﻿ORCHARD 
  INSECTS 
  PACIFIC 
  IS'ORTHWEST 
  

  

  57 
  

  

  Common 
  name 
  Scientific 
  name 
  

  

  *Syneta 
  leaf 
  beetle 
  Syneta 
  albida 
  Lee. 
  

  

  Thistle 
  aphid 
  Anuraphis 
  cardui 
  (L.) 
  

  

  Two-spotted 
  spider 
  mite 
  Tetranychus 
  bimaculatus 
  Harvey 
  

  

  Walnut 
  aphid 
  Chromaphis 
  juglandicola 
  (Kltb.) 
  

  

  Western 
  tent 
  caterpillar 
  Malacosoma 
  pluviale 
  (Dyar) 
  

  

  Western 
  tussock 
  moth 
  Hemerocampa 
  vetusta 
  (Bdvl.) 
  

  

  * 
  Willamette 
  mite 
  Tetranychus 
  willamettei 
  IMcG. 
  

  

  Woolly 
  apple 
  aphid 
  Eriosoma 
  lanigerum 
  (Hausm.) 
  

  

  ♦Name 
  does 
  not 
  appear 
  in 
  list 
  of 
  Common 
  Names 
  of 
  Insects 
  Approved 
  by 
  The 
  American 
  Association 
  of 
  

   Economic 
  Entomologists. 
  

  

  INSECTICIDES 
  are 
  not 
  true 
  insects. 
  Some 
  ma- 
  

  

  terials 
  may 
  act 
  both 
  as 
  stomach 
  

  

  Fortunately, 
  most 
  of 
  the 
  insect 
  poisons 
  and 
  as 
  contact 
  insecticides, 
  

   pests 
  of 
  fruit 
  trees 
  spend 
  at 
  least 
  The 
  insecticides 
  discussed 
  in 
  the 
  

   part 
  of 
  their 
  lives 
  where 
  fruit 
  following 
  pages 
  have 
  been 
  used 
  

   growers 
  can 
  control 
  them 
  with 
  in- 
  extensively 
  with 
  success. 
  The 
  

   secticides. 
  Annual 
  crops 
  may 
  worth 
  of 
  others 
  has 
  not 
  yet 
  been 
  

   often 
  be 
  protected 
  from 
  serious 
  proved 
  although 
  they 
  may 
  already 
  

   insect 
  injury 
  by 
  following 
  certain 
  be 
  in 
  practical 
  use. 
  As 
  a 
  rule 
  the 
  

   practices 
  of 
  planting, 
  harvesting, 
  fruit 
  grower 
  will 
  find 
  that 
  the 
  

   cultivating, 
  and 
  crop 
  rotation, 
  but 
  standard 
  materials, 
  with 
  known 
  

   with 
  fruit 
  trees 
  these 
  methods 
  are 
  ingredients, 
  are 
  the 
  most 
  effective 
  

   usually 
  out 
  of 
  the 
  question, 
  and 
  economical. 
  Products 
  the 
  in- 
  

   Spraying 
  is 
  expensive, 
  but 
  its 
  cost 
  gredients 
  of 
  which 
  are 
  unknown 
  

   is 
  small 
  compared 
  with 
  the 
  value 
  should 
  be 
  avoided, 
  as 
  they 
  are 
  

   of 
  the 
  crop. 
  often 
  worthless. 
  The 
  Federal 
  In- 
  

  

  Insects 
  feed 
  in 
  two 
  ways. 
  Some 
  secticide, 
  Fungicide, 
  and 
  Rodenti- 
  

   bite 
  off 
  and 
  swallow 
  portions 
  of 
  cide 
  Act, 
  which 
  regulates 
  the 
  

   the 
  fruit 
  or 
  foliage. 
  Others 
  have 
  marketing 
  of 
  insecticides 
  that 
  are 
  

   mouths 
  in 
  the 
  form 
  of 
  a 
  sucking 
  shipped 
  from 
  one 
  State 
  to 
  another, 
  

   apparatus, 
  which 
  they 
  insert 
  into 
  requires 
  that 
  they 
  bear 
  a 
  label 
  

   the 
  plant 
  tissues 
  and 
  through 
  giving 
  the 
  percentages 
  of 
  both 
  

   which 
  they 
  draw 
  out 
  the 
  plant 
  active 
  and 
  inert 
  materials. 
  The 
  

   juices. 
  Many 
  of 
  the 
  biting 
  in- 
  States 
  in 
  the 
  Pacific 
  Northwest 
  

   sects 
  may 
  be 
  destroyed 
  by 
  keeping 
  have 
  similar 
  laws 
  governing 
  the 
  

   the 
  trees 
  covered 
  with 
  a 
  poisonous 
  sale 
  of 
  insecticides. 
  Growers 
  

   material, 
  which 
  the 
  insects 
  eat 
  with 
  should 
  therefore 
  refuse 
  to 
  buy 
  any 
  

   their 
  food. 
  The 
  young 
  of 
  the 
  material 
  offered 
  for 
  sale 
  as 
  an 
  in- 
  

   codling 
  moth 
  and 
  other 
  moths, 
  secticide 
  unless 
  it 
  is 
  properly 
  

   beetles, 
  sawflies, 
  grasshoppers, 
  and 
  labeled. 
  

  

  crickets 
  are 
  biting 
  insects. 
  The 
  Any 
  insecticide 
  residue 
  on 
  the 
  

   insects 
  with 
  sucking 
  mouth 
  parts 
  harvested 
  fruit 
  in 
  quantities 
  large 
  

   are 
  not 
  affected 
  by 
  poisons 
  placed 
  enough 
  to 
  endanger 
  the 
  health 
  of 
  

   on 
  the 
  surface 
  of 
  the 
  leaves 
  or 
  the 
  consumer 
  must 
  be 
  removed 
  by 
  

   fruit. 
  For 
  their 
  control 
  contact 
  washing 
  or 
  wipnig 
  before 
  the 
  fruit 
  

   insecticides, 
  which 
  poison 
  the 
  in- 
  is 
  marketed. 
  Usually 
  it 
  is 
  not 
  

   sects 
  through 
  their 
  breathing 
  pores 
  necessary 
  to 
  apply 
  an 
  insecticide 
  

   or 
  by 
  a 
  corrosive 
  action 
  on 
  their 
  so 
  near 
  harvest 
  that 
  dangerous 
  

   bodies, 
  must 
  be 
  used. 
  The 
  scale 
  residues 
  will 
  remain 
  on 
  the 
  fruit. 
  

  

  insects, 
  aphids, 
  leaf 
  hoppers, 
  tree- 
  Many 
  insecticides 
  are 
  poisonous 
  to 
  bees 
  

   hoppers, 
  and 
  the 
  true 
  bugs 
  are 
  and 
  other 
  insects 
  that 
  pollinate 
  the 
  bios- 
  

  

  sucking 
  insects. 
  Red 
  spiders 
  also 
  rppir/nslXiS^wh/n'Sf^r^^steTn 
  

   teed 
  m 
  this 
  manner, 
  although 
  they 
  bloom. 
  If 
  possible, 
  also 
  avoid 
  spraying 
  

  

  