﻿445 
  

  

  November), 
  the 
  Clysia 
  pupae 
  were 
  nearly 
  all 
  fully 
  formed 
  and 
  in 
  their 
  

   cocoons. 
  There 
  can, 
  therefore, 
  be 
  no 
  doubt 
  of 
  the 
  efficacy 
  of 
  the 
  

   process, 
  provided 
  that 
  care 
  be 
  taken 
  to 
  use 
  boiling 
  water 
  and 
  to 
  

   operate 
  in 
  dry 
  weather 
  immediately 
  after 
  the 
  grape 
  harvest, 
  so 
  as 
  to 
  

   find 
  some 
  Clysia 
  still 
  in 
  the 
  larval 
  stage. 
  The 
  best 
  method 
  is 
  to 
  pour 
  

   the 
  water 
  gently 
  on 
  the 
  branches 
  so 
  as 
  to 
  let 
  it 
  run 
  down 
  the 
  trunk, 
  

   care 
  being 
  taken 
  not 
  to 
  touch 
  the 
  sensitive 
  new 
  wood. 
  The 
  hot 
  water 
  

   treatment 
  is 
  specially 
  useful 
  against 
  Sparganoihis, 
  provided 
  the 
  stakes 
  

   are 
  also 
  treated 
  so 
  as 
  to 
  destroy 
  the 
  insects 
  sheltering 
  in 
  cracks. 
  Fumi- 
  

   gation 
  of 
  the 
  stocks, 
  enclosed 
  in 
  a 
  suitable 
  cover, 
  with 
  burning 
  sulphur 
  

   will 
  free 
  the 
  vine 
  from 
  Sjparganothis 
  in 
  10 
  to 
  12 
  minutes, 
  but 
  is 
  not 
  effica- 
  

   cious 
  against 
  either 
  Clysia 
  or 
  Polychrosis. 
  Whitewashing 
  \Aith 
  insecti- 
  

   cides 
  is 
  only 
  suitable 
  for 
  the 
  treatment 
  of 
  Coccids. 
  The 
  Hubbard-Riley 
  

   emulsion 
  is 
  made 
  up 
  of 
  1 
  lb. 
  hard 
  soap, 
  petroleum 
  17 
  J 
  pints, 
  boiling 
  

   water 
  8| 
  pints. 
  The 
  soap 
  is 
  first 
  dissolved 
  in 
  the 
  hot 
  water, 
  then 
  the 
  

   petroleum 
  is 
  added 
  and 
  the 
  mixture 
  is 
  stirred 
  for 
  5 
  or 
  10 
  minutes. 
  The 
  

   various 
  liquids 
  must 
  be 
  hot 
  and 
  the 
  water 
  soft 
  if 
  good 
  results 
  are 
  to 
  

   be 
  obtained. 
  This 
  solution 
  is 
  diluted 
  with 
  10 
  to 
  20 
  parts 
  water 
  for 
  

   use. 
  In 
  the 
  Gironde, 
  a 
  thick 
  milk 
  of 
  lime 
  (44 
  lb. 
  quickhme 
  in 
  24 
  gals, 
  

   water) 
  is 
  employed. 
  On 
  drying, 
  this 
  wash 
  encloses 
  the 
  scales, 
  fixes 
  

   them, 
  prevents 
  the 
  young 
  from 
  emerging 
  and 
  also 
  kills 
  them 
  by 
  

   dehydration. 
  To 
  destroy 
  moths 
  which 
  issue 
  from 
  caterpillars 
  brought 
  

   to 
  the 
  cellars, 
  the 
  cellar 
  should 
  be 
  kept 
  locked 
  from 
  the 
  beginning 
  of 
  

   April 
  and 
  light 
  only 
  allowed 
  to 
  enter 
  by 
  an 
  opening 
  the 
  size 
  of 
  a 
  window- 
  

   pane. 
  This 
  aperture 
  is 
  closed 
  by 
  a 
  transparent 
  sheet 
  of 
  paper 
  covered 
  

   with 
  a 
  sticky 
  substance 
  on 
  which 
  the 
  moths 
  are 
  caught 
  when 
  they 
  fly 
  

   towards 
  the 
  light. 
  The 
  author 
  in 
  conclusion 
  suggests 
  that 
  decortication 
  

   be 
  carried 
  out 
  in 
  the 
  first 
  year, 
  followed 
  by 
  shelter 
  traps 
  in 
  the 
  second, 
  

   third 
  and 
  fourth 
  years, 
  beginning 
  the 
  cycle 
  anew 
  in 
  the 
  fifth 
  year. 
  

   Concerted 
  action 
  of 
  all 
  growers 
  in 
  a 
  given 
  district 
  is 
  indispensable. 
  

   The 
  compensation 
  now 
  paid 
  to 
  individual 
  sufferers 
  should 
  be 
  abolished, 
  

   and 
  Agricultural 
  Defence 
  organisations 
  placed 
  under 
  the 
  Act 
  of 
  1888, 
  

   so 
  that 
  if 
  a 
  majority 
  be 
  in 
  favour 
  of 
  control, 
  the 
  few 
  dissentients 
  can 
  

   be 
  forced 
  to 
  practise 
  it. 
  The 
  money 
  now 
  given 
  in 
  compensation 
  would 
  

   be 
  better 
  applied 
  in 
  aid 
  of 
  such 
  organisations. 
  The 
  author 
  emphasises 
  

   the 
  necessity 
  of 
  operations 
  on 
  a 
  large 
  scale 
  if 
  winter 
  treatment 
  is 
  to 
  be 
  

   effective. 
  

  

  Harrer 
  ( 
  — 
  ). 
  Kultur 
  der 
  Kokospalme 
  in 
  Deutsehostafrika. 
  [Cultiva- 
  

   tion 
  of 
  the 
  Coconut 
  palm 
  in 
  German 
  East 
  Africa.] 
  — 
  Naturwiss. 
  

   Zeits. 
  Forst. 
  Landwirtscli., 
  Stuttgart, 
  xii, 
  no. 
  3, 
  March 
  1914, 
  

   pp. 
  128-132. 
  

  

  An 
  important 
  insect 
  enemy 
  of 
  coconut 
  palms 
  in 
  German 
  East 
  Africa 
  

   is 
  the 
  weevil, 
  Rhynchophorus 
  phoenicis, 
  which 
  bores 
  into 
  the 
  young 
  

   palm, 
  eating 
  the 
  leaves 
  while 
  they 
  are 
  still 
  folded 
  and 
  greatly 
  hindering 
  

   the 
  growth. 
  The 
  adults 
  are 
  gathered 
  by 
  hand 
  from 
  the 
  palms, 
  

   children 
  being 
  employed 
  for 
  the 
  purpose 
  and 
  receiving 
  about 
  lO^^. 
  for 
  

   every 
  100 
  weevils. 
  

  

  FoussAT 
  (J.). 
  Bouillies 
  anticryptogamiques 
  et 
  insecticides 
  employees 
  

   en 
  Viticulture. 
  [Spraying 
  liquids 
  for 
  cryptogamic 
  and 
  insect 
  pests 
  

   in 
  vine 
  cultivation,] 
  — 
  Btill. 
  Agric. 
  Alger., 
  Tun.,Maroc, 
  Algiers, 
  xx, 
  

   no. 
  6, 
  March 
  1914, 
  pp. 
  177-191. 
  

  

  The 
  two 
  most 
  serious 
  pests 
  of 
  vines 
  in 
  Algeria 
  are 
  mildew 
  and 
  

  

  