﻿which 
  $5-55 
  was 
  for 
  traveling 
  expenses 
  and 
  $4.88 
  for 
  the 
  pay 
  of 
  

   inspector. 
  

  

  The 
  insecticide 
  measures 
  undertaken 
  have 
  covered 
  thoroughly 
  and 
  

   carefully 
  all 
  the 
  known 
  points 
  infested 
  with 
  the 
  exception 
  of 
  six, 
  at 
  two 
  

   of 
  which 
  the 
  distribution 
  of 
  the 
  scale 
  was 
  so 
  widespread 
  that 
  it 
  was 
  

   impossible 
  with 
  the 
  funds 
  at 
  the 
  service 
  of 
  the 
  office 
  to 
  go 
  over 
  the 
  

   entire 
  ground. 
  At 
  one 
  of 
  these 
  (Richview) 
  the 
  premises 
  worst 
  infested 
  

   were 
  carefully 
  treated 
  and 
  all 
  those 
  less 
  seriously 
  involved 
  were 
  sprayed 
  

   sufficiently 
  to 
  prevent 
  the 
  spread 
  of 
  the 
  scale 
  from 
  them 
  for 
  the 
  season. 
  

   At 
  a 
  second 
  (Sparta) 
  numerous 
  orchard 
  experiments 
  with 
  insecticides 
  

   were 
  made 
  and 
  most 
  of 
  the 
  premises 
  seriously 
  infested 
  by 
  the 
  San 
  Jose 
  

   scale 
  were 
  thoroughly 
  and 
  successfully 
  infected 
  with 
  two 
  parasitic 
  fungi 
  

   causing 
  contagious 
  diseases 
  of 
  this 
  insect. 
  These 
  fungi, 
  both 
  obtained 
  

   from 
  Florida 
  on 
  a 
  personal 
  visit 
  of 
  the 
  writer, 
  were 
  distributed 
  to 
  Illinois 
  

   orchards 
  partly 
  by 
  direct 
  transfer 
  of 
  twigs 
  and 
  branches 
  bearing 
  infected 
  

   scales 
  and 
  partly 
  by 
  means 
  of 
  extensive 
  artificial 
  cultures 
  of 
  the 
  fungi 
  

   made 
  for 
  this 
  purpose 
  at 
  my 
  office. 
  Both 
  methods 
  of 
  infection 
  were 
  

   entirely 
  successful, 
  and 
  one 
  of 
  these 
  fungous 
  diseases 
  of 
  the 
  San 
  Jose 
  

   scale 
  is 
  now 
  well 
  established 
  at 
  both 
  Sparta 
  and 
  Richview. 
  

  

  At 
  Mt. 
  Carmel, 
  the 
  third 
  of 
  these 
  localities, 
  all 
  trees 
  found 
  infested 
  

   on 
  our 
  earlier 
  inspections 
  were 
  thoroughly 
  treated 
  except 
  those 
  on 
  one 
  

   town 
  lot 
  to 
  which 
  the 
  owner 
  persistently 
  refused 
  us 
  access. 
  Later 
  

   examinations 
  have 
  shown, 
  however, 
  that 
  the 
  scale 
  was 
  more 
  widely 
  

   distributed 
  at 
  this 
  point, 
  both 
  within 
  and 
  without 
  the 
  town, 
  than 
  was 
  

   known 
  to 
  us 
  when 
  this 
  work 
  was 
  done, 
  and 
  much 
  additional 
  spraying 
  is 
  

   needed 
  at 
  and 
  near 
  that 
  place. 
  

  

  The 
  occurrence 
  of 
  the 
  scale 
  at 
  Browns, 
  in 
  Edwards 
  county, 
  and 
  

   also 
  on 
  a 
  farm 
  near 
  Worden, 
  in 
  Madison 
  county, 
  was 
  not 
  ascertained 
  

   until 
  my 
  field 
  parties 
  had 
  been 
  called 
  in, 
  owing 
  to 
  an 
  exhaustion 
  of 
  

   appropriations 
  available; 
  and 
  at 
  Villa 
  Ridge, 
  in 
  Pulaski 
  county, 
  reliance 
  

   on 
  the 
  efforts 
  of 
  the 
  owner 
  of 
  an 
  infested 
  orchard 
  to 
  clear 
  it 
  of 
  the 
  

   scale 
  by 
  cutting 
  out 
  infested 
  trees, 
  proved 
  to 
  be 
  ill 
  founded. 
  His 
  work 
  

   was 
  not 
  thoroughly 
  enough 
  done, 
  and 
  the 
  scale 
  still 
  continues 
  on 
  his 
  

   premises.* 
  

  

  Our 
  experimental 
  insecticide 
  work 
  was 
  done 
  mainly 
  with 
  kerosene, 
  

   either 
  pure 
  or 
  in 
  mechanical 
  mixture 
  with 
  water. 
  We 
  have 
  failed, 
  so 
  far, 
  to 
  

   find 
  conditions 
  under 
  which 
  this 
  insecticide 
  may 
  be 
  safely 
  and 
  success- 
  

   fully 
  used 
  by 
  orchardists 
  generally 
  for 
  the 
  destruction 
  of 
  scale 
  insects. 
  

  

  The 
  points 
  in 
  the 
  habits 
  and 
  cecology 
  of 
  the 
  scale 
  to 
  which 
  especial 
  

   attention 
  was 
  paid 
  were 
  the 
  length 
  of 
  life 
  of 
  the 
  young 
  scale 
  and 
  its 
  

  

  * 
  These 
  premises 
  have 
  since 
  been 
  cleared 
  of 
  the 
  scale 
  by 
  a 
  destruction 
  of 
  every- 
  

   thing 
  on 
  the 
  place 
  which 
  could 
  have 
  become 
  infested. 
  

  

  