Re: Borer
- To: i*@Rt66.com
- Subject: Re: Borer
- From: C*@aol.com
- Date: Sat, 20 Apr 1996 08:29:14 -0400
In a message dated 96-04-20 07:44:08 EDT, you write:
>One more correction to the above statements here, The borer does not travel
>upwards in the plant.
>It enters the leaves, usually when they are short and eats down,as the
>leaves grow up. As it eats down the inner tender leaves towards its goal,
>the rhizome, it may damage a bloomstalk in its developmental state
>down in the leaf fan. Thus you may see this damage later after the
>stalk has emerged.
>
>
This may be true for bearded irises, but with beardless irises I must
question this. Have you ever found a borer in a Siberian, Japanese or
versicolor leaf? I have twice discovered borers in Japanese bloom stalks,
and once in the bloom stalk of Iris pseudacorus. But I have NEVER found a
borer in a leaf of a bearded iris. Usually if you find a borer in a bearded
iris it will already be huge and in the rhizome. I would be interested in any
one else's experience with this. If you grow bearded and beardless irises,
the Louisianas and spurias are likely to be the irises of preference...at
least that has been my experience. Siberians and Japanese seldom get
them...but it does happen. Among the bearded, I have never had a borer in a
dwarf or an MTB. Clarence Mahan in VA who has sprayed with Cygon 2E this
year again.
