﻿54 
  

  

  Northern 
  Nut 
  Growers 
  Association 
  and 
  I 
  would 
  like 
  to 
  see 
  those 
  

   nuts 
  grown, 
  if 
  not 
  wild 
  in 
  the 
  woods, 
  at 
  least 
  in 
  cultivation. 
  

  

  There 
  might 
  be 
  a 
  few 
  things 
  of 
  interest 
  to 
  you 
  about 
  the 
  wild 
  

   hickory 
  nut. 
  According 
  to 
  Farlow's 
  Index 
  of 
  North 
  American 
  fungi 
  

   of 
  twenty-five 
  years 
  ago, 
  there 
  have 
  been 
  thirty-seven 
  species 
  of 
  fungi 
  

   collected 
  on 
  that 
  tree. 
  Probably 
  there 
  are 
  twice 
  that 
  number 
  as 
  a 
  

   matter 
  of 
  fact, 
  but 
  mycologists 
  have 
  collected, 
  described 
  and 
  named 
  

   thirty-seven 
  species 
  on 
  the 
  Hickoria 
  ovata, 
  the 
  plain 
  shagbark, 
  and 
  

   the 
  other 
  hickories 
  have 
  similar 
  numbers. 
  The 
  pecan 
  has 
  only 
  three 
  

   named 
  species 
  in 
  Farlow's 
  Index, 
  but 
  Mr. 
  Rand 
  has 
  got 
  together 
  

   three 
  times 
  as 
  many 
  I 
  think 
  — 
  I 
  am 
  not 
  sure 
  of 
  the 
  number. 
  

  

  Of 
  the 
  pecan 
  diseases, 
  the 
  pecan 
  scab 
  is 
  probably 
  the 
  most 
  con- 
  

   spicuous 
  fungus 
  trouble. 
  The 
  pecan 
  scab 
  is 
  the 
  most 
  typical 
  fungus 
  

   parasite 
  of 
  the 
  pecan. 
  It 
  attacks 
  the 
  leaves, 
  fruit, 
  etc. 
  It 
  attacks 
  

   the 
  vessels 
  or 
  veins 
  of 
  the 
  leaves 
  and 
  frequently 
  enters 
  by 
  means 
  of 
  

   aphis 
  punctures 
  which 
  break 
  the 
  skin 
  so 
  that 
  there 
  is 
  no 
  doubt 
  but 
  

   that 
  this 
  particular 
  disease 
  is 
  favored 
  by 
  an 
  aphis. 
  We 
  have 
  inves- 
  

   tigated 
  this 
  disease 
  quite 
  carefully 
  and 
  carried 
  on 
  a 
  series 
  of 
  spray- 
  

   ing 
  experiments 
  for 
  some 
  three 
  years 
  and 
  there 
  is 
  no 
  doubt 
  about 
  

   our 
  ability 
  to 
  control 
  it. 
  It 
  can 
  be 
  prevented 
  by 
  spraying 
  with 
  

   Bordeaux 
  mixture. 
  You 
  never 
  can 
  tell 
  how 
  many 
  sprayings 
  will 
  be 
  

   required. 
  It 
  may 
  take 
  three 
  to 
  ten 
  sprayings 
  to 
  protect 
  the 
  nuts. 
  

   The 
  leaves 
  are 
  grown 
  mostly 
  within 
  a 
  month 
  — 
  the 
  leaves 
  are 
  pushed 
  

   out 
  within 
  thirty 
  days 
  and 
  you 
  can 
  spraj^ 
  those 
  leaves 
  and 
  protect 
  

   them. 
  The 
  weak 
  point 
  in 
  the 
  treatment 
  is 
  that 
  the 
  nut 
  of 
  the 
  pecan 
  

   grows 
  steadily 
  from 
  the 
  time 
  it 
  starts 
  to 
  way 
  into 
  September. 
  This 
  

   makes 
  a 
  hard 
  problem 
  in 
  spraying 
  as 
  the 
  nut 
  keeps 
  expanding 
  and 
  

   forming 
  a 
  new 
  and 
  unprotected 
  surface 
  for 
  an 
  unreasonably 
  long 
  

   season 
  and 
  they 
  are 
  susceptible 
  to 
  scab 
  attacks 
  all 
  the 
  time, 
  so 
  you 
  

   have 
  the 
  problem 
  of 
  spraying 
  the 
  nuts 
  all 
  summer. 
  The 
  spray 
  does 
  

   not 
  stick 
  very 
  well 
  on 
  the 
  nuts. 
  The 
  result 
  is 
  that 
  we 
  advise 
  dodging 
  

   that 
  parasite 
  by 
  planting 
  the 
  non-susceptible 
  kinds 
  ; 
  it 
  is 
  much 
  better 
  

   and 
  cheaper. 
  It 
  is 
  certainly 
  an 
  encouraging 
  thing 
  that 
  you 
  can 
  

   plant 
  good 
  varieties, 
  that 
  do 
  not 
  scab 
  badly, 
  and 
  which 
  at 
  the 
  very 
  

   most 
  require 
  but 
  two 
  or 
  three 
  sprayings 
  to 
  protect 
  them 
  entirely, 
  

   and 
  in 
  a 
  great 
  majority 
  of 
  cases, 
  no 
  spraying 
  at 
  all. 
  Those 
  already 
  

   are 
  the 
  great 
  nuts 
  in 
  cultivation, 
  like 
  the 
  Stuart, 
  the 
  Schley 
  and 
  the 
  

   Frotscher. 
  Most 
  of 
  those 
  good 
  varieties 
  will 
  be 
  occasionally 
  attacked 
  

   by 
  scab 
  because 
  of 
  a 
  wet 
  season, 
  just 
  as 
  a 
  variety 
  of 
  apple 
  which 
  is 
  

   very 
  resistant 
  to 
  apple 
  scab 
  is 
  occasionally 
  attacked 
  by 
  that 
  disease. 
  

  

  The 
  pecan 
  has 
  quite 
  a 
  number 
  of 
  leaf-spot 
  fungi 
  and 
  most 
  of 
  

   those 
  we 
  have 
  tested 
  by 
  spraying. 
  These 
  experiments 
  have 
  been 
  

  

  