March  12,  1826. 
JOURNAL  OF  HORTICULTURE  AND  COTTAGE  GARDENER. 
235 
comparative  dryness  of  the  air  at  the  time.  Leaf  buds,  and  even  flower 
buds,  will  endure  very  low  temperatures  when  dry  conditions  have 
prevailed  for  some  time,  a  fact  with  which  every  observant  gardener  is 
acquainted,  though  we  seldom  see  a  reasonable  explanation  rf  it.  In 
low  districts  generally  cultivators  are  painfully  familiar  with  the  effects 
all  the  minute  parasitic  fungi,  it  spreads  very  rapidly.  It  first  appears 
as  reddish  spots  on  the  upper  surface  of  the  leaves ;  these  spots  gradually 
extend,  become  darker,  until  the  central  portion  shows  the  tissue  of 
the  leaf  is  dead,  and  the  whole  surface  becomes  densely  covered  in 
the  same  way. 
Fig.  39.— AN  ORCHID  HOUSE  AT  HIGHBURY. 
of  Bpring  frosts  when  their  neighbours  on  higher  land  escape,  but 
opinions  differ  as  to  what  is  the  actual  cause  of  injury. 
'f  “  Sunspot  ”  or  “  Sunburn  ”  in  Strawberries. 
Though  not  a  widely  prevalent  disease,  this  is  one  which  cannot  be 
safely  overlooked,  for  its  effects  uu  the  foliage  are  very  marked,  and  like 
When  this  appears  late  in  the 'season  it  is  very  injurious,  greatly 
reducing  the  strength  of  the  plants,  and  the  only  way  to  counteract  its 
effects  is  to  apply  a  weak  solution  of  the  Bordeaux  mixture  in  use  for  Potato 
disease,  but  this  is  only  a  check,  for  it  does  not  seem  to  destroy  it  until 
it  is  used  of  a  strength  that  becomes  dangerous  to  the  plants  themselves, 
—British  Gardener. 
