Possible fertilizer burn on a young Mountain Ash tree

Discussion in 'Woody Plants' started by Harlow, May 24, 2008.

  1. Harlow

    Harlow Member

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    I was wondering what else this may be besides fertilizer burn (if anything)....
    The tree in question is approximately 5 to 7 years old and it was fertilized last may/june with a 21-7-7 via liquid injection. Within a matter of a few weeks the trees leaves went from green, to orange then red to brown. This year it looks as though it is dead. There are no leaves coming out.
    Is this a cut and dry case of fertilizer burn or could it be something else? There are several other trees in the yard which also received the same fertilizer application and they look great.
    Any advise or suggestions as to what else this could be would be greatly appreciated.
     
  2. Ron B

    Ron B Paragon of Plants 10 Years

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    21% is pretty high, maybe it was more sensitive than the other trees. Or maybe it wasn't the fertilizer. Really no way to know, that I can think of - nobody here has even visited the site and even if that was done now it is well after the fact.

    In future get a soil test done first, to see what the nutrient situation in your particular soil may be. And if fertilization appears to be indicated use granular fertilizer spread over the surface of the mulch instead of having a solution injected.
     

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