﻿112 
  

  

  suspended 
  from 
  iron 
  stakes 
  4 
  feet 
  G 
  inches 
  in 
  length, 
  furnished 
  with 
  a 
  

   hook 
  and 
  over 
  which 
  the 
  rope 
  is 
  hung. 
  The 
  sheeting 
  is 
  held 
  down 
  by 
  a 
  

   continuous 
  line 
  of 
  soil 
  heaped 
  on 
  its 
  free 
  edge. 
  

  

  A 
  quarter 
  of 
  a 
  mile 
  of 
  this 
  apparatus 
  can 
  be 
  placed 
  in 
  position 
  before 
  

   an 
  advancing 
  swarm 
  by 
  ten 
  proficient 
  coolies 
  in 
  half 
  an 
  hour. 
  More- 
  

   over, 
  it 
  is 
  easy 
  when 
  the 
  swarm 
  is 
  inside 
  the 
  enclosure 
  to 
  cut 
  off 
  their 
  

   retreat 
  by 
  closing 
  the 
  open 
  end 
  of 
  the 
  V 
  or 
  W. 
  It 
  has 
  been 
  found 
  that 
  

   when 
  a 
  large 
  swarm 
  of 
  hoppers 
  has 
  eaten 
  out 
  the 
  available 
  food 
  supply 
  

   behind 
  it 
  that 
  they 
  will 
  pour 
  into 
  trap 
  bags 
  for 
  eleven 
  hours 
  without 
  

   stopping, 
  necessitating 
  the 
  erection 
  of 
  further 
  traps, 
  or 
  changing 
  those 
  

   that 
  are 
  full, 
  and 
  this 
  with 
  practically 
  no 
  driving. 
  It 
  is 
  a 
  remarkable 
  

   sight 
  to 
  see 
  these 
  insects 
  hopping 
  towards 
  the 
  trap, 
  pouring 
  up 
  the 
  

   inclined 
  plane 
  and 
  dropping 
  into 
  the 
  trap 
  in 
  a 
  stream 
  that 
  is 
  almost 
  

   as 
  regular 
  as 
  a 
  stream 
  of 
  water, 
  killing 
  each 
  other 
  by 
  th.eir 
  weight 
  and 
  

   struggling 
  inside 
  the 
  trap. 
  Circhng 
  out 
  of 
  the 
  V 
  may 
  occur, 
  but 
  can 
  be 
  

   stopped 
  either 
  by 
  placmg 
  subsidiary 
  traps 
  on 
  the 
  arms 
  of 
  the 
  wings 
  

   and 
  facing 
  the 
  original 
  trap, 
  or, 
  which 
  is 
  easier, 
  by 
  modifications 
  in 
  the 
  

   erection 
  of 
  the 
  sheeting. 
  In 
  most 
  cases 
  it 
  is 
  desirable 
  to 
  drive 
  the 
  

   swarms 
  by 
  means 
  of 
  coolies 
  placed 
  behind 
  them. 
  In 
  one 
  instance, 
  

   near 
  Setapak 
  village, 
  with, 
  three 
  traps, 
  300 
  yards 
  of 
  sheeting 
  and 
  15 
  

   coolies, 
  about 
  two 
  million 
  insects, 
  a 
  portion 
  of 
  a 
  swarm, 
  were 
  destroyed 
  

   during 
  the 
  day. 
  Rewards 
  offered 
  to 
  natives 
  for 
  information 
  as 
  to 
  the 
  

   locality 
  of 
  breeding 
  grounds 
  or 
  hoppers 
  have 
  been 
  the 
  means 
  of 
  locating 
  

   hundreds 
  of 
  swarms. 
  

  

  Pratt 
  (H. 
  C). 
  The 
  Locust 
  Pest 
  in 
  Malaya; 
  a 
  Short 
  Survey 
  and 
  a 
  

   Brief 
  Description 
  of 
  its 
  Life-History. 
  — 
  Agric. 
  Bull 
  F.3I.S., 
  Kuala 
  

   Lumpur, 
  ii, 
  no. 
  4, 
  Nov. 
  1913, 
  pp. 
  76-80. 
  

  

  Before 
  organising 
  the 
  campaign 
  against 
  the 
  locust 
  pest 
  several 
  

   methods 
  of 
  control 
  were 
  tried, 
  and 
  the 
  most 
  successful 
  w^as 
  found 
  to 
  be 
  

   the 
  driving 
  and 
  trap 
  system. 
  No 
  reliable 
  information 
  as 
  to 
  the 
  origin 
  

   of 
  these 
  insects 
  is 
  available. 
  They 
  first 
  appeared 
  in 
  the 
  Malay 
  States 
  

   about 
  20 
  months 
  ago 
  in 
  the 
  neighbourhood 
  of 
  Port 
  Dickson, 
  and 
  since 
  

   then 
  have 
  spread, 
  mostly 
  in 
  a 
  northerly 
  direction, 
  over 
  100 
  miles 
  of 
  

   country. 
  The 
  life-history 
  of 
  the 
  locust 
  has 
  now 
  been 
  completely 
  

   worked 
  out, 
  and 
  the 
  details 
  are 
  given. 
  The 
  species 
  does 
  not 
  appear 
  to 
  

   have 
  been 
  identified. 
  

  

  South 
  (F. 
  W.). 
  Work 
  on 
  Locust 
  Destruction 
  in 
  September. 
  — 
  Agric. 
  

   Bull 
  F.M.S., 
  Kuala 
  Lumpur, 
  ii, 
  no. 
  4, 
  Nov. 
  1913, 
  pp. 
  85-88. 
  

  

  In 
  Selangor 
  there 
  were 
  three 
  main 
  centres 
  of 
  distribution 
  of 
  hopping 
  

   locusts, 
  the 
  district 
  of 
  Ulu 
  Selangor, 
  the 
  neighbourhood 
  of 
  Kuala 
  

   Lumpur 
  and 
  the 
  district 
  between 
  Kuala 
  Lumpur 
  and 
  Kajang. 
  In 
  each 
  

   district 
  was 
  a 
  Special 
  Assistant 
  who 
  employed 
  at 
  first 
  only 
  one 
  or 
  two 
  

   gangs, 
  though 
  these 
  were 
  increased 
  later 
  as 
  fresh 
  supplies 
  of 
  apparatus 
  

   were 
  obtained. 
  The 
  results 
  of 
  the 
  month's 
  work 
  w^ere 
  5,322 
  kerosene 
  

   tins 
  full 
  of 
  hoppers 
  in 
  all 
  stages, 
  representing 
  104 
  swarms. 
  In 
  addition, 
  

   2,083 
  kerosene 
  tins 
  of 
  hoppers 
  were 
  reported 
  to 
  have 
  been 
  captured 
  by 
  

   the 
  Malays 
  in 
  Kuala 
  Kubu 
  districts, 
  working 
  independently 
  with 
  their 
  

   own 
  apparatus, 
  copied 
  from 
  that 
  used 
  by 
  the 
  Department. 
  In 
  Negri 
  

   Sembilan, 
  at 
  the 
  end 
  of 
  the 
  month, 
  two 
  breeding 
  grounds 
  and 
  one 
  

  

  