﻿208 
  

  

  would 
  prove 
  cflicient, 
  [See 
  this 
  Review, 
  Ser. 
  A, 
  ii, 
  p. 
  20.] 
  As 
  regards 
  

   fungus 
  diseases, 
  infectious 
  with 
  green 
  muscardine 
  have 
  so 
  far 
  not 
  been 
  

   successful. 
  A 
  description 
  of 
  the 
  species 
  is 
  given. 
  

  

  Chad 
  WICK 
  (C. 
  J.). 
  White 
  Ants 
  on 
  Coconuts. 
  — 
  Trop. 
  Agric, 
  Perade- 
  

   niya, 
  xlii, 
  no. 
  2, 
  Feb. 
  1914, 
  p, 
  96. 
  

  

  The 
  author 
  in 
  reply 
  to 
  Mr. 
  Krishnaswami 
  Row, 
  regarding 
  the 
  

   ravages 
  caused 
  by 
  white 
  ants 
  in 
  a 
  young 
  coconut 
  plantation, 
  suggests 
  

   the 
  use 
  of 
  a 
  mixture 
  of 
  1 
  lb. 
  crude 
  perchloride 
  of 
  mercury 
  and 
  10 
  gallons 
  

   of 
  water, 
  the 
  soil 
  surrounding 
  the 
  young 
  palms 
  to 
  be 
  saturated 
  with 
  

   this 
  solution. 
  This 
  works 
  satisfactorily 
  in 
  the 
  case 
  of 
  a 
  rubber 
  plan- 
  

   tation. 
  It 
  has 
  been 
  found 
  that 
  the 
  best 
  situation 
  for 
  a 
  coconut 
  plan- 
  

   tation 
  is 
  near 
  the 
  sea 
  or 
  along 
  the 
  banks 
  of 
  a 
  river 
  where 
  the 
  soil 
  is 
  

   well 
  drained 
  and 
  supplied 
  with 
  moisture 
  throughout 
  the 
  year. 
  Accord- 
  

   ing 
  to 
  Mr. 
  W. 
  W. 
  Froggat 
  a 
  few 
  pounds 
  of 
  kainit 
  dug 
  in 
  about 
  the 
  

   roots 
  of 
  fruit 
  trees 
  will 
  drive 
  away 
  white 
  ants. 
  [See 
  this 
  Review, 
  

   Ser. 
  A. 
  i, 
  p. 
  513.] 
  

  

  Martelli 
  (G.) 
  II 
  Tetranychus 
  telarius, 
  L., 
  provoca 
  agli 
  Agrumi 
  la 
  cosi 
  

   detta 
  Ruggia 
  rossa. 
  [Tetranychus 
  telarius, 
  L., 
  the 
  cause 
  of 
  the 
  

   so-called 
  red 
  rust 
  on 
  citrus 
  trees.] 
  — 
  Giorn. 
  Agric. 
  Merid., 
  Messina, 
  

   vii, 
  nos. 
  1-2, 
  Jan.-Feb. 
  1914, 
  pp. 
  7-10. 
  

  

  Many 
  lime 
  trees 
  were 
  almost 
  completely 
  defoliated 
  in 
  parts 
  of 
  the 
  

   provinces 
  of 
  Messina 
  and 
  Catania 
  during 
  June 
  and 
  July, 
  1912. 
  The 
  

   upper 
  side 
  of 
  the 
  leaves 
  showed 
  yellow 
  patches 
  and 
  the 
  corresponding 
  

   places 
  on 
  the 
  under 
  side 
  were 
  reddish. 
  The 
  fruit 
  was 
  spotted 
  with 
  

   brownish 
  red. 
  Among 
  the 
  growers 
  this 
  was 
  known 
  as 
  red 
  rust. 
  The 
  

   author 
  states, 
  as 
  the 
  result 
  of 
  careful 
  experiments, 
  that 
  the 
  injured 
  

   leaves 
  and 
  fruit 
  harbour 
  Tetranychus 
  telarius, 
  L., 
  and 
  this 
  mite 
  is 
  

   responsible 
  for 
  the 
  discoloration. 
  

  

  Martelli 
  (C). 
  Sulla 
  Bianca-rossa. 
  [Concerning 
  Chrysomphalus.'\ 
  — 
  

   Giorn. 
  Agric. 
  Merid., 
  Messina, 
  vii, 
  nos. 
  1-2, 
  Jan.-Feb. 
  1914, 
  

   pp. 
  28-29. 
  

  

  In 
  a 
  reply 
  to 
  a 
  correspondent 
  the 
  following 
  data 
  are 
  given 
  : 
  (1) 
  Six 
  

   hundred 
  large 
  lime 
  trees 
  infested 
  with 
  Chrysomphalus 
  require 
  70 
  pints 
  

   of 
  concentrated 
  polysulphide 
  (density 
  25° 
  B.) 
  5 
  per 
  cent, 
  solution 
  

   per 
  tree 
  per 
  application, 
  or 
  2,100 
  pints 
  of 
  concentrated 
  polysulphide 
  

   weighing 
  2,860 
  lb. 
  ; 
  as 
  three 
  applications 
  are 
  necessary, 
  the 
  total 
  

   weight 
  would 
  be 
  8,580 
  lb. 
  (2) 
  The 
  number 
  of 
  applications 
  may 
  be 
  

   reduced 
  to 
  two, 
  with 
  a 
  corresponding 
  reduction 
  in 
  the 
  amount 
  of 
  

   insecticide, 
  but 
  in 
  that 
  case 
  an 
  operator 
  must 
  spray 
  the 
  top 
  of 
  the 
  tree 
  

   from 
  a 
  high 
  ladder. 
  (3) 
  A 
  single 
  application 
  of 
  20 
  per 
  cent, 
  solution 
  

   in 
  winter 
  is 
  not 
  sufficient 
  ; 
  two 
  applications 
  are 
  required 
  and 
  they 
  

   must 
  be 
  carried 
  out 
  as 
  stated. 
  Furthermore, 
  the 
  neighbouring 
  

   plantations 
  must 
  be 
  either 
  clean 
  or 
  under 
  similar 
  control 
  measures. 
  

   The 
  effects 
  of 
  the 
  treatment 
  will 
  last 
  for 
  two 
  years, 
  if 
  not 
  longer, 
  and 
  

   no 
  spraying 
  will 
  be 
  required 
  during 
  that 
  period. 
  

  

  