﻿110 
  DECIDUOUS 
  FKUIT 
  INSECTS 
  AND 
  INSECTICIDES. 
  

  

  the 
  buds 
  have 
  advanced 
  so 
  far 
  as 
  to 
  have 
  the 
  green 
  tips 
  exposed. 
  

   If 
  the 
  above 
  precautions 
  are 
  carefully 
  followed 
  in 
  applying 
  the 
  mis- 
  

   cible 
  oil, 
  danger 
  of 
  injury 
  to 
  trees 
  will 
  be 
  reduced 
  to 
  the 
  minimum. 
  

  

  There 
  are 
  a 
  number 
  of 
  good 
  commercial 
  brands 
  of 
  miscible 
  oil 
  on 
  

   the 
  market. 
  These 
  miscible 
  or 
  soluble 
  oils 
  are 
  so 
  made 
  that 
  they 
  

   mix 
  readily 
  with 
  water. 
  The 
  material 
  may 
  be 
  applied 
  either 
  by 
  hand 
  

   pump 
  or 
  gasoline-power 
  sprayers. 
  Power 
  outfits 
  are 
  to 
  be 
  preferred. 
  

   Nevertheless, 
  whichever 
  kind 
  of 
  outfit 
  is 
  employed, 
  it 
  is 
  essential 
  

   that 
  it 
  be 
  provided 
  with 
  a 
  good 
  working 
  agitator. 
  To 
  do 
  effective 
  

   work 
  it 
  is 
  also 
  necessary 
  to 
  have 
  sufficiently 
  long 
  spray 
  rods 
  and 
  leads 
  

   of 
  hose. 
  Nozzles 
  with 
  medium-sized 
  holes 
  or 
  apertures 
  are 
  recom- 
  

   mended. 
  

  

  Miscible 
  oils 
  at 
  the 
  strength 
  recommended 
  for 
  the 
  destruction 
  of 
  

   the 
  eggs 
  of 
  the 
  fruit-tree 
  leaf-roller 
  are 
  valuable 
  in 
  controlling 
  scale 
  

   insects 
  such 
  as 
  the 
  San 
  Jose 
  scale 
  (Aspidiotus 
  perniciosus 
  Comst.), 
  

   Howard 
  scale 
  (Aspidiotus 
  Jiowardi 
  Ckll.), 
  etc. 
  Orchards 
  sprayed 
  

   with 
  the 
  oil 
  for 
  the 
  leaf-rollers 
  will 
  not 
  require 
  the 
  usual 
  application 
  

   of 
  lime-sulphur 
  for 
  the 
  San 
  Jose 
  or 
  Howard 
  scales. 
  

  

  In 
  conjunction 
  with 
  the 
  oil 
  treatment 
  in 
  badly 
  infested 
  districts 
  it 
  

   is 
  recommended 
  that 
  a 
  very 
  thorough 
  application 
  of 
  arsenate 
  of 
  lead, 
  

   at 
  the 
  rate 
  of 
  3 
  pounds 
  to 
  50 
  gallons 
  of 
  water, 
  be 
  applied 
  when 
  the 
  

   larvae 
  are 
  emerging 
  from 
  the 
  eggs. 
  The 
  larvae 
  will 
  be 
  found 
  to 
  be 
  

   hatching 
  just 
  as 
  the 
  cluster 
  buds 
  on 
  early-blooming 
  varieties 
  of 
  

   apple 
  are 
  beginning 
  to 
  separate. 
  The 
  necessity 
  for 
  making 
  this 
  

   application 
  will 
  depend 
  largely 
  upon 
  the 
  thoroughness 
  with 
  which 
  

   the 
  miscible 
  oil 
  was 
  applied. 
  

  

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