Re: 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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