Borers again (sorry to be boring)
- To: Multiple recipients of list <i*@rt66.com>
- Subject: Borers again (sorry to be boring)
- From: E* G* <e*@moose.ncia.net>
- Date: Tue, 3 Feb 1998 09:24:59 -0700 (MST)
Ian Efford wrote:
> (snip) you are right in saying that borers are very
>tolerant of cold and apparently less so of heat. Following Kay's
>comments, I believe that versicolor is a (the?) natural host of borers
>as wild specimens from around here are infected and sometimes heavily
>infected.
A few comments: I must have misread Kay Cagemi's post since I took it
to say that even though she was in a wild-growing I. versicolor area,
she *didn't* have any borers. She also mentioned that they were feral
pseudacorus populations in the vicinity. Her garden of irises remains
borer-free without spraying Cygon. Why? (that is my query, not Kay's)
I don't think it is enough to say that she has been 'lucky' (also my
comment).
I have deleted Kay's and most posts re this thread so am doing this
from memory....either Ian or Kay posed the theory that I.versicolor
*might* not be the original host plant....the versicolor range is
where we find the borer. Since I have no borers, (not yet anyway)
I challenge anyone to find more I. versicolor growing in the wild
anywhere and I have never seen a sickly-appearing one.
BTW, do not have feral pseudacorus around here - only in my garden
and two others that I have noticed.
I must revamp my 6-months of frozen gardens to a full 8-months after
counting on my fingers. :-) Zone 3a is considerably colder and inhospi-
table to many pests that are found elsewhere. Unfortunately, not the
iris bud fly ....could that be the enemy of the borer? :-)) I just
read Linda Mann's post re borers.....
Ellen
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Ellen Gallagher / e_galla@moose.ncia.net
Siberian iris robin / sibrob@ncia.net
Northern New Hampshire, USA / USDA Zone 3
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