﻿557 
  

  

  the 
  insects 
  off 
  the 
  vines 
  by 
  sluicing 
  with 
  cold 
  water, 
  following 
  this 
  

   up 
  by 
  dusting 
  with 
  hme. 
  The 
  insects 
  should 
  be 
  attracted 
  to 
  heaps 
  

   of 
  Diplotaxis 
  taken 
  from 
  neighbouring 
  vineyards. 
  Sulphuric 
  acid, 
  

   petroleum, 
  boihng 
  water, 
  etc., 
  may 
  then 
  be 
  poured 
  on 
  these 
  heaps. 
  

   The 
  insecticides 
  should 
  also 
  be 
  sprayed 
  on 
  the 
  soil 
  around 
  each 
  infested 
  

   plant, 
  as 
  Nysius 
  also 
  hides 
  under 
  clods. 
  

  

  Feytaud 
  (J.). 
  Instruction 
  pratique 
  pour 
  la 
  defense 
  contre 
  la 
  Cochylis 
  

   et 
  I'Eud^mis. 
  [Practical 
  instructions 
  for 
  the 
  control 
  of 
  Clysia 
  and 
  

   Polychrosis 
  .] 
  — 
  Bull. 
  Soc. 
  Etude 
  Vulg. 
  Zool. 
  Agric, 
  Bordeaux, 
  xiii, 
  

   no. 
  5, 
  May 
  1914, 
  pp. 
  69-74. 
  

  

  Spraying 
  may 
  be 
  carried 
  out 
  in 
  spring 
  against 
  the 
  first 
  generation, 
  

   or 
  in 
  summer 
  against 
  the 
  second. 
  Arsenicals 
  should 
  only 
  be 
  used 
  in 
  

   spring 
  [see 
  this 
  Review, 
  Ser. 
  A, 
  ii, 
  p. 
  552]. 
  Preventive 
  spraying, 
  

   appHed 
  during 
  a 
  certain 
  period, 
  is 
  the 
  most 
  efficacious. 
  This 
  time 
  

   extends 
  from 
  the 
  date 
  of 
  maximum 
  flight 
  to 
  that 
  on 
  which 
  the 
  cater- 
  

   pillars 
  begin 
  to 
  cover 
  the 
  flower 
  in 
  the 
  case 
  of 
  the 
  first 
  generation, 
  

   or 
  begin 
  to 
  penetrate 
  into 
  the 
  grapes 
  in 
  the 
  case 
  of 
  the 
  second. 
  The 
  

   date 
  of 
  maximum 
  flight 
  provides 
  a 
  sure 
  indicator 
  for 
  starting 
  preven- 
  

   tive 
  control, 
  though 
  in 
  spring 
  the 
  spraying 
  must 
  be 
  delayed 
  until 
  

   the 
  flowers 
  are 
  open. 
  A 
  sprayer 
  which 
  leaves 
  one 
  hand 
  free 
  to 
  push 
  

   aside 
  the 
  leaves 
  is 
  the 
  best. 
  As 
  a 
  preparation 
  for 
  summer 
  spraying 
  

   the 
  foUage 
  should 
  be 
  summarily 
  thinned 
  from 
  May 
  onwards. 
  This 
  

   thinning 
  will 
  not 
  only 
  reveal 
  the 
  grape-bunches 
  but 
  also 
  reduce 
  

   infestation. 
  In 
  spraying 
  against 
  the 
  vine 
  moth 
  special 
  care 
  must 
  be 
  

   taken 
  to 
  reach 
  the 
  flowers 
  or 
  the 
  grapes. 
  Bait- 
  traps 
  [see 
  this 
  Review, 
  

   Ser. 
  A, 
  ii, 
  p. 
  511] 
  are 
  very 
  useful 
  when 
  in 
  general 
  use. 
  They 
  are 
  

   actually 
  harmful 
  in 
  smaU 
  vineyards 
  surrounded 
  by 
  untreated 
  ones. 
  

   Shelter-traps, 
  consisting 
  of 
  a 
  rag 
  wrapped 
  round 
  the 
  vine 
  stock, 
  are 
  

   useful 
  auxiharies. 
  

  

  Sur 
  le 
  Blaniule 
  mouchet6. 
  [Blaniulus 
  guttulatus.] 
  — 
  Bull. 
  Soc. 
  Etude 
  

   Vulg. 
  Zool. 
  Agric., 
  Bordeaux, 
  xiii, 
  no. 
  5, 
  May 
  1914, 
  pp. 
  83-84. 
  

  

  Often 
  called 
  lule 
  des 
  /raises 
  (Strawberry 
  MilUpede) 
  because 
  of 
  its 
  

   preference 
  for 
  ripe 
  strawberries, 
  this 
  small 
  brown 
  Myriapod 
  also 
  

   attacks 
  potatoes, 
  rape, 
  turnips, 
  pumpkins, 
  cucumbers, 
  and 
  the 
  bulbs 
  

   of 
  onions, 
  garhc, 
  tulips 
  and 
  hyacinths, 
  as 
  well 
  as 
  fallen 
  fruit. 
  Where 
  

   germination 
  is 
  retarded 
  in 
  a 
  cold, 
  damp 
  spring, 
  seed, 
  especially 
  that 
  of 
  

   beetroot 
  and 
  wheat, 
  is 
  destroyed 
  by 
  it. 
  Shces 
  of 
  potato 
  or 
  of 
  fruit 
  

   make 
  good 
  traps. 
  The 
  soil 
  may 
  be 
  cleared 
  by 
  injecting 
  carbon 
  bisul- 
  

   phide 
  or 
  by 
  watering 
  with 
  potassium 
  sulphocarbonate. 
  Seed 
  may 
  be 
  

   protected 
  by 
  dipping 
  in 
  a 
  solution 
  of 
  phenic 
  acid 
  and 
  sulphate 
  of 
  

   magnesia, 
  and 
  very 
  early 
  sowing 
  is 
  best 
  avoided 
  in 
  order 
  to 
  obtain 
  

   rapid 
  germination. 
  

  

  The 
  Coconut 
  Beetle 
  in 
  British 
  E. 
  Africa. 
  — 
  Ann. 
  Rept. 
  Dept. 
  Agric, 
  Br. 
  

   E. 
  Africa, 
  for 
  1912-13, 
  London, 
  1914, 
  p. 
  17. 
  

  

  For 
  some 
  months 
  during 
  the 
  year, 
  Mr. 
  Dopwell, 
  Plant 
  Instructor, 
  

   has 
  been 
  on 
  itinerary 
  work 
  demonstrating 
  to 
  the 
  natives 
  the 
  destruc- 
  

   tion 
  caused 
  to 
  their 
  coconut 
  trees 
  by 
  the 
  Oryctes 
  beetle, 
  and 
  urging 
  

  

  