker 
  

   worm 
  and 
  bud 
  moth 
  ; 
  this 
  being 
  specially 
  needed 
  where 
  scab 
  is 
  bad 
  

   or 
  the 
  weather 
  is 
  damp 
  and 
  cool 
  ; 
  also 
  very 
  essential, 
  with 
  the 
  addition 
  

   of 
  a 
  tobacco 
  extract 
  or 
  a 
  similar 
  spray 
  as 
  noted 
  below, 
  where 
  aphids 
  

   or 
  red 
  bugs 
  are 
  present. 
  (2) 
  The 
  second 
  spray 
  may 
  begin 
  when 
  the 
  

   petals 
  are 
  two-thirds 
  off, 
  and 
  it 
  should 
  be 
  completed 
  within 
  10 
  days 
  

   thereafter 
  ; 
  this 
  is 
  the 
  most 
  important 
  single 
  spray, 
  and 
  the 
  calyx 
  

   cups 
  should 
  be 
  filled 
  ; 
  for 
  the 
  codhng 
  moth, 
  scab, 
  curcuho, 
  and 
  later 
  

   species 
  of 
  red 
  bug 
  as 
  noted 
  below. 
  (3) 
  Third 
  spray, 
  about 
  2 
  weeks 
  

   after 
  No. 
  2, 
  for 
  codhng 
  moth, 
  curcuho, 
  sooty 
  blotch 
  fungus, 
  and 
  scab 
  ; 
  

   also 
  useful 
  against 
  the 
  apple 
  maggot, 
  when 
  present. 
  (4, 
  5 
  & 
  6) 
  In 
  

   orchards 
  subject 
  to 
  attack 
  by 
  bitter 
  rot 
  or 
  apple 
  blotch, 
  make 
  three 
  

   additional 
  sprays 
  — 
  preferably 
  with 
  Bordeaux 
  mixture 
  (3-3-50) 
  — 
  at 
  

   intervals 
  of 
  about 
  3 
  weeks, 
  beginning 
  8 
  or 
  9 
  weeks 
  after 
  the 
  fall 
  of 
  

   the 
  petals. 
  (7) 
  For 
  second 
  brood 
  of 
  codhng 
  moth, 
  late 
  scab 
  infections, 
  

   or 
  late 
  summer 
  caterpillars, 
  use 
  lime-sulphur 
  or 
  Bordeaux 
  and 
  lead 
  

   arsenate 
  as 
  above, 
  about 
  1st 
  August. 
  When 
  the 
  second 
  and 
  third 
  

   apphcations 
  have 
  been 
  thoroughly 
  made, 
  this 
  one 
  is 
  usually 
  unneces- 
  

   sary, 
  though 
  much 
  depends 
  on 
  the 
  locahty 
  and 
  season. 
  

  

  Feytaud 
  (J.) 
  & 
  Bos 
  (L.). 
  Observations 
  sur 
  I'emploi 
  des 
  pi6ges-app&ts 
  

   contre 
  Eud^mis. 
  [Notes 
  on 
  the 
  use 
  of 
  bait-traps 
  against 
  Poly- 
  

   chrosis 
  botrana.] 
  — 
  Bull. 
  Soc. 
  Etude 
  Vulg. 
  Zool. 
  Agric, 
  BordeauXy 
  

   xiii, 
  nos. 
  2 
  & 
  3, 
  Feb. 
  & 
  March 
  1914, 
  pp. 
  30-34 
  and 
  45-50, 
  4 
  figs. 
  

  

  Instead 
  of 
  expensive 
  glasses, 
  unglazed 
  flower 
  pots 
  were 
  used. 
  These 
  

   were 
  varnished 
  inside 
  to 
  make 
  them 
  waterproof, 
  had 
  a 
  capacity 
  of 
  

   about 
  13 
  oz., 
  and 
  were 
  filled 
  with 
  about 
  12 
  oz. 
  of 
  a 
  mixture 
  of 
  19 
  parts 
  

   of 
  10 
  per 
  cent, 
  solution 
  of 
  molasses 
  in 
  water 
  and 
  1 
  part 
  of 
  wine 
  lees. 
  

   These 
  were 
  inspected 
  every 
  4 
  days, 
  when 
  the 
  quantity 
  lost 
  by 
  evapora- 
  

   tion 
  was 
  replaced 
  and 
  the 
  moths 
  were 
  removed 
  and 
  killed. 
  A 
  boy 
  

   of 
  15 
  could 
  attend 
  to 
  5,600 
  traps. 
  About 
  60 
  to 
  120 
  pots 
  per 
  acre 
  

   appear 
  to 
  give 
  the 
  best 
  results 
  compatible 
  with 
  economy. 
  To 
  renew 
  

   the 
  liquid 
  automatically, 
  a 
  trial 
  was 
  made 
  with 
  pots 
  fitted 
  with 
  bottles 
  

   turned 
  upside 
  down 
  at 
  such 
  a 
  height 
  that 
  their 
  lips 
  were 
  about 
  1 
  inch 
  

   beneath 
  the 
  holes 
  serving 
  to 
  suspend 
  the 
  pot. 
  This 
  is 
  the 
  principle 
  

   adopted 
  in 
  drinking 
  troughs 
  for 
  birds. 
  Captures 
  were 
  more 
  numerous 
  

   with 
  this 
  type 
  of 
  trap 
  owing 
  to 
  the 
  rapid 
  fermentation 
  of 
  the 
  molasses 
  

   solution 
  within 
  the 
  bottle. 
  This 
  was 
  due 
  to 
  the 
  heat 
  of 
  the 
  sun, 
  and 
  

  

  