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  606 
  

  

  --^ 
  South 
  (F. 
  W.). 
  Summary 
  of 
  Locust 
  Work 
  March 
  12 
  to 
  April 
  30, 
  1914. 
  

   Selangor. 
  — 
  Agric. 
  Bull. 
  Fed. 
  Malay 
  Stales, 
  Kuala 
  Lumpur^ 
  ii, 
  

   no. 
  11, 
  June 
  1914, 
  pp. 
  294-297. 
  

  

  The 
  author 
  summarises 
  the 
  results 
  of 
  the 
  thorough 
  destructive 
  

   methods 
  which 
  were 
  employed 
  against 
  locusts 
  in 
  Selangor, 
  in 
  the 
  

   spring 
  of 
  1914. 
  In 
  one 
  day 
  868 
  kerosene 
  tins 
  full 
  of 
  hoppers 
  were 
  

   caught 
  in 
  the 
  Kajang 
  district 
  and 
  the 
  total 
  catch 
  from 
  Kajang, 
  Serdang 
  

   and 
  Singei 
  Besi 
  made 
  from 
  February 
  13th 
  to 
  March 
  31st 
  was 
  11,445 
  

   tins 
  full 
  [see 
  this 
  Review, 
  Ser. 
  A, 
  ii, 
  p. 
  479.] 
  The 
  flying 
  swarms 
  began 
  

   to 
  appear 
  early 
  in 
  April, 
  but 
  later 
  in 
  the 
  same 
  month 
  the 
  unexpected 
  

   appearance 
  of 
  mature 
  flying 
  swarms 
  and 
  hoppers 
  occurred, 
  which 
  

   the 
  author 
  beheves 
  must 
  have 
  been 
  connected 
  with 
  two 
  big 
  swarms 
  

   that 
  disappeared 
  in 
  the 
  jungle 
  the 
  previous 
  January. 
  In 
  the 
  Negri 
  

   Sembilan 
  State, 
  where 
  35 
  acres 
  of 
  hoppers 
  were 
  successfully 
  poisoned, 
  

   the 
  swarms 
  were 
  small, 
  but 
  numerous 
  and 
  often 
  scattered, 
  with 
  the 
  

   result 
  that 
  the 
  work 
  took 
  longer 
  than 
  in 
  Selangor. 
  It 
  has 
  been 
  found 
  

   that 
  a 
  large 
  swarm 
  can 
  be 
  dealt 
  with 
  almost 
  as 
  fast 
  as 
  a 
  small 
  one, 
  

   provided 
  the 
  ground 
  is 
  not 
  difficult. 
  The 
  method 
  of 
  spraying 
  poisons 
  

   on 
  the 
  grass 
  on 
  which 
  the 
  locusts 
  are 
  feeding 
  proved 
  very 
  successful 
  

   in 
  the 
  Seremban 
  district, 
  where 
  from 
  60-100 
  per 
  cent, 
  of 
  each 
  swarm 
  

   so 
  treated 
  was 
  destroyed. 
  The 
  author 
  beheves 
  this 
  to 
  be 
  the 
  quickest 
  

   and 
  most 
  successful 
  method 
  for 
  small 
  swarms 
  scattered 
  over 
  large 
  

   areas 
  of 
  lalang 
  land. 
  At 
  present 
  it 
  is 
  difficult 
  to 
  obtain 
  a 
  sufficient 
  

   supply 
  of 
  molasses 
  and 
  when 
  a 
  coarse 
  sugar 
  was 
  substituted 
  for 
  this 
  

   it 
  was 
  not 
  found 
  so 
  satisfactory. 
  

  

  Noel 
  (P.). 
  Les 
  ennemis 
  de 
  I'artichaut 
  (Cynara 
  scolymus). 
  [Artichoke 
  

   pests.] 
  — 
  Bull. 
  Trim. 
  Lab. 
  Entom. 
  Agric. 
  Seine 
  InfSr., 
  Rouen, 
  no. 
  2, 
  

   April-May-June 
  1914, 
  pp. 
  14-15. 
  

   The 
  chief 
  insect 
  pests 
  of 
  artichokes 
  in 
  Brittany 
  are 
  : 
  Cassida 
  viridis, 
  

  

  L., 
  Aphis 
  radicum, 
  G., 
  Aphis 
  papaveris, 
  F., 
  Pyrameis 
  cardui, 
  L., 
  

  

  and 
  Xanthoecia 
  {Gortyna) 
  flavago, 
  Schifi. 
  

  

  Desol 
  (P.). 
  Notes 
  biologiques 
  sur 
  la 
  larve 
  de 
  Tipula 
  oleracea 
  k 
  propos 
  

   de 
  ses 
  ravages 
  dans 
  les 
  pr6s 
  de 
  rAvesnois, 
  au 
  printemps 
  1914. 
  

   [Biological 
  notes 
  on 
  the 
  larva 
  of 
  Tipula 
  oleracea, 
  injuring 
  the 
  

   meadows 
  of 
  Avesnois 
  in 
  the 
  spring 
  of 
  1914.] 
  — 
  C.R. 
  Sac. 
  Biol., 
  

   Paris, 
  Ixxvii, 
  no. 
  21, 
  19th 
  June 
  1914, 
  pp. 
  126-127. 
  

  

  In 
  the 
  spring 
  of 
  1914, 
  circular 
  patches 
  of 
  from 
  15 
  to 
  60 
  feet 
  in 
  diameter, 
  

   or 
  the 
  entire 
  areas 
  of 
  meadows, 
  were 
  to 
  be 
  seen 
  covered 
  with 
  yellow 
  

   and 
  dead 
  grass, 
  the 
  roots 
  of 
  which 
  were 
  found 
  to 
  be 
  full 
  of 
  the 
  earth- 
  

   coloured 
  larvae 
  of 
  Tipula 
  oleracea. 
  Grasses 
  and 
  clovers 
  are 
  chiefly 
  

   attacked, 
  while 
  plants 
  with 
  thick 
  or 
  hard 
  roots 
  are 
  not 
  aflected. 
  Where 
  

   the 
  infested 
  zone 
  borders 
  on 
  a 
  furrow, 
  the 
  larvae 
  fall 
  into 
  it 
  during 
  the 
  

   night 
  and 
  being 
  incapable 
  of 
  cHmbing 
  out, 
  may 
  be 
  collected 
  in 
  large 
  

   numbers. 
  They 
  are 
  not 
  migratory 
  so 
  that 
  healthy 
  meadows 
  may 
  

   be 
  found 
  close 
  to 
  infested 
  ones. 
  Infestation 
  is 
  due 
  to 
  chance 
  circum- 
  

   stances 
  bringing 
  fertihsed 
  TipuHds 
  to 
  the 
  ground. 
  The 
  injury 
  begins 
  

   toward 
  the 
  end 
  of 
  winter, 
  and 
  the 
  spring 
  growth 
  Hmits 
  its 
  spread, 
  the 
  

  

  