borer damage in stalks
- To: s*@egroups.com
- Subject: [sibrob] borer damage in stalks
- From: A* W*
- Date: Sun, 9 Apr 2000 13:27:28 -0400 (EDT)
I had a grant this summer to spend some time surveying Iir Versicolor in
the its native habitat. I looked at a number of differnent populations
around my house in western Massachusetts and southern Vermont. Borer
injury on bloomstalks was something that was more common than Borer injury
to fans in the characteristic way that it is described in The World Of
Iris and other texts. I would assert that if anything, the borer injury
that we generally see in our gardens in Sibs and JIs and Bearded Iris is
adaptive and the more characteristic injury that occurs on the borer's
original host species is what is normal for them. That was a mouthful..
let me try again.. The borer injury in gardens characterised by notching
at the edge of the leaves and a slimy look to the fan followed by
tunneling of the borer down into the fan and then into the rhizome is not
similar at all to injury in the wild. In the wild borers, as I observed,
were common in the stalks and spathes, even eating buds. I rarely saw
them in the fans or saw the characteristic notching. I don't know if they
will eventually try to tunnel into the rhizomes, but I doubt it since the
rhizomes were frequently under water. This begs the question "What is the
life cycle of the borer in the wild?" . At first glance, it cetainly
seems differnt than in the dry garden....
Andrew Wheeler
Who got an entire nights sleep last night, at night no less, for the
first time in a week and a half...
>
> I received the following message and told the author I would post it here
> in hopes that someone might help with the ID. Though she doesn't say so in
> her e-mail, I believe the author's irises are a tall bearded variety.
> Currier McEwen does suggest that in rarer instances, iris borers will chew
> the iris stem. Have any of you had this experience?
>
> Thanks for any help.
>
> Jody Camille
> NH's northernmost county where the crocuses will bloom soon.
>
> > I would appreciate it if you could answer my questions about the problem
> > I'm having with the iris. I moved into a home that already has iris
> > plants in the garden. However, something breaks the iris stem just
> > below the blossom. The iris blooms and hangs over. The blossom is
> > intact and whole but the base of it is gone. What kind of critter is
> > doing this?
>
>
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