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  made 
  in 
  the 
  nursery 
  where 
  it 
  is 
  more 
  convenient 
  to 
  spray 
  and 
  where 
  

   the 
  necessity 
  is, 
  perhaps, 
  a 
  little 
  more 
  pronounced, 
  and 
  there 
  it 
  is, 
  

   undoubtedly, 
  a 
  proper 
  practice 
  to 
  spray 
  and 
  fight 
  out 
  the 
  pecan 
  leaf 
  

   diseases. 
  Bordeaux 
  mixture 
  is 
  the 
  thing 
  to 
  be 
  used 
  on 
  all 
  occasions. 
  

   The 
  pecan 
  resists 
  copper 
  poisoning 
  almost 
  as 
  well 
  as 
  the 
  grape 
  and 
  

   oan 
  be 
  sprayed 
  with 
  safety. 
  

  

  If 
  a 
  pecan 
  tree 
  has 
  crown 
  gall 
  don't 
  plant 
  it. 
  All 
  nursery 
  trees 
  

   should 
  be 
  rejected 
  in 
  planting 
  if 
  they 
  show 
  signs 
  of 
  this 
  disease. 
  

   The 
  pecan 
  has 
  fungus 
  root-rot 
  and 
  various 
  wood 
  rot 
  fungi 
  besides 
  

   the 
  leaf 
  diseases. 
  It 
  also 
  has 
  several 
  other 
  troubles 
  more 
  or 
  less 
  

   serious. 
  Occasionally 
  in 
  the 
  pecan 
  groves 
  you 
  will 
  fijid 
  these 
  re- 
  

   markably 
  white 
  mildewed 
  nuts. 
  That 
  gives 
  way 
  to 
  spraying. 
  

   Anothe]' 
  disease 
  is 
  an 
  internal 
  spot 
  on 
  the 
  kernel 
  which 
  ]\Ir. 
  Rand 
  

   has 
  been 
  working 
  on 
  and 
  which 
  seems 
  to 
  be 
  due 
  to 
  a 
  fungus. 
  We 
  

   don't 
  know 
  how 
  to 
  prevent 
  that 
  yet. 
  The 
  pecan 
  has 
  a 
  fungus 
  attack- 
  

   ing 
  it 
  that 
  is 
  very 
  similar 
  to 
  the 
  bitter 
  rot 
  of 
  the 
  apple. 
  The 
  pecan 
  

   anthracnose 
  looks 
  like 
  the 
  bitter 
  rot, 
  has 
  the 
  same 
  pink 
  spore 
  masses 
  

   and 
  you 
  will 
  be 
  able 
  to 
  recognize 
  it. 
  That 
  may 
  be 
  prevented 
  by 
  

   spraying, 
  but 
  it 
  is, 
  fortunately, 
  not 
  a 
  serious 
  disease. 
  The 
  northern 
  

   nut 
  grower 
  will 
  not 
  have 
  so 
  much 
  trouble 
  with 
  that, 
  as 
  it 
  is 
  a 
  south- 
  

   ern 
  disease. 
  Here 
  is 
  a 
  physiological 
  trouble 
  that 
  causes 
  blackening 
  

   of 
  the 
  young 
  nuts 
  on 
  the 
  inside. 
  It 
  appears 
  to 
  me 
  to 
  be 
  due 
  mainly 
  

   to 
  wet 
  weather, 
  but 
  I 
  don't 
  know 
  its 
  exact 
  nature. 
  It 
  came 
  prima- 
  

   rily 
  on 
  a 
  pecan 
  raised 
  in 
  the 
  semi-arid 
  section 
  of 
  Texas 
  and 
  brought 
  

   into 
  South 
  Carolina, 
  and 
  by 
  the 
  way 
  you 
  can 
  get 
  as 
  much 
  trouble 
  in 
  

   adapting 
  trees 
  from 
  the 
  western 
  to 
  the 
  eastern 
  United 
  States 
  as 
  in 
  

   bringing 
  in 
  trees 
  from 
  other 
  countries. 
  In 
  parts 
  of 
  semi-arid 
  Texas 
  

   the 
  trees 
  are 
  supplied 
  with 
  moisture 
  by 
  sub-irrigation 
  and 
  when 
  we 
  

   move 
  those 
  pecans 
  to 
  the 
  humid 
  East 
  we 
  get 
  almost 
  as 
  much 
  non- 
  

   adjustment 
  as 
  when 
  we 
  bring 
  in 
  foreign 
  things. 
  I 
  would 
  suggest 
  

   that 
  these 
  pecans 
  from 
  western 
  Texas 
  are 
  the 
  very 
  ones 
  to 
  take 
  to 
  

   Utah 
  and 
  California 
  rather 
  than 
  those 
  from 
  the 
  eastern 
  part 
  of 
  the 
  

   United 
  States. 
  They 
  are 
  adjusted 
  to 
  dry 
  seasons 
  with 
  moisture 
  at 
  

   their 
  roots 
  and 
  you 
  will 
  get 
  the 
  best 
  results 
  from 
  them 
  when 
  grown 
  

   under 
  irrigation. 
  

  

  I 
  will 
  now 
  take 
  up 
  the 
  walnut, 
  Juglans 
  nigra, 
  the 
  common 
  black 
  

   waLuut. 
  There 
  are 
  twenty 
  species 
  of 
  fungi 
  which 
  are 
  kno\vn 
  to 
  

   attack 
  it. 
  Quite 
  a 
  good 
  many 
  of 
  these 
  attack 
  the 
  twigs 
  and 
  cause 
  

   them 
  to 
  die, 
  and 
  probably 
  half 
  are 
  leaf 
  diseases. 
  One, 
  commonly 
  

   called 
  white 
  rust, 
  a 
  disease 
  of 
  the 
  leaves, 
  attracts 
  mycologists 
  in 
  col- 
  

   lecting, 
  but 
  it 
  has 
  never 
  been 
  of 
  serious 
  economic 
  importance. 
  

  

  Now, 
  as 
  to 
  the 
  butternut, 
  Juglans 
  cinerea. 
  It 
  has 
  about 
  nineteen 
  

  

  