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mountain ash problem

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Old 1st October 2008, 10:41 AM   #1
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Default mountain ash problem

I have about a 15 year old mountain ash tree in my back yard. It did well all summer then suddenly the leaves started curling and small branches falling off. What is my problem
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Old 1st October 2008, 12:41 PM   #2
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Default Re: mountain ash problem

Hi Donna,

Some pictures would help first.

Also, there are a number of species that get reffered to by the common name of mountain ash around the world.

Us knowing which one will help.

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Old 2nd October 2008, 11:18 AM   #3
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Default Re: mountain ash problem

Donna, if its european mtn-ash (Sorbus aucuparia), this species suffers in the excessive summer heat. Did you have a hot summer in Bend OR this year?
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Old 2nd October 2008, 11:51 AM   #4
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Default Re: mountain ash problem

Mountain ash (not a true ash) are susceptible to bacterial fireblight.
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Old 3rd October 2008, 03:25 AM   #5
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Default Re: mountain ash problem

Mountain ash (Sorbus americana) is also susceptible to "ash anthracnose" (Gnomoniella fraxini).

Around here, it drops its leaves as early as mid July in drought years.
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Old 3rd October 2008, 01:22 PM   #6
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Default Re: mountain ash problem

all these possibilities and no pics.
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