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  and 
  the 
  colonies 
  contained 
  winged 
  and 
  wingless 
  forms 
  and 
  were 
  found 
  

   on 
  the 
  lower 
  sides 
  of 
  leaves 
  in 
  company 
  with 
  A. 
  gossypii, 
  but 
  there 
  was 
  

   no 
  sign 
  that 
  they 
  were 
  injuring 
  the 
  plants. 
  

  

  Tetranychus 
  telarius, 
  L., 
  was 
  first 
  observed 
  by 
  the 
  author 
  on 
  cotton 
  

   -seedlings 
  on 
  the 
  25th 
  June, 
  near 
  Skobelev. 
  A 
  month 
  afterwards 
  the 
  

   presence 
  of 
  this 
  mite 
  w^as 
  more 
  noticeable 
  owing 
  to 
  the 
  appearance 
  of 
  

   purple-red 
  spots 
  on 
  the 
  leaves 
  of 
  the 
  cotton. 
  The 
  colonies 
  of 
  T. 
  

   elarius 
  usually 
  appear 
  on 
  the 
  lower 
  sides 
  of 
  the 
  leaves, 
  living 
  beneath 
  

   a 
  web. 
  The 
  purple 
  spots 
  produced 
  by 
  them 
  are 
  chiefly 
  peculiar 
  to 
  

   American 
  varieties 
  of 
  cotton, 
  e.g. 
  Gossypium 
  hirsutum, 
  while 
  the 
  local 
  

   5ort, 
  G. 
  herbatium, 
  does 
  not 
  exhibit 
  them 
  ; 
  this 
  is 
  explained 
  by 
  the 
  

   presence 
  of 
  a 
  red 
  juice 
  in 
  the 
  leaves 
  of 
  American 
  cotton, 
  the 
  Russian 
  

   cottons 
  having 
  a 
  practically 
  colourless 
  juice. 
  The 
  local 
  varieties 
  are 
  

   more 
  liable 
  to 
  the 
  attacks 
  of 
  this 
  pest, 
  loss 
  of 
  leaves 
  occurring 
  more 
  

   frequently 
  in 
  their 
  case. 
  Occasionally 
  there 
  is 
  an 
  extraordinary 
  

   growth 
  of 
  the 
  colonies 
  and 
  the 
  whole 
  plant 
  is 
  then 
  covered 
  with 
  the 
  

   web. 
  Amongst 
  the 
  enemies 
  of 
  T. 
  telarius 
  are 
  mentioned 
  : 
  — 
  Scolo- 
  

   ihrips 
  sexmaculatus, 
  Pergande, 
  larvae 
  of 
  Aphisoletes, 
  larvae, 
  nymphs 
  

   and 
  imagos 
  of 
  Thripleps 
  albidipennis, 
  Reut., 
  and 
  the 
  larv^ae 
  and 
  imago 
  

   of 
  Scymnus 
  punctillus, 
  Ws. 
  

  

  As 
  a 
  remedy, 
  the 
  author 
  has 
  tried 
  a 
  solution 
  of 
  wheat 
  paste 
  ; 
  1 
  lb. 
  of 
  

   wheat 
  flour 
  to 
  8 
  gallons 
  of 
  water, 
  the 
  flour 
  being 
  first 
  made 
  into 
  paste 
  

   in 
  the 
  usual 
  way. 
  He 
  described 
  his 
  experiments 
  with 
  this 
  remedy 
  

   and 
  with 
  flowers 
  of 
  sulphur, 
  and 
  it 
  appears 
  that 
  the 
  former 
  proved 
  

   much 
  more 
  effective 
  ; 
  it 
  is 
  cheaper, 
  3 
  gallons 
  costing 
  only 
  about 
  M., 
  

   and 
  kills 
  the 
  mites 
  in 
  a 
  very 
  short 
  time 
  (^ 
  to 
  2 
  hours), 
  by 
  smothering 
  

   them 
  ; 
  while 
  the 
  second 
  remedy 
  causes 
  death 
  only 
  after 
  a 
  few 
  days, 
  

   a 
  certain 
  percentage 
  of 
  the 
  mites 
  escaping. 
  

  

  Acridium 
  aegyptium, 
  L.. 
  were 
  discovered 
  at 
  the 
  end 
  of 
  June 
  in 
  the 
  

   larval 
  stage 
  on 
  cotton 
  leaves. 
  The 
  larvae, 
  as 
  well 
  as 
  the 
  nymphs, 
  

   feed 
  principally 
  on 
  cotton, 
  w^hile 
  the 
  imago 
  feeds 
  on 
  the 
  foliage 
  of 
  

   bushes 
  and 
  fruit 
  trees. 
  In 
  captivity 
  the 
  emergence 
  of 
  the 
  insects 
  

   began 
  on 
  the 
  7th 
  September, 
  indicating 
  that 
  A. 
  aegyptium 
  winters 
  in 
  

   Fergana 
  as 
  an 
  imago, 
  which 
  is 
  also 
  the 
  case 
  in 
  the 
  Crimea. 
  In 
  Andijan, 
  

   10 
  per 
  cent, 
  of 
  the 
  plants 
  were 
  sometimes 
  injured. 
  The 
  same 
  pests 
  

   were 
  also 
  noticed 
  in 
  Pachtalvkulsk 
  and 
  in 
  the 
  Starvation 
  Desert. 
  

  

  At 
  the 
  end 
  of 
  July, 
  injury 
  to 
  cotton 
  by 
  Pandemis 
  (Tortrix) 
  chon- 
  

   drillana, 
  Hs., 
  was 
  first 
  observed. 
  The 
  larva 
  draws 
  the 
  leaf 
  into 
  a 
  tube 
  

   and 
  skeletonises 
  it, 
  destroying 
  as 
  many 
  as 
  3 
  to 
  4 
  leaves 
  during 
  its 
  life 
  ; 
  

   it 
  also 
  attacks 
  the 
  buds. 
  P. 
  chondrillana 
  has 
  two 
  broods 
  during 
  the 
  

   summer. 
  

  

  In 
  July, 
  damage 
  to 
  the 
  leaves 
  of 
  cotton 
  hy 
  Acronycta 
  rumicis, 
  L. 
  var. 
  

   turonica, 
  Stand., 
  was 
  observed 
  in 
  Pachtalykulsk. 
  The 
  young 
  larvae 
  

   eat 
  away 
  the 
  parenchyma 
  of 
  the 
  leaves, 
  not 
  touching 
  the 
  epidermis 
  ; 
  

   later 
  on 
  they 
  gnaw 
  round 
  holes 
  through 
  the 
  leaves, 
  leaving 
  the 
  main 
  

   veins 
  untouched. 
  Such 
  injuries 
  were 
  mostly 
  observed 
  on 
  cotton 
  

   growing 
  near 
  plantations 
  of 
  poplars 
  or 
  willows. 
  Nearly 
  all 
  the 
  larvae 
  

   collected 
  were 
  infested 
  by 
  Anilasta 
  sp. 
  

  

  Adelphocoris 
  lineolatiis, 
  Goeze, 
  was 
  frequently 
  found 
  on 
  cotton 
  in 
  

   Andijan, 
  especially 
  where 
  the 
  plantations 
  of 
  cotton 
  joined 
  lucerne 
  

   fields. 
  This 
  pest 
  sucks 
  the 
  pedicles, 
  stalks 
  and 
  leaves 
  of 
  cotton, 
  

   causing 
  in 
  some 
  cases 
  the 
  falling 
  off 
  of 
  young 
  bolls 
  and 
  buds. 
  In 
  

   captivity 
  it 
  w^as 
  observed 
  to 
  oviposit 
  on 
  stalks 
  of 
  cotton. 
  Monostira 
  

  

  