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Re: Leaf spot, Gene, Culture, Location....

  • To: Multiple recipients of list <iris-l@rt66.com>
  • Subject: Re: Leaf spot, Gene, Culture, Location....
  • From: z88keys@mindspring.com (L.Zurbrigg)
  • Date: Tue, 10 Feb 1998 19:02:38 -0700 (MST)

>L.Zurbrigg wrote:
>> Therefore introductions from such
>> locations , esp. in California, seldom would have a chance to show if > they
>> are resistant to leaf spot. Only when they come East, and have to live
>> through hot and sometimes very wet weather, do they get the chance to
>> show the resistance to leaf spot that is desirable. As you state, soil
>> conditions also play a part, as does culture. But the bearded irises > >
>> need an upgrading in regard to producing good summer foliage here in
>> the Eastern United States.  Lloyd Zurbrigg in Durham NC USA
>I beg to disagree with you LLoyd.  It is true that our summers and early
>fall are dry and free from leafspot, however we (California) get our
>leafspot in our rainy winter.  Our temperatures rarely fall below
>freezing and leafspot will be active at this time.  I usually spray my
>iris twice a  month in the winter, from October to March.  If not
>massive outbreaks will occur.  And this can happen to any garden in
>California whether they admit it or not.
>Believe me, WE can tell if an iris is resistant to leafspot or not.
>Rick Tasco
>Superstition Iris Gardens
>Central California
>Zone 8
Dear Rick:  I take your word. But why then are hybridizers sending out
introductions that have such horrible foliage. KILT LILT comes to mind,and
yet it won the Dykes Medal!

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