﻿THE 
  FRUIT-TREE 
  LEAF-ROLLER. 
  109 
  

  

  miscible 
  oils. 
  The 
  ease 
  with 
  which 
  sprays 
  may 
  be 
  prepared 
  from 
  

   these 
  last 
  commend 
  them 
  to 
  many 
  orchardists 
  although 
  the 
  homemade 
  

   emulsions 
  are 
  cheaper. 
  In 
  preparing 
  a 
  kerosene 
  or 
  crude-petroleum 
  

   emulsion 
  care 
  is 
  necessary 
  to 
  insure 
  a 
  thorough 
  and 
  stable 
  emulsion. 
  

  

  It 
  should 
  be 
  stated 
  that 
  injury 
  to 
  trees 
  treated 
  with 
  oils 
  sometimes 
  

   follows, 
  although 
  no 
  such 
  injury 
  was 
  noted 
  in 
  connection 
  with 
  the 
  

   present 
  experiments. 
  No 
  more 
  spray 
  should 
  be 
  used 
  than 
  is 
  neces- 
  

   sary 
  properly 
  to 
  treat 
  the 
  tree, 
  and 
  the 
  puddling 
  of 
  oil 
  around 
  the 
  

   crown 
  should 
  be 
  guarded 
  against. 
  

  

  Lime-sulphur 
  solutions 
  proved 
  to 
  be 
  a 
  decided 
  failure 
  as 
  a 
  destroyer 
  

   of 
  the 
  egg 
  masses. 
  Strengths 
  ranging 
  from 
  1 
  gallon 
  of 
  lime-sulphur 
  

   to 
  7 
  gallons 
  of 
  water 
  to 
  1 
  gallon 
  of 
  lime-sulphur 
  to 
  10 
  gallons 
  of 
  water 
  

   were 
  sprayed 
  on 
  apple 
  trees 
  and 
  no 
  benefit 
  was 
  derived 
  from 
  

   their 
  use. 
  

  

  RECOMMENDATIONS 
  FOR 
  CONTROL. 
  

  

  Experimental 
  work 
  has 
  shown 
  that 
  the 
  best 
  method 
  for 
  controlling 
  

   the 
  fruit-tree 
  leaf-roller 
  is 
  by 
  a 
  very 
  thorough 
  application 
  of 
  a 
  mis- 
  

   cible 
  oil 
  at 
  the 
  rate 
  of 
  1 
  gallon 
  to 
  15 
  gallons 
  of 
  water 
  during 
  the 
  dor- 
  

   mant 
  season. 
  It 
  must 
  be 
  understood 
  that 
  by 
  thoroughness 
  of 
  appli- 
  

   cation 
  is 
  meant 
  the 
  use 
  of 
  enough 
  material 
  to 
  cover 
  all 
  parts 
  of 
  the 
  

   tree, 
  from 
  the 
  tip 
  of 
  the 
  highest 
  or 
  smallest 
  branch 
  to 
  the 
  very 
  base 
  

   of 
  the 
  trunk. 
  In 
  order 
  to 
  do 
  thorough 
  work 
  the 
  trees 
  must 
  neces- 
  

   sarily 
  be 
  sprayed 
  from 
  all 
  directions. 
  It 
  is 
  very 
  often 
  the 
  case 
  that 
  

   the 
  top 
  branches 
  or 
  those 
  around 
  the 
  inside 
  are 
  missed 
  by 
  the 
  man 
  

   operating 
  the 
  rod. 
  It 
  must 
  be 
  remembered 
  that 
  only 
  those 
  egg 
  masses 
  

   actually 
  hit 
  or 
  covered 
  with 
  the 
  material 
  will 
  fail 
  to 
  hatch 
  and 
  those 
  

   missed 
  will 
  surely 
  hatch 
  out 
  "worms" 
  in 
  the 
  spring 
  to 
  feed 
  upon 
  

   the 
  trees. 
  Orchardists 
  should 
  realize 
  that 
  thorough 
  spraying 
  with 
  

   the 
  right 
  material 
  and 
  at 
  the 
  proper 
  time 
  pays 
  well, 
  but 
  careless, 
  

   haphazard 
  work 
  gives 
  disappointing 
  returns. 
  

  

  All 
  plants 
  upon 
  which 
  eggs 
  have 
  been 
  laid 
  should 
  be 
  sprayed. 
  

   Besides 
  fruit 
  trees, 
  egg 
  masses 
  may 
  be 
  found 
  on 
  various 
  shade 
  trees, 
  

   shrubs, 
  and 
  currant, 
  .gooseberry, 
  raspberry, 
  and 
  rose 
  bushes, 
  etc. 
  

   Eggs 
  will 
  also 
  be 
  found 
  on 
  buildings, 
  spray 
  outfits, 
  wagons, 
  fences, 
  

   etc., 
  and 
  it 
  is 
  -recommended 
  that 
  these 
  egg 
  masses 
  be 
  crushed 
  so 
  far 
  

   as 
  is 
  practicable. 
  

  

  The 
  best 
  time 
  to 
  spray 
  is 
  just 
  before 
  the 
  buds 
  burst 
  in 
  the 
  spring. 
  

   Late 
  spring 
  is 
  preferable 
  to 
  early 
  spring, 
  as 
  weather 
  conditions 
  are 
  

   usually 
  more 
  favorable. 
  There 
  is 
  also 
  less 
  likelihood 
  of 
  injury 
  to 
  the 
  

   trees 
  by 
  the 
  oil 
  after 
  the 
  sap 
  lias 
  begun 
  to 
  flow 
  with 
  considerable 
  

   pressure. 
  Spraying 
  should 
  not 
  be 
  done 
  during 
  threatening 
  weather. 
  

   Orchardists 
  should 
  bear 
  hi 
  mind 
  that 
  the 
  strength 
  of 
  miscible 
  oil 
  

   recommended 
  is 
  for 
  a 
  dormant 
  spray 
  and 
  should 
  never 
  be 
  applied 
  to 
  

   trees 
  in 
  foliage. 
  -Spraying 
  should 
  be 
  completed 
  in 
  (he 
  spring 
  before 
  

  

  