Re: Merit/Cygon (was CULT: Anne-Lise)

Well....maybe it is overkill. Or, you could choose to look at it
like "supplemental" insurance :).  My observations of borers the last few
years leave me wondering if we are seeing pesticide resistance in the
critters.

John Bruce
Hidden Acres Iris Gardens

----- Original Message ----- 
From: "Char Holte" <cholte@wi.rr.com>
To: <iris@hort.net>
Sent: Wednesday, August 18, 2004 9:00 AM
Subject: Re: [iris] Merit/Cygon (was CULT: Anne-Lise)


> Hi,
>
> My understanding they are both systemic.  Just different chemicals.
> Overkill perhaps?
>
> Char
> ----- Original Message ----- 
> From: "Patrick Orr" <irisdude@msn.com>
> To: <iris@hort.net>
> Sent: Tuesday, August 17, 2004 9:55 PM
> Subject: Re: [iris] Merit/Cygon (was CULT: Anne-Lise)
>
>
> > why couldn't you use both?
> >
> >   ----- Original Message -----
> >   From: Christopher Darlington<c*@sympatico.ca>
> >   To: iris@hort.net<i*@hort.net>
> >   Sent: Tuesday, August 17, 2004 6:29 PM
> >   Subject: Re: [iris] Merit/Cygon (was CULT: Anne-Lise)
> >
> >
> >   John,
> >
> >   Thanks you kindly for your response.  Seems to me that Cygon is the
> >   route for me to follow, expecially for my first  attempts to deal with
> >   these pests.
> >
> >   I'd also love to see it effective against the smaller borers that eat
> >   into the spathes and destroy the flower before it has a chance to
open.
> >
> >   Regards
> >   Chris
> >   Lafontaine, Quebec, 4b
> >
> >   John Bruce wrote:
> >   >
> >   > Chris-
> >   >
> >   > I will field a reply to this from the heart of borer country.
> >   >
> >   > Cygon is systemic, absorbed into the plant tissue. It stays there
for
> > about
> >   > two weeks. I assume the plant breaks it down and it needs to be
> > reapplied.
> >   > Merit is longer lasting, but in my opinion is not as effective as
> Cygon.
> > We
> >   > have
> >   > tried Merit (imidacloprid) for two seasons. We have applied as
> directed.
> > In
> >   > the first year is was not as effective, so we doubled the
recommended
> > dosage
> >   > and still had borers. Since Merit is supposed to last for 6 months,
we
> >   > applied
> >   > it well before temps were warm enough to trigger fan growth or borer
> egg
> >   > hatching. Areas treated with Cygon had far fewer borers than those
> > treated
> >   > with Merit. I still hear much praise for Merit, and it is safer than
> > Cygon,
> >   > but the
> >   > jury in my court remains in deliberation.
> >   >
> >   > John Bruce
> >   > Hidden Acres Iris Gardens
> >   >
> >   > ----- Original Message -----
> >   > From: "Christopher Darlington"
> > <chris.darlington@sympatico.ca<c*@sympatico.ca>>
> >   > To: <iris@hort.net<i*@hort.net>>
> >   > Sent: Tuesday, August 17, 2004 8:38 PM
> >   > Subject: Re: [iris] Merit/Cygon (was CULT: Anne-Lise)
> >   >
> >   > > Hi Char,
> >   > >
> >   > > Thanks for the information.  I wonder when Merit will become
> available
> >   > > up here ?
> >   > >
> >   > > BTW, does anybody know if Cygon 2E works the way Merit does ?  I
> read
> >   > > that Merit gets absorbed through the plants root system and makes
> the
> >   > > plant toxic to eat.  Does Cygon 2E work this way as well or is it
> used
> >   > > to treat the exterior of the fans and ground only ?  I have found
> that
> >   > > anything that I spray fans with, it never really appears to stick.
> >   > > Should I add soap to the solution ?
> >   > >
> >   > > Chris
> >   > >
> >   >
> > ---------------------------------------------------------------------
> >   > > To sign-off this list, send email to
> > majordomo@hort.net<m*@hort.net> with the
> >   > > message text UNSUBSCRIBE IRIS
> >   >
> >
  > ---------------------------------------------------------------------
> >   > To sign-off this list, send email to
> > majordomo@hort.net<m*@hort.net> with the
> >   > message text UNSUBSCRIBE IRIS
> >
> >   ---------------------------------------------------------------------
> >   To sign-off this list, send email to
> > majordomo@hort.net<m*@hort.net> with the
> >   message text UNSUBSCRIBE IRIS
> >
> > ---------------------------------------------------------------------
> > To sign-off this list, send email to majordomo@hort.net with the
> > message text UNSUBSCRIBE IRIS
>
> ---------------------------------------------------------------------
> To sign-off this list, send email to majordomo@hort.net with the
> message text UNSUBSCRIBE IRIS

---------------------------------------------------------------------
To sign-off this list, send email to majordomo@hort.net with the
message text UNSUBSCRIBE IRIS
Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index