﻿522 
  

  

  According 
  to 
  Kiese, 
  of 
  Erfurt, 
  these 
  mites 
  can 
  breed 
  only 
  when 
  

   the 
  air 
  in 
  the 
  hot-beds 
  becomes 
  dry 
  and 
  their 
  development 
  is 
  assisted 
  

   when 
  the 
  earth 
  is 
  loose 
  and 
  dries 
  quickly. 
  Should 
  the 
  pest 
  appear, 
  

   the 
  plants 
  must 
  be 
  immediately 
  sprayed 
  with 
  tobacco-extract, 
  the 
  

   hot-beds 
  being 
  fumigated 
  with 
  sulphur 
  and 
  the 
  walls 
  and 
  frames 
  

   sprayed 
  with 
  tobacco 
  extract 
  and 
  limewashed. 
  

  

  Schumann, 
  of 
  Detmold, 
  recommends 
  powdering 
  the 
  leaves 
  with 
  

   tobacco 
  dust 
  or 
  spraying 
  with 
  soap 
  nicotin 
  emulsion, 
  or 
  with 
  soap 
  

   to 
  which 
  some 
  lysol 
  or 
  kerosene 
  is 
  added. 
  This 
  remedy 
  cannot 
  be 
  

   applied 
  in 
  the 
  case 
  of 
  plants 
  which 
  already 
  bear 
  blossoms 
  and 
  set 
  

   fruit, 
  as 
  the 
  emulsion 
  injures 
  them. 
  

  

  Sacharov 
  (N.). 
  HtKOTopbiXTj 
  MHceKTMCMflax-b 
  M 
  (|)yHrMCMAax-b, 
  

   ynOTpeOJIfleMblXl) 
  Seaij 
  MSeeCTM. 
  [On 
  some 
  insecticides 
  and 
  fungi- 
  

   cides 
  used 
  without 
  lime.] 
  — 
  «CaA'b, 
  Oropofllj 
  M 
  BaXMa.» 
  [Orchard, 
  

   Market-Garden 
  and 
  Bachza], 
  Astrachan, 
  no. 
  6, 
  June 
  1914, 
  

   pp. 
  378-381. 
  

  

  The 
  Astrachan 
  Station 
  has 
  experimented 
  on 
  some 
  insecticides 
  which 
  

   can 
  be 
  used 
  without 
  lime, 
  it 
  being 
  very 
  difficult 
  to 
  obtain 
  quick-Hme 
  

   of 
  good 
  quahty 
  in 
  the 
  government. 
  Good 
  results 
  were 
  obtained 
  with 
  

   *'lazurine" 
  against 
  vine-mildew. 
  During 
  the 
  year 
  comparative 
  experi- 
  

   ments 
  were 
  conducted 
  with 
  " 
  djipsin 
  " 
  and 
  " 
  uraniagrin," 
  the 
  first- 
  

   named 
  not 
  proving 
  effective, 
  while 
  uraniagrin 
  was 
  successful 
  against 
  

   the 
  larvae 
  oiApocheima 
  {Biston) 
  pomonaria, 
  Hb., 
  Euproctis 
  chrysorrhoea, 
  

   Clisiocampa 
  (Malacosoma) 
  neustria, 
  Hyponomeuta 
  malinellus, 
  and 
  a 
  

   Noctuid. 
  In 
  the 
  case 
  of 
  caterpillars 
  of 
  Apocheima 
  pomonaria, 
  Hb., 
  

   the 
  death 
  rate 
  from 
  Paris 
  green 
  was 
  80 
  per 
  cent., 
  from 
  uraniagrin 
  

   70 
  to 
  72 
  per 
  cent., 
  from 
  djipsin 
  nil 
  ; 
  in 
  another 
  experiment 
  the 
  death 
  

   rate 
  from 
  uraniagrin 
  was 
  75 
  per 
  cent., 
  from 
  djipsin 
  11 
  per 
  cent. 
  

   Uraniagrin 
  is 
  a 
  bright 
  green 
  powder, 
  very 
  thin, 
  easily 
  mixed 
  with 
  

   water, 
  does 
  not 
  settle 
  down 
  in 
  the 
  bottom 
  of 
  the 
  sprayer, 
  nor 
  burn 
  

   the 
  leaves, 
  and 
  requires 
  no 
  lime 
  ; 
  the 
  proportion 
  necessary 
  for 
  the 
  

   destruction 
  of 
  the 
  caterpillars 
  is 
  about 
  1 
  lb. 
  in 
  65 
  gallons 
  of 
  water. 
  

  

  Eopb6a 
  C"b 
  capaHHeM. 
  [The 
  campaign 
  against 
  locusts.] 
  — 
  «CaA'b, 
  

   OropOAli 
  M 
  5aX4a.» 
  [Orchard, 
  Market-Garden 
  and 
  Bachza'], 
  Astra- 
  

   chan, 
  no. 
  6, 
  June 
  1914, 
  p. 
  409. 
  

  

  The 
  hatching 
  of 
  locusts 
  in 
  1914 
  occurred 
  later 
  than 
  was 
  the 
  case 
  in 
  the 
  

   previous 
  year, 
  the 
  first 
  hatching 
  in 
  the 
  southern 
  parts 
  of 
  the 
  government 
  

   having 
  been 
  recorded 
  between 
  the 
  24th 
  and 
  26th 
  May. 
  The 
  total 
  

   area 
  attacked 
  is 
  smaller 
  than 
  last 
  year, 
  while 
  the 
  number 
  of 
  spots 
  

   infested 
  is 
  greater 
  and 
  they 
  are 
  more 
  widely 
  distributed 
  over 
  the 
  whole 
  

   delta 
  of 
  the 
  Volga. 
  The 
  campaign 
  was 
  started 
  immediately 
  after 
  

   hatching, 
  and 
  Paris 
  green 
  gave 
  excellent 
  results. 
  No 
  hatching 
  took 
  

   place 
  in 
  localities 
  where 
  in 
  the 
  previous 
  year 
  measures 
  were 
  taken 
  

   against 
  the 
  pest. 
  The 
  egg-clusters 
  in 
  the 
  southern 
  part 
  of 
  the 
  district 
  

   of 
  Zarev 
  along 
  the 
  " 
  limans 
  " 
  (a 
  name 
  given 
  in 
  S. 
  Russia 
  to 
  lagoons 
  

   formed 
  by 
  the 
  great 
  rivers) 
  have 
  perished, 
  and 
  no 
  hatching 
  has 
  been 
  

   yet 
  noticed 
  in 
  the 
  northern 
  part 
  of 
  this 
  district. 
  

  

  