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  Kranzling. 
  Acheta 
  inorio, 
  ein 
  Sisalschadling. 
  [Acheta 
  morio 
  as 
  a 
  

   Sisal 
  pest.] 
  — 
  Der 
  Pflanzer, 
  Dar-es-Salaam, 
  ix, 
  no. 
  11, 
  Nov. 
  1913, 
  

   pp. 
  568-570. 
  

  

  In 
  inspecting 
  a 
  new 
  Sisal 
  plantation 
  it 
  was 
  seen 
  that 
  a 
  number 
  of 
  

   healthy 
  one-year-old 
  plants 
  were 
  injured 
  in 
  a 
  peculiar 
  manner 
  not 
  

   previously 
  observed. 
  At 
  their 
  junction 
  with 
  the 
  stem 
  — 
  and 
  some- 
  

   times 
  on 
  their 
  spread 
  — 
  the 
  lowest 
  leaves 
  were 
  eaten 
  into 
  holes 
  about 
  

   as 
  large 
  as 
  the 
  thumb-nail. 
  Some 
  leaves 
  had 
  been 
  entirely 
  detached 
  

   while 
  others 
  hung 
  suspended 
  by 
  a 
  few 
  strips. 
  The 
  injury 
  was 
  done 
  by 
  

   night, 
  and 
  only 
  occurred 
  on 
  those 
  plants 
  growing 
  on 
  ground 
  with 
  a 
  

   cracked 
  and 
  broken 
  surface. 
  A 
  night-visit 
  to 
  the 
  fields 
  show^ed 
  the 
  

   pest 
  to 
  be 
  a 
  cricket, 
  Acheta 
  morio. 
  Only 
  young 
  specimens, 
  measuring 
  

   from 
  1 
  cm. 
  to 
  1*5 
  cm. 
  in 
  length, 
  were 
  noticed 
  at 
  work, 
  as 
  the 
  older 
  ones 
  

   escaped 
  on 
  the 
  least 
  alarm. 
  The 
  largest 
  caught 
  measured 
  about 
  3 
  cm. 
  

   Cotton, 
  which 
  was 
  planted 
  in 
  between 
  the 
  sisal, 
  had 
  not 
  been 
  touched. 
  

   This 
  is 
  only 
  the 
  second 
  insect 
  which 
  has 
  been 
  observed 
  to 
  attack 
  sisal. 
  

   The 
  author 
  remarks 
  that 
  this 
  occurrence 
  of 
  the 
  insect 
  was 
  quite 
  local 
  

   and 
  simply 
  due 
  to 
  the 
  favourable 
  conditions 
  provided 
  by 
  the 
  broken 
  

   soil. 
  In 
  case 
  the 
  pest 
  spreads 
  and 
  causes 
  further 
  damage 
  control 
  will 
  

   be 
  necessary, 
  but 
  it 
  should 
  be 
  neither 
  difficult 
  nor 
  costly. 
  

  

  BouviER 
  (E. 
  L.). 
  Coccinelles 
  centre 
  Cochenilles. 
  [Coccinelhds 
  to 
  

   combat 
  Coccids.] 
  — 
  Revue 
  Scientifique, 
  Paris, 
  29th 
  Nov. 
  1913, 
  

   pp. 
  673-677. 
  

  

  The 
  author 
  gives 
  in 
  outline 
  an 
  account 
  of 
  the 
  work 
  done 
  by 
  Riley 
  

   in 
  combating 
  the 
  Coccid, 
  Icerya 
  purchasi, 
  in 
  California 
  by 
  means 
  of 
  

   the 
  ladybird, 
  Novius 
  cardinalis, 
  and 
  of 
  the 
  more 
  recent 
  work 
  carried 
  

   out 
  on 
  the 
  same 
  lines 
  in 
  Italy 
  by 
  Silvestri 
  and 
  Berlese, 
  who 
  have 
  reared 
  

   parasites 
  of 
  the 
  Coccid, 
  Diasjns 
  pentagona. 
  Of 
  several 
  parasites 
  

   reared, 
  the 
  two 
  most 
  effective 
  seem 
  to 
  be 
  Prospaltella 
  berlesei, 
  bred 
  by 
  

   Berlese, 
  and 
  RJiizobius 
  lophantae, 
  reared 
  by 
  Silvestri. 
  The 
  two 
  

   entomologists 
  are 
  not 
  agreed 
  as 
  to 
  which 
  of 
  these 
  will 
  prove 
  of 
  most 
  

   use 
  in 
  combating 
  Diaspis. 
  Without 
  entering 
  into 
  the 
  discussion 
  of 
  

   this 
  question, 
  the 
  author 
  records 
  that 
  twigs 
  of 
  mulberry 
  infested 
  with 
  

   Diaspis, 
  which 
  was 
  itself 
  attacked 
  by 
  Prospaltella, 
  were 
  submitted 
  to 
  

   him, 
  and 
  that 
  he 
  found 
  the 
  degree 
  of 
  parasitism 
  to 
  be 
  very 
  high, 
  a 
  fact 
  

   which 
  speaks 
  in 
  favour 
  of 
  the 
  efficacy 
  of 
  Prospaltella. 
  In 
  Nice 
  and 
  

   eastward 
  to 
  Vintimiglia 
  mulberry 
  trees 
  are 
  attacked 
  by 
  Diaspis. 
  

   Artificial 
  methods 
  of 
  control 
  are 
  held 
  by 
  the 
  author 
  to 
  be 
  only 
  of 
  

   temporary 
  use, 
  and 
  he 
  thinks 
  that 
  to 
  keep 
  the 
  pest 
  really 
  under 
  control, 
  

   there 
  is 
  no 
  better 
  way 
  than 
  to 
  introduce 
  its 
  natural 
  enemies. 
  

  

  GuRNEY 
  (W. 
  B.). 
  Ironbark 
  Foliage 
  destroyed 
  by 
  Insects. 
  — 
  Agric. 
  

   Gaz. 
  N.S.W., 
  Sydney, 
  xxiv, 
  pt. 
  12, 
  Dec. 
  1913, 
  p 
  1076. 
  

  

  Ironbark 
  leaves 
  in 
  Stroud 
  w^ere 
  found 
  to 
  be 
  affected 
  by 
  " 
  Lerp 
  " 
  

   Insects 
  (Psyllidae), 
  which 
  attack 
  also 
  Eucalyptus 
  trees, 
  sucking 
  the 
  

   sap. 
  They 
  construct 
  shell-hke 
  coverings 
  called 
  " 
  Lerps," 
  under 
  which 
  

   they 
  grow 
  ; 
  after 
  several 
  moults 
  they 
  appear 
  as 
  minute 
  four- 
  winged 
  

   insects, 
  which 
  lay 
  their 
  eggs 
  on 
  the 
  leaves, 
  on 
  which 
  fresh 
  broods 
  soon 
  

   hatch. 
  When 
  plentiful 
  they 
  destroy 
  the 
  bulk 
  of 
  the 
  foliage, 
  but 
  

   usually 
  they 
  are 
  prevalent 
  in 
  numbers 
  which 
  only 
  cause 
  temporary 
  

   damage. 
  They 
  are 
  kept 
  in 
  check 
  by 
  their 
  natural 
  parasites, 
  minute 
  

   Chalcid 
  wasps. 
  

  

  