﻿293 
  

  

  Egg-laying 
  is 
  expected 
  to 
  commence 
  shortly 
  and 
  the 
  breeding-grounds 
  

   are 
  being 
  carefully 
  watched. 
  In 
  Negri 
  Sembilan 
  during 
  October 
  

   and 
  November, 
  the 
  swarms 
  were 
  very 
  numerous 
  and 
  individually 
  

   small. 
  The 
  periodicity 
  which 
  is 
  so 
  marked 
  a 
  feature 
  in 
  the 
  alternation 
  

   of 
  fliers 
  and 
  hoppers 
  in 
  Selangor 
  is 
  not 
  so 
  marked 
  in 
  Negri 
  Sembilan, 
  

   and 
  both 
  have 
  been 
  present 
  all 
  the 
  time. 
  The 
  area 
  of 
  distribution 
  here 
  

   is 
  very 
  wide, 
  and 
  help 
  has 
  been 
  given 
  in 
  the 
  work 
  by 
  assistants 
  from 
  

   Selangor. 
  Most 
  locusts 
  have 
  been 
  destroyed 
  by 
  the 
  sheeting 
  and 
  bag- 
  

   trap 
  method 
  [see 
  this 
  Review, 
  Ser. 
  A., 
  ii, 
  p. 
  110]. 
  For 
  the 
  locusts 
  in 
  

   paddy 
  small 
  quantities 
  of 
  crude 
  oil 
  or 
  kerosene 
  were 
  poured 
  on 
  the 
  

   water 
  in 
  the 
  flooded 
  sawahs 
  and 
  the 
  hoppers 
  shaken 
  off 
  the 
  paddy 
  into 
  

   the 
  oil 
  by 
  means 
  of 
  long 
  bamboos. 
  Many 
  swarms 
  were 
  wiped 
  out 
  by 
  

   this 
  method. 
  A 
  large 
  number 
  of 
  breeding-grounds 
  were 
  reported 
  

   from 
  Malay 
  kabuns 
  and 
  estates. 
  Wherever 
  it 
  is 
  possible 
  to 
  flood 
  a 
  

   breeding-ground, 
  this 
  is 
  the 
  most 
  effective 
  way 
  of 
  destroying 
  the 
  un- 
  

   hatched 
  locusts. 
  A 
  note 
  is 
  made 
  of 
  the 
  necessity 
  of 
  notifying 
  an 
  

   Inspecting 
  Ofi&cer 
  of 
  the 
  presence 
  of 
  locusts 
  on 
  any 
  land 
  as 
  stated 
  in 
  

   Section 
  13 
  of 
  " 
  The 
  Agricultural 
  Pests 
  Enactment, 
  1913." 
  Only 
  by 
  

   thorough 
  co-operation 
  of 
  all 
  the 
  planting 
  community 
  will 
  it 
  be 
  possible 
  

   to 
  make 
  a 
  success 
  of 
  the 
  present 
  locust 
  campaign. 
  Rewards 
  are 
  still 
  

   offered 
  for 
  reporting 
  breeding-grounds, 
  swarms 
  of 
  first 
  instar 
  hoppers 
  

   and 
  swarms 
  of 
  2nd 
  to 
  5th 
  instars. 
  The 
  report 
  closes 
  with 
  a 
  summary 
  

   of 
  the 
  locust 
  destruction 
  in 
  Negri 
  Sembilan 
  in 
  October 
  and 
  November, 
  

   the 
  totals 
  collected 
  being 
  respectively 
  293 
  and 
  1,836 
  kerosene 
  tins 
  full 
  

   of 
  these 
  insects. 
  

  

  £ 
  questo 
  il 
  momento 
  buono 
  per 
  combattere 
  il 
  pidocchio 
  lanigero 
  del 
  melo. 
  

  

  [This 
  is 
  the 
  proper 
  time 
  to 
  combat 
  the 
  woolly 
  apple 
  aphis.] 
  — 
  

   UUmhria 
  verde, 
  Sjpoleto, 
  iv, 
  no. 
  1, 
  Jan. 
  1914, 
  pp. 
  10-11. 
  

   For 
  winter 
  treatment, 
  a 
  solution 
  of 
  2 
  parts 
  by 
  weight 
  of 
  carbolised 
  

   tobacco 
  extract 
  and 
  a 
  like 
  quantity 
  of 
  carbonate 
  of 
  soda 
  in 
  100 
  parts 
  

   of 
  water, 
  or 
  1 
  part 
  of 
  soap 
  and 
  rather 
  less 
  than 
  1 
  part 
  by 
  weight 
  of 
  

   petroleum 
  in 
  100 
  parts 
  of 
  water 
  are 
  recommended. 
  The 
  waxy 
  covering 
  

   may 
  be 
  brushed 
  with 
  a 
  mixture 
  of 
  linseed 
  oil 
  7 
  parts, 
  white 
  lead 
  IJ 
  

   parts, 
  zinc 
  oxide 
  1 
  part, 
  all 
  by 
  weight, 
  which 
  is 
  boiled 
  for 
  10 
  minutes, 
  

   to 
  which 
  when 
  cold 
  is 
  added 
  1 
  part 
  of 
  turpentine. 
  A 
  newly 
  introduced 
  

   method 
  consists 
  of 
  burying 
  calcium 
  carbide, 
  in 
  pieces 
  the 
  size 
  of 
  a 
  

   walnut, 
  in 
  holes 
  made 
  round 
  the 
  tree. 
  If 
  the 
  soil 
  be 
  damp, 
  the 
  too 
  rapid 
  

   generation 
  of 
  gas 
  may 
  be 
  prevented 
  by 
  wrapping 
  the 
  carbide 
  in 
  paper. 
  

  

  Cerriana 
  (E. 
  F.). 
  Come 
  si 
  combatte 
  la 
  fillossera. 
  [How 
  Phylloxera 
  

   is 
  combated.] 
  — 
  Consigliere 
  delV 
  Agricoltore, 
  Turin, 
  ii, 
  no. 
  1, 
  15th 
  

   Jan. 
  1914, 
  pp. 
  20-21. 
  

   If 
  in 
  spite 
  of 
  every 
  care, 
  Phylloxera 
  has 
  gained 
  a 
  footing 
  in 
  the 
  vine- 
  

   yard, 
  bisulphide 
  of 
  carbon 
  may 
  be 
  used 
  against 
  it. 
  A 
  dose 
  of 
  10 
  oz. 
  

   per 
  square 
  yard 
  will 
  destroy, 
  not 
  only 
  the 
  pest, 
  but 
  also 
  the 
  vine, 
  whereas 
  

   one 
  of 
  f 
  to 
  1 
  oz. 
  will 
  destroy 
  all, 
  or 
  nearly 
  all, 
  the 
  pests 
  without 
  injuring 
  

   the 
  plant. 
  In 
  view 
  of 
  the 
  fact 
  that 
  success 
  is 
  not 
  quite 
  certain 
  and 
  that 
  

   costs 
  are 
  high, 
  this 
  method 
  is 
  most 
  suited 
  for 
  a 
  vineyard 
  where 
  only 
  a 
  

   few 
  plants 
  are 
  infested. 
  Flooding 
  gives 
  very 
  good 
  results, 
  but 
  is 
  not 
  

   applicable 
  in 
  the 
  majority 
  of 
  cases, 
  nor 
  is 
  planting 
  in 
  sand 
  satisfactory. 
  

   The 
  only 
  method 
  which 
  is 
  really 
  feasible 
  is 
  the 
  replanting 
  with 
  resistant 
  

   American 
  stocks. 
  

  

  