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Re: CULT: Best Spray for Late Fungal Spot

  • Subject: Re: CULT: Best Spray for Late Fungal Spot
  • From: "J. Griffin Crump" <jgcrump@cox.net>
  • Date: Mon, 1 Jun 2009 13:46:09 -0400

Anner  --  I recommend Ortho's "Garden Disease Control", which has replaced 
Daconil.  This spring, just when the TBs' fans were hitting full height and 
bloomstalks were up  --  some showing color  --  leaf spot appeared 
seemingly overnight throughout several beds where it usually does not appear 
except for a variety here and there.  And it was really bad.  I was afraid 
that application was too late and was concerned that the beds would look 
really bad for the bloom season.   Instead, the Garden Disease Control 
stopped it in its tracks.  By the time bloom season and visitors arrived, 
the beds looked fine, except for "the usual suspects"  that are always 
susceptible.   If one looked closely, the old spots, of course, were still 
there, but the general appearance of the foliage was healthy.  Here's a 
photo of one of the affected beds today  --  we're just weeding and removing 
the spent stalks.   --  Griff

Griffin's Den
Zone 7 along the tidal Potomac near Mount Vernon, in Virginia

----- Original Message ----- 
From: <ChatOWhitehall@aol.com>
To: <iris@hort.net>
Sent: Monday, June 01, 2009 10:02 AM
Subject: [iris] CULT: Best Spray for Late Fungal Spot

> Greetings.
> Are there any chemical sprays labeled for Iris which appear to be
> effective against fungal leaf spot after it has manifested and had some 
> weeks to
> develop? Obviuosly the spots are not going to go away, but is there 
> anything
> which appears to arrest them and retard new outbreaks?
> Is all chemical treatment of fungal leaf spot preventive in nature?
> Is there any soil treatment which will help beat back spot other than
> solarizing?
> What do you personally do if you get a bad spot outbreak? Bloom is  past,
> the leaves look grody to the max, and there must be spores aplenty. Do you
> spray? Do you cut everything back to the ground? Prevention is better than
> cure,  sure. but you did not prevent well enough, so, what now?
> Thank you.
> Cordially,
> Anner Whitehead
> Richmond VA USA
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[demime 1.01d removed an attachment of type image/jpeg which had a name of treated bed 09 copy.jpg]

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