﻿430 
  

  

  are 
  recommended. 
  Rolling 
  destroys 
  the 
  larvae, 
  and 
  must 
  be 
  done 
  

   when 
  they 
  are 
  on 
  the 
  ground 
  in 
  the 
  evening, 
  early 
  in 
  the 
  morning 
  

   or 
  on 
  dull 
  days. 
  In 
  marshy 
  places 
  very 
  heavy 
  rollers 
  must 
  be 
  used 
  ; 
  

   rolling 
  also 
  kills 
  the 
  pupae 
  and 
  the 
  flies 
  themselves 
  when 
  the 
  latter 
  

   rest 
  on 
  the 
  ground, 
  as 
  is 
  the 
  case 
  in 
  dull 
  weather. 
  The 
  larvae 
  may 
  

   be 
  collected 
  at 
  night 
  by 
  artificial 
  light 
  and 
  the 
  adults 
  can 
  be 
  caught 
  

   with 
  nets 
  or 
  light 
  traps. 
  Contact 
  and 
  stomach 
  poisons 
  are 
  on 
  the 
  

   whole 
  of 
  little 
  use, 
  though 
  good 
  results 
  are 
  said 
  to 
  have 
  been 
  obtained 
  

   by 
  applying 
  carbon 
  bisulphide 
  or 
  benzene 
  to 
  the 
  soil. 
  

  

  Urich 
  (F. 
  W.). 
  Froghoppers. 
  — 
  Jl. 
  Bd. 
  Agric. 
  Brit. 
  Guiana, 
  Georgetown, 
  

   vii, 
  no. 
  3, 
  Jan. 
  1914, 
  pp. 
  148-151. 
  

  

  After 
  referring 
  to 
  the 
  writings 
  of 
  Messrs. 
  Bodkin, 
  Quelch 
  and 
  Moore 
  

   regarding 
  the 
  conditions 
  in 
  Demerara, 
  the 
  author 
  says 
  that 
  only 
  three 
  

   species 
  of 
  froghoppers 
  are 
  common 
  in 
  the 
  cane-growing 
  districts, 
  

   viz. 
  : 
  — 
  The 
  black 
  froghopper, 
  Tomaspis 
  puhescens, 
  which 
  does 
  not 
  

   live 
  on 
  the 
  cane, 
  but 
  only 
  on 
  certain 
  grasses 
  ; 
  the 
  yellow-banded 
  

   froghopper, 
  Tomaspis 
  rubra, 
  which 
  does 
  not 
  attack 
  Gramineae 
  at 
  all, 
  

   but 
  lives 
  on 
  the 
  Christmas 
  bush 
  {Eupatorium 
  odoratum) 
  ; 
  and 
  the 
  

   yellow- 
  sided 
  froghopper, 
  Tomaspis 
  flavilatera. 
  The 
  last 
  species 
  is 
  

   found 
  on 
  sugar-cane, 
  but 
  never 
  in 
  sufficient 
  numbers 
  to 
  cause 
  damage. 
  

   It 
  should, 
  however, 
  be 
  watched 
  and 
  its 
  natural 
  enemies 
  encouraged 
  

   and 
  protected 
  as 
  much 
  as 
  possible. 
  

  

  Bernard 
  (Ch.) 
  & 
  Deuss 
  (J. 
  J. 
  B.). 
  Control 
  of 
  imported 
  Tea 
  seed. 
  — 
  

  

  Qtrly. 
  Jl. 
  Scient. 
  Dept. 
  Ind. 
  Tea 
  Assoc, 
  Calcutta, 
  iv. 
  pt. 
  1, 
  1914, 
  

  

  pp. 
  1-23. 
  [Received 
  13th 
  June 
  1914]. 
  

   In 
  the 
  course 
  of 
  a 
  paper 
  deahng 
  with 
  experimental 
  tests 
  on 
  the 
  

   quality 
  of 
  tea 
  seed 
  imported 
  into 
  Java, 
  the 
  authors 
  mention 
  that 
  

   the 
  bad 
  condition 
  of 
  seed 
  has 
  been 
  attributed 
  to 
  mildew 
  following 
  on 
  

   the 
  boring 
  of 
  the 
  hard 
  shell 
  by 
  Poecilocoris. 
  They 
  are, 
  however, 
  

   doubtful 
  whether 
  this 
  is 
  really 
  the 
  case, 
  as 
  mildew 
  occurs 
  indepen- 
  

   dently, 
  and 
  think 
  that 
  Poecilocoris 
  influences 
  the 
  quality 
  of 
  the 
  seed 
  

   chiefly 
  by 
  absorbing 
  the 
  sap 
  from 
  the 
  flowers 
  and 
  soft 
  immature 
  seeds. 
  

  

  Andrews 
  (E. 
  A.). 
  A 
  Note 
  on 
  the 
  relation 
  between 
  the 
  Tea 
  Mosquito 
  

  

  {Helopeltis 
  theivora) 
  and 
  the 
  Soil 
  — 
  Qtrly. 
  Jl. 
  Scient. 
  Dept. 
  Ind. 
  

   Tea 
  Assoc, 
  Calcutta, 
  iv. 
  pt. 
  1, 
  1914, 
  pp. 
  31-35. 
  [Received 
  13th 
  

   June 
  1914]. 
  

  

  The 
  author 
  points 
  out 
  that 
  though 
  Helopeltis 
  theivora 
  is 
  widely 
  

   distributed 
  throughout 
  the 
  tea 
  districts 
  of 
  north-east 
  India, 
  it 
  is 
  only 
  

   in 
  certain 
  places 
  that 
  it 
  does 
  considerable 
  damage. 
  A 
  short 
  account 
  

   is 
  here 
  given 
  of 
  results 
  obtained 
  during 
  recent 
  experiments 
  not 
  yet 
  con- 
  

   cluded. 
  The 
  distribution 
  of 
  mosquito 
  bhght 
  in 
  the 
  Duars 
  is 
  as 
  follows 
  : 
  

   It 
  is 
  worst 
  in 
  the 
  extreme 
  west 
  and 
  towards 
  the 
  east 
  in 
  those 
  gardens 
  

   furthest 
  from 
  the 
  hills. 
  This 
  is 
  the 
  area 
  covered 
  by 
  the 
  grey 
  sandy 
  loam 
  

   of 
  the 
  Duars, 
  the 
  remaining 
  area 
  being 
  almost 
  entirely 
  Red 
  Bank 
  ; 
  but 
  

   in 
  certain 
  Red 
  Bank 
  gardens 
  the 
  mosquito 
  is 
  numerous. 
  This 
  distribu- 
  

   tion 
  of 
  the 
  insect 
  may 
  be 
  due 
  to 
  the 
  Red 
  Bank 
  being 
  a 
  richer 
  soil 
  than 
  

   the 
  grey 
  sandy 
  loam, 
  and 
  the 
  tea 
  growing 
  on 
  it 
  less 
  liable 
  to 
  blight, 
  the 
  

   soil 
  having 
  deteriorated 
  in 
  those 
  Red 
  Bank 
  gardens 
  which 
  are 
  affected 
  ; 
  

   or 
  else 
  there 
  is 
  some 
  peculiarity 
  in 
  the 
  grey 
  loam 
  which 
  is 
  gradually 
  

  

  