﻿48 
  

  

  branches 
  and 
  cankers, 
  once 
  in 
  October 
  1911, 
  then 
  in 
  early 
  sum- 
  

   mer 
  and 
  again 
  in 
  September 
  and 
  November 
  1912. 
  As 
  an 
  ex- 
  

   ample 
  take 
  tree 
  No. 
  6 
  which 
  was 
  studied, 
  December 
  14, 
  1912. 
  

   It 
  is 
  39 
  inches 
  in 
  diameter 
  at 
  breast 
  height, 
  and 
  approximately 
  

   70 
  feet 
  in 
  height. 
  On 
  this 
  one 
  tree 
  six 
  diseased 
  limbs 
  were 
  re- 
  

   moved, 
  and 
  sixteen 
  cankers 
  were 
  cut 
  out. 
  Of 
  these 
  sixteen, 
  two 
  

   infections 
  continued, 
  that 
  is, 
  were 
  not 
  completely 
  cut 
  out, 
  and 
  

   had 
  spread; 
  three 
  had 
  infections 
  below 
  old 
  limbs 
  which 
  had 
  

   been 
  removed, 
  and 
  eleven 
  were 
  healing 
  over. 
  This 
  tree 
  was 
  

   about 
  1000 
  feet 
  away 
  from 
  other 
  badly 
  infected 
  trees, 
  though 
  

   but 
  25 
  feet 
  away 
  from 
  other 
  chestnut 
  trees 
  in 
  the 
  same 
  row. 
  

   The 
  experiment 
  of 
  Mr. 
  DuPont 
  in 
  spraying 
  shows 
  what 
  can 
  be 
  

   done 
  on 
  valuable 
  lawn 
  trees. 
  On 
  the 
  whole, 
  these 
  trees 
  look 
  

   well 
  and 
  healthy. 
  Trees 
  which 
  were 
  not 
  sprayed 
  over 
  three 
  

   times 
  and 
  were 
  within 
  50-100 
  feet 
  from 
  badly 
  blighted 
  trees, 
  

   became 
  infected 
  in 
  so 
  many 
  different 
  places 
  that 
  it 
  will 
  be 
  nec- 
  

   essary 
  to 
  remove 
  them. 
  

  

  One 
  of 
  the 
  problems 
  to 
  be 
  solved 
  next 
  year 
  will 
  be 
  that 
  of 
  

   the 
  least 
  number 
  of 
  sprayings 
  which 
  will 
  be 
  effective 
  in 
  pre- 
  

   venting 
  new 
  infection. 
  

  

  The 
  Chairman: 
  The 
  question 
  of 
  the 
  chestnut 
  blight 
  is 
  now 
  

   open 
  for 
  discussion. 
  

  

  Mr. 
  Littlepage: 
  I 
  should 
  like 
  to 
  ask 
  these 
  gentlemen 
  how 
  

   far 
  west 
  they 
  have 
  heard 
  of 
  chestnut 
  blight 
  — 
  that 
  is, 
  heard 
  of 
  

   it 
  with 
  any 
  degree 
  of 
  authenticity, 
  and 
  also 
  whether 
  or 
  not 
  they 
  

   care 
  to 
  express 
  an 
  opinion 
  as 
  to 
  what 
  the 
  prospects 
  are 
  in 
  the 
  

   middle 
  west, 
  say 
  out 
  in 
  Indiana, 
  Illinois 
  and 
  Ohio 
  ? 
  

  

  Mr. 
  Pierce: 
  In 
  answer 
  to 
  that 
  question, 
  I 
  will 
  say 
  that 
  in 
  

   Pennsylvania 
  we 
  have 
  found 
  infections 
  in 
  Wayne 
  County 
  and 
  

   also 
  in 
  Fayette 
  County, 
  both 
  near 
  the 
  western 
  extreme 
  of 
  the 
  

   state, 
  but 
  those 
  have 
  been 
  attended 
  to, 
  very 
  largely, 
  and 
  the 
  

   boundaries 
  closely 
  determined. 
  In 
  Ohio 
  there 
  have 
  been 
  sev- 
  

   eral 
  reports 
  of 
  the 
  blight 
  being 
  found, 
  but 
  I 
  don't 
  think 
  either 
  

   of 
  the 
  reports 
  have 
  been 
  proven. 
  There 
  has 
  been 
  a 
  fungus 
  that 
  

   I 
  have 
  spoken 
  of 
  as 
  the 
  Connellsville 
  fungus, 
  that 
  has 
  been 
  all 
  

   around 
  in 
  that 
  neighborhood, 
  southwestern 
  Pennsylvania 
  and 
  

   eastern 
  Ohio. 
  

  

  The 
  Chairman: 
  Is 
  the 
  Connellsville 
  fungus 
  also 
  diaporthe 
  

   parasitical 
  

  

  Mr. 
  Pierce: 
  Yes, 
  sir. 
  It 
  was 
  placed 
  by 
  Mr. 
  Anderson, 
  who 
  

  

  