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  from 
  January 
  onward, 
  and 
  the 
  young 
  mites 
  appear 
  in 
  March. 
  Among 
  

   the 
  enemies 
  of 
  this 
  mite 
  are 
  Coccinelhd 
  larvae, 
  particularly 
  those 
  of 
  

   Coccinella 
  septempunctata, 
  the 
  hymenopterous 
  parasite 
  Tetrastichics 
  

   eriophyes, 
  and 
  the 
  fungus, 
  Botrytis 
  cinerea. 
  If 
  the 
  infestation 
  is 
  slight 
  

   the 
  buds 
  which 
  are 
  attacked 
  may 
  be 
  removed 
  and 
  burned 
  in 
  December 
  

   and 
  onwards 
  ; 
  if 
  the 
  infestation 
  is 
  great, 
  the 
  whole 
  bush 
  should 
  be 
  

   burned. 
  CoUinge 
  recommends 
  dusting 
  the 
  bushes 
  with 
  a 
  mixture 
  of 
  

   1 
  part 
  lime 
  and 
  three 
  parts 
  sulphur 
  ; 
  the 
  dusting 
  should 
  be 
  done 
  at 
  the 
  

   end 
  of 
  March 
  or 
  beginning 
  of 
  April 
  and 
  should 
  be 
  repeated 
  at 
  intervals. 
  

  

  TuRREL 
  (A.). 
  Les 
  Traitements 
  Arsenicaux 
  en 
  Agriculture. 
  [Arsenical 
  

   Treatment 
  in 
  Agriculture.] 
  — 
  Rev. 
  Vilic, 
  Paris, 
  xli, 
  no. 
  1051, 
  5th 
  

   Feb. 
  1914, 
  pp. 
  150-152. 
  

  

  The 
  author 
  disputes 
  the 
  idea 
  brought 
  forward 
  by 
  M. 
  Cazeneuve, 
  that 
  

   arsenical 
  treatments 
  are 
  of 
  little 
  value 
  in 
  agriculture. 
  On 
  inves- 
  

   tigating 
  cases 
  where 
  such 
  treatments 
  have 
  apparently 
  failed, 
  it 
  has 
  

   been 
  found 
  that 
  either 
  the 
  application 
  has 
  been 
  badly 
  made, 
  or 
  else 
  

   at 
  the 
  wrong 
  time. 
  Where 
  the 
  application 
  has 
  been 
  made 
  with 
  care, 
  

   the 
  results 
  have 
  been 
  quite 
  satisfactory. 
  The 
  author 
  has 
  treated 
  500 
  

   acres 
  of 
  vines 
  with 
  arsenates 
  with 
  complete 
  success. 
  The 
  loss 
  was 
  

   only 
  about 
  10 
  per 
  cent., 
  whilst 
  in 
  the 
  neighbouring 
  vineyards 
  66 
  per 
  

   cent, 
  of 
  the 
  harvest 
  was 
  lost. 
  This 
  has 
  been 
  his 
  experience 
  for 
  about 
  

   three 
  years. 
  In 
  Bouquignau 
  (Aude), 
  Clysia 
  ambiguella 
  destroyed 
  about 
  

   95 
  per 
  cent, 
  of 
  the 
  fruit 
  just 
  before 
  gathering, 
  but 
  the 
  following 
  year 
  

   by 
  use 
  of 
  arsenates, 
  the 
  author 
  was 
  able 
  to 
  save 
  it 
  completely. 
  Arsenical 
  

   treatments 
  prepared 
  and 
  applied 
  according 
  to 
  the 
  methods 
  recom- 
  

   mended 
  by 
  authorities, 
  are 
  of 
  the 
  greatest 
  value 
  to 
  agriculturists, 
  and 
  

   if 
  the 
  necessary 
  precautions 
  are 
  taken, 
  no 
  danger 
  is 
  involved 
  in 
  their 
  

   use. 
  

  

  Cephus 
  pygmaeus 
  attacking 
  Cereals 
  in 
  North 
  Africa. 
  — 
  Bull. 
  Soc. 
  Nat. 
  

   AccUmat., 
  Paris, 
  Ixi, 
  no. 
  4, 
  5th 
  Feb. 
  1914, 
  pp. 
  122-123. 
  

  

  M. 
  Riviere 
  complained 
  of 
  the 
  rapid 
  multiplication 
  of 
  a 
  sawfly, 
  Cephus 
  

   pygmaeus, 
  which 
  causes 
  great 
  damage 
  in 
  North 
  Africa. 
  The 
  female 
  

   pierces 
  the 
  stem 
  of 
  any 
  cereal 
  and 
  deposits 
  an 
  egg 
  in 
  the 
  hole. 
  This 
  

   process 
  is 
  repeated 
  fifteen 
  to 
  twenty 
  times. 
  The 
  larva 
  emerges 
  very 
  

   soon 
  and 
  rapidly 
  bores 
  its 
  way 
  into 
  the 
  middle 
  of 
  the 
  stem, 
  in 
  the 
  lower 
  

   part 
  of 
  which 
  it 
  winters 
  as 
  a 
  pupa. 
  After 
  the 
  crop 
  has 
  been 
  cut, 
  the 
  

   stubble 
  should 
  be 
  burnt, 
  thus 
  destroying 
  numerous 
  pupae. 
  The 
  

   question 
  whether 
  C. 
  pygmaeus 
  can 
  maintain 
  itself 
  on 
  wild 
  grasses 
  

   requires 
  investigation. 
  

  

  HuGOUNENQ 
  (L.). 
  La 
  bouillie 
  sulfo-calcique. 
  [Lime-sulphur 
  mixture.] 
  

   — 
  Progres 
  Agric. 
  et 
  Vitic, 
  Monipellier, 
  xxxi. 
  no. 
  6, 
  8th 
  Feb. 
  1914, 
  

   pp. 
  186-188. 
  

  

  The 
  author 
  points 
  out 
  the 
  difficulties 
  in 
  the 
  preparation 
  of 
  lime- 
  

   sulphur 
  for 
  a 
  good 
  spray 
  and 
  subscribes 
  to 
  a 
  suggestion 
  of 
  L. 
  Degrully, 
  

   that 
  a 
  simple 
  way 
  of 
  attaining 
  this 
  end 
  is 
  to 
  replace 
  the 
  lime-sulphur 
  

   by 
  the 
  alkaline 
  polysulphides 
  produced 
  commercially. 
  He 
  holds 
  that 
  

   where 
  lime-sulphur 
  is 
  efficacious 
  — 
  as 
  it 
  must 
  be 
  when 
  properly 
  pre- 
  

   pared 
  — 
  the 
  alkaline 
  polysulphides 
  will 
  be 
  no 
  less 
  so. 
  Like 
  the 
  lime- 
  

  

  