﻿119 
  

  

  affected 
  potatoes 
  have 
  been 
  grown 
  be 
  used 
  again 
  for 
  the 
  same 
  crop. 
  

   Potatoes 
  should 
  never 
  be 
  left 
  exposed 
  in 
  the 
  field 
  or 
  store-room, 
  but 
  

   placed 
  at 
  once 
  in 
  bins, 
  pits 
  or 
  any 
  other 
  receptacle 
  where 
  the 
  moths 
  

   cannot 
  reach 
  them. 
  Trapping 
  by 
  means 
  of 
  lamps 
  is 
  of 
  use 
  in 
  destroy- 
  

   ing 
  the 
  moths, 
  which 
  fly 
  at 
  night. 
  Spraying 
  the 
  crops, 
  when 
  the 
  moths 
  

   begin 
  to 
  appear 
  is 
  advisable, 
  as 
  this 
  will 
  destroy 
  the 
  young 
  grubs 
  as 
  

   soon 
  as 
  they 
  begin 
  to 
  feed. 
  A 
  good 
  arsenical 
  spray 
  is 
  prepared 
  as 
  

   follows 
  : 
  — 
  Boil 
  1 
  lb. 
  white 
  arsenic 
  and 
  2 
  lb. 
  carbonate 
  of 
  soda 
  (crystals) 
  

   in 
  I 
  gal. 
  of 
  water 
  for 
  20 
  minutes 
  ; 
  separately 
  dissolve 
  7 
  lb. 
  arsenate 
  

   of 
  lead 
  in 
  1 
  gal. 
  warm 
  water 
  ; 
  when 
  both 
  mixtures 
  are 
  cold, 
  mix 
  them 
  

   together. 
  Bottle 
  into 
  twelve 
  1-pint 
  bottles, 
  and 
  use 
  one 
  bottle 
  to 
  

   30 
  gals, 
  of 
  water. 
  Mix 
  the 
  chemicals 
  in 
  wooden 
  buckets. 
  

  

  The 
  Potato 
  and 
  Tomato 
  Weevil 
  {Desiantha 
  nociva, 
  Lea) 
  is 
  a 
  com- 
  

   paratively 
  new 
  pest 
  of 
  the 
  potato. 
  It 
  does 
  considerable 
  damage, 
  and 
  

   both 
  larvae 
  and 
  adults 
  are 
  equally 
  destructive 
  ; 
  it 
  is 
  a 
  prolific 
  breeder, 
  

   and 
  every 
  possible 
  means 
  should 
  be 
  taken 
  to 
  prevent 
  its 
  spread. 
  All 
  

   weeds, 
  especially 
  marshmallows, 
  on 
  land 
  adjoining 
  potato 
  crops 
  

   should 
  be 
  destroyed. 
  Arsenate 
  of 
  lead 
  spray 
  has 
  been 
  experimentally 
  

   proved 
  to 
  keep 
  the 
  pest 
  in 
  check. 
  

  

  Jassids, 
  Leafhoppers 
  or 
  Froghoppers 
  are 
  found 
  in 
  large 
  numbers, 
  

   occasionally 
  doing 
  damage 
  to 
  young 
  leaves 
  and 
  shoots. 
  If 
  the 
  damage 
  

   bids 
  fair 
  to 
  be 
  serious 
  it 
  would 
  be 
  necessary 
  to 
  spray 
  the 
  crop 
  with 
  

   benzol 
  emulsion, 
  1 
  lb. 
  to 
  5 
  gals, 
  of 
  water. 
  

  

  The 
  Kutherglen 
  Bug 
  {Nysius 
  vinitor) 
  is 
  one 
  of 
  the 
  most 
  destructive 
  

   of 
  plant 
  bugs 
  in 
  Victoria. 
  The 
  prevention 
  and 
  remedies 
  are 
  those 
  

   which 
  are 
  recommended 
  for 
  thrips. 
  

  

  A 
  large 
  number 
  of 
  species 
  of 
  mre 
  worms 
  (Elateridae) 
  are 
  found 
  in 
  

   Victoria, 
  where 
  however, 
  they 
  do 
  not 
  make 
  much 
  headway, 
  owing 
  no 
  

   doubt 
  to 
  natural 
  enemies. 
  One 
  of 
  the 
  best 
  methods 
  of 
  keeping 
  wire 
  

   worms 
  under 
  control 
  is 
  to 
  turn 
  the 
  ground 
  over 
  frequently, 
  exposing 
  

   the 
  insects 
  to 
  birds. 
  Poisoned 
  baits, 
  made 
  by 
  cutting 
  up 
  a 
  few 
  turnips, 
  

   carrots, 
  etc., 
  and 
  soaking 
  them 
  in 
  arsenate 
  of 
  lead, 
  have 
  given 
  good 
  

   results. 
  Manurial 
  insecticides 
  worked 
  into 
  the 
  soil 
  have 
  also 
  been 
  

   tried 
  w^th 
  success. 
  

  

  The 
  Victorian 
  White 
  Ant 
  (Termes 
  lactis, 
  Froggatt) 
  is 
  a 
  destroyer 
  of 
  

   timber 
  and 
  furniture, 
  as 
  well 
  as 
  apricot, 
  plum 
  and 
  other 
  fruit 
  trees, 
  

   \'ines, 
  potatoes, 
  etc. 
  Although 
  it 
  has 
  so 
  far 
  caused 
  no 
  serious 
  damage 
  

   to 
  potatoes, 
  it 
  should 
  be 
  watched, 
  and, 
  if 
  the 
  circumstances 
  warrant, 
  all 
  

   old 
  stumps, 
  etc., 
  which 
  harbour 
  the 
  insect 
  should 
  be 
  removed. 
  Another 
  

   plan 
  is 
  to 
  dig 
  Vaporite 
  into 
  the 
  soil, 
  which 
  is 
  then 
  pressed 
  firmly 
  down 
  ; 
  

   the 
  quantity 
  of 
  Vaporite 
  used 
  is 
  generally 
  at 
  the 
  rate 
  of 
  225 
  lb. 
  per 
  acre 
  

   for 
  light 
  soils, 
  and 
  about 
  350 
  lb. 
  for 
  heavy 
  soils. 
  Manurial 
  insecticide 
  

   worked 
  into 
  the 
  soil 
  has 
  given 
  good 
  results. 
  

  

  Symons 
  (T. 
  B.) 
  and 
  Cory 
  (E. 
  N.). 
  Miscellaneous 
  Insect 
  Pests. 
  — 
  

   Maryland 
  Agric. 
  Exper. 
  Sta., 
  College 
  Park, 
  Bull. 
  175, 
  March 
  

   1913, 
  pp. 
  171-179. 
  [Received 
  31st 
  Jan. 
  1914.] 
  

  

  A 
  formula 
  is 
  given 
  for 
  a 
  hme-sulphur 
  spray 
  against 
  San 
  Jose 
  scale 
  

   {Aspidiotus 
  perniciosus), 
  and 
  for 
  terrapin 
  scale, 
  (Lecanium 
  nigrofas- 
  

   ciatum), 
  a 
  standard 
  miscible 
  oil 
  at 
  a 
  strength 
  of 
  1:15, 
  applied 
  to 
  the 
  

   tree 
  as 
  late 
  in 
  the 
  spring 
  as 
  possible, 
  is 
  recommended. 
  The 
  woolly 
  

   apple 
  aphis 
  {Eriosoma 
  lanigerum) 
  is 
  stated 
  to 
  be 
  very 
  common 
  in 
  apple 
  

  

  