Re: 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
>   > >
>   >
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