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  Ceylon 
  : 
  — 
  Tea, 
  coffee, 
  loquat, 
  cotton, 
  avocado 
  pear, 
  " 
  china 
  apple," 
  

   orange, 
  Grevillea, 
  teak, 
  Cassia 
  auriculata, 
  cinnamon 
  and 
  Erythroxylon. 
  

   In 
  India 
  it 
  is 
  recorded 
  from 
  tea, 
  coffee, 
  sandal 
  and 
  cotton. 
  Being 
  a 
  

   general 
  feeder 
  it 
  is 
  difficult 
  to 
  deal 
  with. 
  Affected 
  branches 
  should 
  

   be 
  cut 
  down 
  until 
  untunnelled 
  wood 
  is 
  reached 
  and 
  the 
  larva 
  or 
  pupa 
  

   in 
  the 
  tunnel 
  killed. 
  Sometimes, 
  as 
  when 
  the 
  tunnel 
  goes 
  below 
  the 
  

   ground 
  or 
  into 
  the 
  body 
  of 
  the 
  bush, 
  this 
  is 
  not 
  possible. 
  In 
  such 
  a 
  

   case 
  the 
  pruning 
  should 
  be 
  carried 
  as 
  low 
  down 
  as 
  possible, 
  and 
  the 
  

   tenant 
  of 
  the 
  gallery 
  killed 
  by 
  prodding 
  with 
  a 
  sharp 
  wire 
  or 
  by 
  putting 
  

   into 
  the 
  gallery 
  a 
  piece 
  of 
  cotton 
  wool 
  saturated 
  with 
  carbon 
  bisulphide 
  

   and 
  closing 
  the 
  hole 
  with 
  clay. 
  

  

  KuTHERFORD 
  (A.). 
  Mites. 
  — 
  Trop. 
  Agric, 
  Peradeniya, 
  xli, 
  no. 
  6, 
  Dec. 
  

   1913, 
  pp. 
  490-494. 
  

  

  Dry, 
  finely-divided 
  sulphur 
  has 
  been 
  regarded 
  as 
  a 
  specific 
  against 
  

   mites, 
  but 
  recent 
  work 
  in 
  the 
  United 
  States 
  shows 
  that 
  is 
  not 
  so 
  

   in 
  all 
  cases. 
  Dealing 
  with 
  the 
  red 
  spider 
  [Tetranychus 
  bimaculatus, 
  

   Harvey) 
  it 
  was 
  found 
  that 
  " 
  sulphur 
  is 
  effective 
  only 
  when 
  the 
  infested 
  

   surfaces 
  of 
  the 
  plant 
  are 
  exposed 
  to 
  direct 
  sunshine 
  at 
  some 
  time 
  

   during 
  the 
  day, 
  or 
  to 
  intense 
  reflected 
  heat." 
  In 
  Ceylon, 
  where 
  

   sulphur 
  gives 
  good 
  results, 
  one 
  or 
  other 
  of 
  these 
  conditions 
  is 
  usually 
  

   satisfied. 
  Dry 
  sulphur 
  should 
  be 
  applied 
  w^hen 
  the 
  leaves 
  are 
  wet 
  

   with 
  dew, 
  or, 
  failing 
  this, 
  they 
  should 
  receive 
  a 
  prehminary 
  spraying 
  

   with 
  water 
  ; 
  preferably 
  there 
  should 
  be 
  no 
  wind 
  at 
  the 
  time 
  of 
  appli- 
  

   cation. 
  In 
  Ceylon 
  the 
  cost 
  of 
  applying 
  sulphur 
  at 
  the 
  rate 
  of 
  10 
  lb. 
  

   per 
  acre, 
  preceded 
  by 
  a 
  spraying 
  with 
  water, 
  has 
  been 
  found 
  to 
  be 
  

   about 
  2s. 
  id. 
  per 
  acre. 
  Sulphur 
  is 
  now 
  applied 
  in 
  California 
  along 
  with 
  

   hydrated 
  lime 
  (which 
  may 
  be 
  prepared 
  by 
  adding 
  32 
  lb. 
  of 
  water 
  to 
  

   100 
  lb. 
  of 
  quicklime) 
  as 
  the 
  latter 
  causes 
  the 
  sulphur 
  to 
  adhere 
  to 
  the 
  

   leaves, 
  and 
  also 
  acts 
  as 
  a 
  carrier. 
  The 
  nozzle 
  should 
  throw 
  a 
  washing, 
  

   rather 
  than 
  a 
  misty, 
  spray. 
  The 
  pressure 
  must 
  not 
  be 
  less 
  than 
  120 
  lb. 
  

   and 
  angle-nozzles 
  or 
  bent 
  rods 
  are 
  necessary 
  in 
  the 
  case 
  of 
  mites 
  

   infesting 
  the 
  under 
  surfaces 
  of 
  leaves. 
  The 
  Yellow 
  Tea 
  Mite 
  (Tar- 
  

   sonemus 
  transhicens, 
  Green) 
  is 
  probably 
  the 
  most 
  common 
  and 
  most 
  

   injurious 
  of 
  the 
  mites 
  affecting 
  tea 
  in 
  Ceylon. 
  It 
  is 
  most 
  abundant 
  on 
  

   the 
  underside 
  of 
  the 
  leaves, 
  where 
  the 
  small 
  whitish 
  eggs 
  and 
  the 
  mites 
  

   can 
  be 
  seen 
  even 
  with 
  the 
  unaided 
  eye. 
  The 
  mite 
  occurs 
  chiefly 
  on 
  

   the 
  two 
  or 
  three 
  leaves 
  nearest 
  to 
  the 
  unopened 
  buds, 
  but 
  also 
  on 
  the 
  

   latter, 
  on 
  the 
  young 
  stem, 
  and, 
  sparingly, 
  on 
  leaves 
  below 
  the 
  two 
  or 
  

   three 
  that 
  are 
  most 
  heavily 
  infested. 
  Green 
  records 
  this 
  mite 
  as 
  badly 
  

   attacking 
  Cosmos 
  sulphurea, 
  a 
  composite, 
  and 
  the 
  author 
  has 
  seen 
  

   the 
  same, 
  or 
  a 
  very 
  closely 
  allied 
  mite, 
  in 
  injurious 
  numbers 
  on 
  leaves 
  

   and 
  young 
  stems 
  of 
  a 
  small 
  solanaceous 
  climber 
  {Solanum 
  venustum). 
  

   The 
  leaves 
  become 
  bronzed 
  and 
  withered 
  and 
  frequently 
  drop 
  off. 
  

   This 
  plant 
  was 
  exposed 
  to 
  the 
  full 
  rays 
  of 
  the 
  afternoon 
  sun. 
  

  

  Mites 
  of 
  this 
  group 
  are 
  usually 
  vegetable 
  feeders 
  and 
  many 
  are 
  of 
  

   great 
  economic 
  importance. 
  Tarsonemus 
  oryzae, 
  Targ.-Toz., 
  causes 
  

   a 
  disease 
  of 
  rice 
  known 
  as 
  " 
  bleaching 
  "in 
  Italy. 
  T. 
  spirifex, 
  March., 
  

   produces 
  distortion 
  in 
  the 
  panicle 
  of 
  oats 
  in 
  France 
  and 
  Germany. 
  

   T. 
  waitei, 
  Banks, 
  is 
  associated 
  with 
  a 
  peach-bud 
  disease 
  in 
  the 
  United 
  

   States. 
  T. 
  bancrofti, 
  Mich., 
  injures 
  sugar-cane 
  in 
  Barbados* 
  and 
  is 
  

  

  [*The 
  Barbados 
  form 
  has 
  been 
  described 
  as 
  a 
  distinct 
  species, 
  T. 
  spinipeSy 
  

   Hirst 
  [Bull. 
  Ent. 
  Bes. 
  iii, 
  1912, 
  p. 
  325).— 
  Ed.] 
  

  

  