﻿687 
  

  

  The 
  destruction 
  of 
  fungus 
  and 
  insect 
  pests 
  by 
  sulphur 
  fumes. 
  — 
  Rev. 
  

  

  Vitic, 
  Paris, 
  xlii, 
  no. 
  1076, 
  30th 
  July 
  1914, 
  p. 
  131. 
  

  

  In 
  a 
  report 
  of 
  the 
  proceedings 
  at 
  the 
  Congres 
  de 
  Viticulture 
  held 
  

   at 
  Lyons 
  in 
  1914, 
  M. 
  Bacon 
  is 
  stated 
  to 
  have 
  drawn 
  attention 
  to 
  

   some 
  successful 
  experiments 
  in 
  the 
  destruction 
  of 
  cryptogamic 
  diseases 
  

   and 
  insects. 
  Sublimated 
  sulphur 
  was 
  mixed 
  with 
  starch 
  paste 
  to 
  a 
  

   stiii 
  compound, 
  which 
  was 
  moulded 
  into 
  sticks. 
  These 
  were 
  dried, 
  

   dipped 
  in 
  nicotin 
  or 
  formol 
  and 
  broken 
  into 
  pieces. 
  About 
  6 
  to 
  8 
  lb. 
  

   were 
  distributed 
  in 
  the 
  vineyard 
  and 
  set 
  ahght 
  when 
  the 
  foliage 
  was 
  

   freshly 
  watered 
  or 
  still 
  wet 
  with 
  rain 
  or 
  dew. 
  In 
  calm 
  weather 
  the 
  

   fumes 
  cling 
  to 
  the 
  ground, 
  envelop 
  the 
  stocks 
  and 
  destroy 
  the 
  crypto- 
  

   gamic 
  parasites, 
  whilst 
  the 
  nicotin 
  and 
  formol 
  either 
  drive 
  away 
  or 
  

   kill 
  the 
  insects. 
  

  

  Zappelli 
  ( 
  — 
  ). 
  Un' 
  industria 
  nuova 
  gi^ 
  compromessa 
  ! 
  [A 
  new 
  

  

  industry 
  already 
  compromised.] 
  — 
  VAgricultura 
  Sabina, 
  Poggio 
  

   Mirteto, 
  xiii, 
  no. 
  7, 
  31st 
  July 
  1914, 
  p. 
  29. 
  

  

  The 
  production 
  of 
  clover 
  seed 
  has 
  had 
  to 
  be 
  abandoned 
  in 
  most 
  of 
  

   Central 
  Umbria 
  owing 
  to 
  injury 
  by 
  Apion 
  apricans. 
  This 
  industry 
  

   was 
  initiated 
  a 
  few 
  years 
  ago, 
  and 
  was 
  promising 
  well 
  until 
  this 
  weevil 
  

   made 
  its 
  appearance. 
  The 
  only 
  methods 
  of 
  dealing 
  with 
  it 
  involve 
  

   th.e 
  loss 
  of 
  the 
  seed 
  ; 
  either 
  the 
  clover 
  may 
  be 
  mown 
  and 
  used 
  as 
  

   fodder, 
  or 
  the 
  mown 
  clover 
  may 
  be 
  stacked 
  in 
  heaps, 
  in 
  which 
  the 
  heat 
  

   generated 
  will 
  kill 
  the 
  insects. 
  

  

  Grove 
  (A. 
  J.) 
  & 
  Ghosh 
  (C. 
  C). 
  The 
  life-history 
  of 
  Psylla 
  isitis, 
  

   Buckt. 
  (Psyllopa 
  punctipennis, 
  Crawford), 
  the 
  '* 
  Psylla 
  " 
  Disease 
  

   of 
  Indigo. 
  — 
  Mem. 
  Dept. 
  Agric. 
  in 
  India, 
  Calcutta, 
  Entom. 
  Ser., 
  

   iv, 
  no. 
  6, 
  July 
  1914, 
  pp. 
  329-357, 
  6 
  plates. 
  

  

  In 
  an 
  account 
  of 
  Psylla 
  isitis, 
  Buckt., 
  and 
  its 
  attacks 
  on 
  indigo 
  

   [see 
  this 
  Review, 
  Ser. 
  A, 
  i, 
  pp. 
  43-46], 
  it 
  is 
  stated 
  that 
  only 
  indigo- 
  

   yielding 
  plants 
  support 
  this 
  Psylla, 
  none 
  of 
  the 
  weeds 
  which 
  commonly 
  

   grow 
  in 
  indigo 
  fields 
  serving 
  as 
  food-plants. 
  Experiments 
  in 
  pots 
  

   showed 
  that 
  plants 
  well 
  manured 
  mth 
  superphosphate 
  and 
  oil 
  cake 
  

   were 
  as 
  readily 
  attacked 
  by 
  Psylla 
  as 
  untreated 
  ones. 
  The 
  infection 
  

   of 
  new 
  areas 
  is 
  generally 
  effected 
  by 
  flying 
  females, 
  which 
  may 
  be 
  

   assisted 
  by 
  the 
  wind. 
  Indigo 
  plants 
  covered 
  with 
  wire 
  gauze, 
  10-12 
  

   meshes 
  to 
  the 
  inch, 
  were 
  unattacked, 
  though 
  the 
  pest 
  was 
  in 
  great 
  

   numbers 
  5 
  yards 
  away. 
  When 
  indigo 
  was 
  sown 
  mth 
  covering 
  crops, 
  

   such 
  as 
  wheat, 
  linseed 
  and 
  mustard, 
  the 
  young 
  plants 
  were 
  un- 
  

   attacked, 
  though 
  neighbouring, 
  uncovered 
  indigo 
  was 
  badly 
  affected. 
  

   The 
  nymphs 
  seem 
  unable 
  to 
  spread 
  far, 
  as, 
  although 
  they 
  were 
  observed 
  

   to 
  travel 
  along 
  the 
  ground 
  5 
  or 
  6 
  feet 
  or 
  more, 
  they 
  died 
  within 
  a 
  day 
  

   if 
  they 
  failed 
  to 
  reach 
  proper 
  food- 
  plants. 
  The 
  heavy 
  dews 
  of 
  September 
  

   and 
  October 
  check 
  an 
  infestation 
  by 
  hindering 
  oviposition. 
  The 
  

   enemies 
  of 
  Psylla 
  include 
  : 
  Campylomma 
  livida, 
  Rent., 
  a 
  Capsid 
  bug, 
  

   which 
  is 
  enabled 
  by 
  means 
  of 
  its 
  rostrum 
  to 
  get 
  at 
  the 
  young 
  nymphs 
  

   in 
  hiding 
  which 
  are 
  secure 
  from 
  other 
  enemies, 
  and 
  a 
  black 
  spider, 
  

   which 
  mimics 
  Camponotus 
  compressus, 
  one 
  of 
  the 
  many 
  ants 
  always 
  

   accompanying 
  this 
  Psylla, 
  

  

  