On Sun, 11 May 2003 07:03:15 GMT, torgo
wrote:
The geometry of the photo suggests Cass and Radika are correct (as
always - no surprise there at all) and that damage from rain or other
liquid is the prime suspect.
Do you know what botrytis looks like, torgo?
In short, except for the brown spots on the open bloom, this appears
to be an exceptionally healthy plant.
This is what botrytis looks like.
Before you inflict Agent Orange upon your garden, try a little mental
origami. Pretend you're watching time-lapse photography in reverse so
that the rose bloom closes back up into the original bud. (ie -
imagine it "un-blooming".) Seems to me that virtually all of the bad
spots would end up overlapped in only one or two places in the closed
bud.
In other words, when the bloom was in the just-about-to-pop stage,
just like the buds in the photo on the left and right of the bloom, a
drop or two of liquid got into the "cracks" in the vulnerable bud,
soaking through many layers of petals and staining, burning, rotting,
or otherwise damaging them. Then when the bud opened, you got the
paper snowflake effect, with the bad spots scattered all around the
bloom as the stained petals separated.
Quite creative, and a nicely turned phrase i.e. "mental origami."
However--roses LOVE water, on their foliage, blooms, canes, roots. I
wash mine down twice a week, buds and all. I SPRAY every ten days with
Orthenex, and I have never, ever seen what this poster's photos
displays except in the few instances when I have had botrytis on my
roses. If your theory were plausible, all my roses would look like
that.
The rest of the plant is quite impressive, and I'd be terrified to use
chemical agents on such magnificent foliage. The side effects would
likely outweigh the benefits.
This is complete nonsense. My foliage is more beautiful than it ever
was before I protected it from chewing and sucking insects and fungal
disease with Orthenex.
The plant itself seems to be in no state of peril whatsoever. Unless
the photo is misleading or this plant is not indicative of the rest of
your roses, I'd just wait and watch the next wave of blooms and see if
they do any better.
While "wait and see" isn't bad advice, it is no fun to have plants
that "although they are in no state of peril" produce roses that rot
on the stems before opening.
If anyone knows of anything that DOES cause a rose to rot on the stem
before it opens, do let us know. This is precisely what the poster
said is happening.
On Sat, 10 May 2003 22:03:36 GMT, "Me"
wrote:
My rose plants have not been producing good roses this year. It looks like
they are brownish on the outside.
Before they bloom, while they bloom, they look 20% dead.
One store sold me generic disease control, one store said it looks fine, and
another store said although he couldn't find any thrips, it had all the
symptoms.
I'd tend to believe the last person, because he sold me on a product his
store didn't carry and sent me to another store. He had a pebble based
systemic solution that would take long to take effect and suggest I go to
another
store and buy the liquid Ortho systemic.
I have a picture of one of the roses at
http://home.earthlink.net/~cenews/garden/
I can email other pictures if anyone would like to take a closer look. I had
a hard time getting the first on the web site.
I have eight different rose plants in my front yard and all have hte same
symptons. I live in the San Fernando Valley Foothills in L.A.
Thanks.