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  however, 
  fungus 
  material 
  is 
  often 
  scarce. 
  When 
  plentiful, 
  as 
  in 
  

   November, 
  the 
  grower 
  should 
  lay 
  in 
  a 
  supply 
  for 
  use 
  in 
  the 
  next 
  sum- 
  

   mer. 
  For 
  this 
  purpose 
  a 
  quantity 
  of 
  leaves 
  are 
  collected, 
  allowed 
  to 
  

   dry 
  for 
  a 
  day 
  or 
  two, 
  and 
  then 
  put 
  in 
  a 
  tight 
  tin 
  box 
  which 
  is 
  to 
  be 
  

   kept 
  in 
  a 
  cold 
  storage 
  room 
  where 
  the 
  temperature 
  is 
  usually 
  below 
  

   40° 
  F., 
  or 
  in 
  a 
  refrigerator. 
  In 
  some 
  circumstances 
  this 
  fungus 
  material 
  

   may 
  be 
  dried 
  and 
  kept 
  in 
  a 
  dry 
  condition 
  without 
  losing 
  its 
  power 
  to 
  

   germinate. 
  In 
  the 
  Experiment 
  Station 
  leaves 
  of 
  red 
  fungus 
  were 
  

   collected 
  in 
  December, 
  allowed 
  to 
  dry, 
  piled 
  loosely 
  in 
  an 
  open 
  box 
  

   and 
  kept 
  till 
  July. 
  They 
  were 
  then 
  used 
  to 
  spray 
  the 
  trees 
  and 
  the 
  

   results 
  were 
  as 
  good 
  as 
  those 
  from 
  spraying 
  with 
  material 
  kept 
  in 
  cold 
  

   storage. 
  

  

  Hood 
  (J. 
  D.). 
  On 
  a 
  Collection 
  of 
  Thysanoptera 
  from 
  Porto 
  Rico. 
  

  

  — 
  Insecutor 
  Inscitiae 
  Menstruus, 
  Washington, 
  i, 
  no. 
  12, 
  Dec. 
  1913, 
  

   pp. 
  149-154, 
  1 
  pi. 
  

  

  The 
  collection 
  of 
  Thysanoptera 
  reported 
  upon 
  by 
  the 
  author 
  contained 
  

   seven 
  species 
  ; 
  it 
  was 
  made 
  by 
  the 
  late 
  Dr. 
  C. 
  W. 
  Hooker 
  in 
  the 
  

   immediate 
  neighbourhood 
  of 
  Mayagiiez, 
  Porto 
  Rico. 
  Six 
  of 
  the 
  species 
  

   described 
  are 
  recorded 
  for 
  the 
  first 
  time 
  from 
  the 
  island 
  ; 
  one 
  species 
  

   is 
  new 
  and 
  a 
  new 
  genus 
  has 
  been 
  made 
  for 
  it, 
  namely, 
  Dinurothrips 
  

   hookeri. 
  The 
  following 
  species 
  were 
  taken 
  on 
  cultivated 
  plants 
  : 
  — 
  

   Heliothrips 
  haemorrhoidalis 
  on 
  cacao, 
  Frankliniella 
  tritici 
  on 
  orange 
  

   blossom, 
  Selenothrips 
  ruhrocinctus 
  on 
  cacao 
  and 
  Gynaikothrips 
  uzeli 
  on 
  

   tobacco. 
  

  

  Melle 
  (H. 
  a.). 
  Lucerne 
  {Medicago 
  sativa.) 
  — 
  Agric. 
  Journ. 
  Union 
  

   S. 
  Africa, 
  Pretoria, 
  vi, 
  no. 
  6, 
  Dec. 
  1913, 
  pp. 
  950-960. 
  

  

  In 
  this 
  paper 
  the 
  author 
  gives 
  the 
  history 
  of 
  this 
  plant 
  from 
  the 
  

   seed-bed 
  to 
  the 
  market. 
  He 
  notes 
  that 
  one 
  of 
  the 
  great 
  enemies 
  of 
  

   lucerne 
  at 
  Vryburg 
  is 
  the 
  lucerne 
  caterpillar 
  {Colias 
  electro). 
  The 
  

   perfect 
  insect 
  is 
  a 
  yellow 
  butterfly, 
  the 
  larva 
  being 
  a 
  smooth 
  green 
  

   caterpillar 
  that 
  feeds 
  ravenously 
  on 
  lucerne 
  and 
  will 
  play 
  havoc 
  with 
  

   a 
  crop. 
  Lounsbury 
  recommends 
  for 
  the 
  eradication 
  of 
  this 
  pest 
  the 
  

   cutting 
  of 
  the 
  lucerne 
  when 
  the 
  damage 
  threatens 
  to 
  be 
  great. 
  If 
  

   lucerne 
  is 
  under 
  irrigation 
  a 
  good 
  method 
  is 
  to 
  flood 
  it 
  continuously, 
  

   by 
  which 
  means 
  the 
  " 
  caterpillar 
  wilt 
  disease 
  " 
  will 
  be 
  induced 
  amongst 
  

   the 
  larvae. 
  

  

  GuENAUx 
  (G.). 
  Les 
  Maladies 
  des 
  Chrysanthemes. 
  [Diseases 
  of 
  

   Chrysanthemums.] 
  — 
  La 
  Vie 
  Agricole 
  et 
  Rurale, 
  Paris, 
  ii, 
  no. 
  51, 
  

   22nd 
  Nov. 
  1913, 
  p. 
  667. 
  

  

  A 
  fly, 
  Phytomyza 
  geniculata, 
  lays 
  its 
  eggs 
  in 
  the 
  leaves, 
  the 
  larvae 
  

   forming 
  mines 
  in 
  the 
  parench3rnia. 
  The 
  attacked 
  leaves 
  should 
  be 
  

   picked 
  off 
  and 
  burned, 
  and 
  the 
  plants 
  treated 
  with 
  a 
  1 
  per 
  cent, 
  solution 
  

   of 
  tobacco 
  juice 
  ; 
  they 
  should 
  be 
  sprayed 
  every 
  fortnight 
  subsequently 
  

   with 
  a 
  5 
  per 
  cent, 
  solution. 
  The 
  male 
  of 
  Calocoris 
  chenopodii, 
  an 
  

   Hemipteron, 
  sucks 
  the 
  buds, 
  and 
  the 
  female 
  lays 
  her 
  eggs 
  in 
  the 
  young 
  

   leaf-and 
  flower-buds. 
  The 
  treatment 
  recommended 
  is 
  spraying 
  with 
  

   1 
  per 
  cent, 
  solutions 
  of 
  tobacco 
  juice, 
  followed 
  by 
  apphcations 
  of 
  

   sulphur 
  to 
  the 
  young 
  shoots 
  and 
  buds. 
  Repeat 
  these 
  operations 
  every 
  

  

  