﻿240 
  

  

  158 
  gals, 
  are 
  required 
  per 
  acre. 
  Spraying 
  must 
  always 
  be 
  effected 
  in 
  

   the 
  period 
  from 
  the 
  end 
  of 
  the 
  moth-flight 
  up 
  to 
  the 
  appearance 
  of 
  

   the 
  first 
  caterpillars. 
  High 
  pressure 
  sprayers 
  are 
  the 
  best, 
  and 
  every 
  

   grape 
  must 
  be 
  thoroughly 
  wetted. 
  A 
  single 
  application 
  of 
  this 
  insecti- 
  

   cide 
  costs 
  about 
  £5 
  15^. 
  per 
  acre. 
  The 
  makers 
  state 
  that 
  if 
  applied 
  

   in 
  the 
  same 
  manner 
  it 
  is 
  equally 
  effective 
  against 
  the 
  first 
  generation. 
  

   Apparatus 
  used 
  with 
  Golazin 
  must 
  be 
  thoroughly 
  cleansed 
  with 
  a 
  5 
  

   per 
  cent, 
  solution 
  of 
  ammonia 
  before 
  it 
  is 
  employed 
  with 
  copper- 
  

   sulphate. 
  Nicotin-soap 
  gave 
  very 
  fine 
  results. 
  The 
  spray 
  was 
  made 
  

   up 
  of 
  20 
  gals, 
  of 
  a 
  J 
  per 
  cent, 
  lime-copper-sulphate 
  solution, 
  4| 
  oz. 
  of 
  

   90 
  per 
  cent, 
  purified 
  nicotin 
  and 
  2 
  lb. 
  of 
  soft 
  soap. 
  The 
  soap 
  is 
  dis- 
  

   solved 
  in 
  a 
  known 
  quantity 
  of 
  boiling 
  water, 
  the 
  nicotin 
  is 
  slowly 
  and 
  

   •carefully 
  mixed 
  in 
  and 
  the 
  hme-copper-sulphate 
  solution 
  is 
  finally 
  

   added. 
  Before 
  this 
  latter 
  solution 
  is 
  added 
  its 
  strength 
  must 
  be 
  greater 
  

   than 
  J 
  per 
  cent., 
  as 
  the 
  amount 
  of 
  water 
  used 
  for 
  dissolving 
  the 
  soap 
  

   must 
  be 
  exactly 
  allowed 
  for. 
  Nicotin-soap 
  is 
  mainly 
  a 
  control 
  of 
  the 
  

   second 
  generation 
  and 
  must 
  be 
  apphed 
  immediately 
  the 
  moth-fiight 
  

   is 
  over 
  — 
  that 
  is, 
  from 
  the 
  25th 
  July 
  onwards. 
  Spraying 
  is 
  carried 
  

   out 
  as 
  with 
  Golazin. 
  On 
  an 
  average 
  123 
  gals, 
  are 
  required 
  per 
  acre, 
  and 
  

   one 
  man 
  with 
  two 
  boys 
  can 
  cover 
  that 
  area 
  in 
  three 
  days. 
  Under 
  

   local 
  conditions 
  the 
  total 
  expense 
  will 
  be 
  about 
  £3 
  4:S. 
  per 
  acre. 
  The 
  

   same 
  preparation, 
  omitting 
  the 
  copper-lime 
  mixture, 
  was 
  also 
  tried, 
  

   but 
  the 
  results 
  were 
  not 
  so 
  good. 
  The 
  treated 
  grapes 
  matured 
  in 
  a 
  

   healthy 
  condition, 
  but 
  took 
  from 
  two 
  to 
  three 
  weeks 
  longer 
  to 
  do 
  so 
  

   than 
  those 
  sprayed 
  with 
  Golazin. 
  In 
  making 
  up 
  the 
  insecticide 
  both 
  

   the 
  nicotin 
  and 
  the 
  soap 
  must 
  be 
  of 
  the 
  best 
  quahty. 
  Cottonseed- 
  

   oil 
  soap 
  is 
  the 
  best. 
  A 
  third 
  test 
  was 
  made 
  with 
  a 
  Hungarian 
  product 
  

   ■called 
  " 
  Kochillin 
  " 
  and 
  was 
  successful, 
  although 
  ripening 
  was 
  a 
  little 
  

   delayed. 
  Kochillin 
  is 
  apphed 
  immediately 
  after 
  the 
  vines 
  are 
  in 
  

   flower, 
  or 
  immediately 
  after 
  the 
  moth-flight 
  of 
  the 
  second 
  generation. 
  

   It 
  costs 
  2s. 
  a 
  lb. 
  and 
  is 
  used 
  as 
  a 
  2 
  per 
  cent, 
  solution. 
  

  

  Die 
  Bekampfung 
  des 
  Heu- 
  und 
  Sauerwurms 
  im 
  Rheingau 
  mit 
  einem 
  

   Schweizer 
  Insektizid. 
  [Combating 
  the 
  vine 
  moth 
  in 
  Eheingau 
  

   with 
  a 
  Swiss 
  insecticide.] 
  — 
  Neue 
  Zurcher 
  Zeitimg, 
  Zurich, 
  no. 
  341 
  

   Viertes 
  Morgenblatt, 
  9th 
  Dec. 
  1913. 
  

  

  The 
  grape 
  yield 
  of 
  1913 
  has 
  been 
  the 
  worst 
  on 
  record. 
  Some 
  

   growers, 
  however, 
  obtained 
  remarkable 
  results 
  in 
  combating 
  the 
  vine 
  

   moth, 
  which 
  had 
  generally 
  been 
  considered 
  as 
  beyond 
  control, 
  and 
  

   averaged 
  from 
  one-third 
  to 
  one-half 
  grape 
  yield. 
  The 
  trials 
  are 
  

   referred 
  to 
  above, 
  but 
  the 
  following 
  data 
  are 
  new 
  : 
  In 
  a 
  vineyard 
  of 
  

   about 
  875 
  square 
  yards 
  treated 
  with 
  " 
  Golazin 
  I'totsi 
  " 
  about 
  104 
  gal- 
  

   lons 
  of 
  unstrained 
  grape-must 
  were 
  obtained, 
  while 
  a 
  neighbouring 
  

   untreated 
  one 
  about 
  2,900 
  square 
  yards 
  only 
  produced 
  82 
  gallons. 
  In 
  

   the 
  former 
  case 
  treatment 
  resulted 
  in 
  a 
  full 
  harvest. 
  

  

  VuiLLET 
  (A.). 
  Stephanoderes 
  coffeae. 
  — 
  U 
  Agronomie 
  Coloniale, 
  Paris, 
  

   31st 
  Jan. 
  1914, 
  i, 
  no. 
  7, 
  pp. 
  19-21, 
  

  

  Last 
  September 
  the 
  Jardin 
  Colonial 
  received 
  from 
  the 
  Lieutenant- 
  

   Governor 
  of 
  the 
  Gaboon 
  a 
  consignment 
  of 
  Liberian 
  coffee 
  berries 
  attacked 
  

   by 
  a 
  Scolytid 
  beetle, 
  which 
  was 
  found 
  to 
  be 
  Stephanoderes 
  coffeae, 
  

   Hag. 
  The 
  female 
  deposits 
  an 
  egg 
  in 
  the 
  young 
  fruit 
  while 
  it 
  is 
  still 
  

  

  