﻿CONTENTS. 
  

  

  PAGE 
  

  

  Introductory 
  Note 
  iv 
  

  

  Recent 
  Work 
  on 
  the 
  San 
  Jose 
  Scale 
  i 
  

  

  Discovery 
  of 
  New 
  Illinois 
  Localities 
  3 
  

  

  Increased 
  Area 
  infected 
  in 
  Old 
  Situations 
  5 
  

  

  Inspection 
  of 
  Nurseries 
  7 
  

  

  Expenses 
  of 
  Nursery 
  Inspection, 
  1897 
  and 
  1898 
  10 
  

  

  Insecticide 
  Treatment 
  11 
  

  

  Location 
  of 
  Colonies 
  12 
  

  

  Extermination 
  of 
  the 
  Scale 
  13 
  

  

  Bulletin 
  of 
  Information 
  13 
  

  

  Description 
  of 
  Apparatus 
  14 
  

  

  Details 
  of 
  Treatment, 
  with 
  Results 
  16 
  

  

  Difficulties 
  of 
  Cociperation 
  26 
  

  

  General 
  Insecticide 
  Procedure 
  29 
  

  

  An 
  Efficient 
  Fungous 
  Disease 
  30 
  

  

  Field 
  Notes 
  on 
  Fungous 
  Infection 
  37 
  

  

  Neighborhood 
  of 
  Sparta 
  37 
  

  

  Richview, 
  111 
  39 
  

  

  Experiments 
  with 
  Insecticide 
  Sprays 
  40 
  

  

  Tests 
  of 
  ' 
  ' 
  Success 
  Kerosene 
  Sprayer 
  " 
  41 
  

  

  Miscellaneous 
  Field 
  Memoranda 
  42 
  

  

  Explanation 
  of 
  Plates 
  44 
  

  

  The 
  Economic 
  Entomology 
  of 
  the 
  Sugar 
  Beet 
  49 
  

  

  Examples 
  of 
  Insect 
  Injury 
  to 
  the 
  Beet 
  51 
  

  

  Principal 
  Preventive 
  and 
  Remedial 
  Measures 
  52 
  

  

  Classification 
  of 
  the 
  Sugar 
  Beet 
  Insects 
  55 
  

  

  Key 
  for 
  the 
  Recognition 
  of 
  Insect 
  Injuries 
  to 
  Beets 
  56 
  

  

  Detailed 
  Discussion 
  of 
  Groups 
  and 
  Injuries 
  57 
  

  

  The 
  Red 
  Spider 
  ( 
  Tctrayiychiis) 
  58 
  

  

  The 
  Beet 
  Leaf-miners 
  {Chortophila 
  and 
  Pegoynyid) 
  59 
  

  

  The 
  Leaf-hoppers 
  {Jassoidea 
  and 
  Delfhacince) 
  62 
  

  

  The 
  Tree-hoppers 
  {Membracida) 
  80 
  

  

  Plan 
  t-lice 
  [^Aphididce) 
  80 
  

  

  The 
  Flatas 
  or 
  Lantern-flies 
  {Ormenis 
  and 
  Chlorochrod) 
  83 
  

  

  The 
  Pigweed 
  Bug 
  {Picsma 
  cinered) 
  85 
  

  

  The 
  Common 
  Flower 
  Bug 
  {Triphlefs 
  hisidiosus) 
  86 
  

  

  The 
  Leaf-bugs 
  [Capsidce) 
  86 
  

  

  The 
  Smaller 
  Plant-bugs 
  {Lygccida:) 
  93 
  

  

  The 
  Squash-bug 
  Family 
  {Coreida;) 
  96 
  

  

  The 
  Stink-bug 
  Family 
  (Pe?itatomidcc) 
  97 
  

  

  The 
  Negro-bugs 
  ( 
  Corimelccnida) 
  99 
  

  

  The 
  Cutworms 
  {Ag-rolis, 
  Noctua, 
  etc.) 
  100 
  

  

  Leaf-rollers 
  ( 
  Tortj-icidcc 
  and 
  Pyratistidce) 
  105 
  

  

  The 
  Garden 
  Web-worms 
  {Loxostege 
  and 
  Hellula) 
  106 
  

  

  The 
  Leaf-beetles 
  {Chrysonielidce) 
  112 
  

  

  Grasshoppers 
  {Acrididcc 
  and 
  Locustidce) 
  128 
  

  

  Other 
  Leaf-eating 
  Beetles 
  {Clivina 
  and 
  Silphd) 
  136 
  

  

  Blister-beetles 
  {Mcloidce) 
  137 
  

  

  Snout-beetles 
  (Khynchophora) 
  142 
  

  

  The 
  Exposed 
  Leaf-eating 
  Caterpillars 
  145 
  

  

  Root-lice 
  {Afhididcc 
  and 
  Cocctdcv) 
  159 
  

  

  Wireworms 
  {Elateridcc) 
  161 
  

  

  White 
  Grubs 
  {Lachnoster7ia 
  and 
  Ligyrus) 
  163 
  

  

  Technical 
  List 
  of 
  Species 
  of 
  Beet 
  Insects 
  166 
  

  

  Economic 
  Bibliography 
  170 
  

  

  