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RE: Cult: Spathe borers

Jim Hedgecock, Comanche Acres, mentioned he has
had a problem but I can't remember what he does to
help prevent that.
Char, New Berlin WI

-----Original Message-----
From: owner-iris@hort.net
[mailto:owner-iris@hort.net] On Behalf Of
Sent: Wednesday, June 22, 2005 12:53 AM
To: iris@hort.net
Subject: Re: [iris] Cult: Spathe borers

In a message dated 6/11/05 6:31:02 PM Eastern
Daylight Time, 
chrisdarlington@videotron.ca writes:

> Does anybody have problems with moth larvas that
bore through the 
> spathes
> and demolish the entire bloom ?  I'm having
great difficulty controling these 
> things and wonder what others do to put an end
to the damage caused by these 
> pests.  These little white borers are about 1/4
long and have two little 
> black specks for eyes.   I treated lightly with
Cygon 2E about three weeks ago 
> but it was was either ineffective or not timely.

Hi Chris,

We had an unusually high amount of this this year
even though we had sprayed 
with Merit.  I don't know what conditions favored
this problem.  I assume they 
were regular iris borers that did the damage.

Dorothy Willott
Northern Ohio, Zones 5 & 6

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