Re: Iris Borers
- To: Multiple recipients of list <firstname.lastname@example.org>
- Subject: Re: Iris Borers
- From: "J. Griffin Crump" <email@example.com>
- Date: Sun, 1 Feb 1998 17:58:20 -0700 (MST)
Dorothy Fingerhood wrote:
> Griff and all--I believe this IS the case. (More than 1 hatching per
> season, that is.) WOI recommends spraying beginning when the foliage is 6"
> high, then at weekly intervals until the end of June! Here, we have
> usually had good control with 2 sprayings, but recently a commercial grower
> in the area found reports of up to 3 separate hatches in this climate, and
> attributed some of the damage they suffered to this "third hatch," which
> was unwelcome news for all of us.
Disturbing news, if true, Dorothy. I don't like to spray Cygon more
than once per season. I remember Charlie Nearpass saying once that all
of his seedlings were "sick" for a while, having just been sprayed with
Cygon. For that reason, I don't continue spraying into bloom season.
Griff Crump, along the tidal Potomac near Mount Vernon, VA