Canes blacken and die
 

Planted 2 Hybrid Teas and a climber this spring. The HT grew into canes,
flowered once and then wilted to death. The leaves wilted first, slowly, as
though they were not getting water. The canes then turned black. I read
the Post by Josephine about the wilting buds and the Rose Midge. According
to sources on the internet, the Midge causes leaf damage, not damage to the
canes.


What would cause the un-damaged canes to blacken back to the bud union and
die? Rose canker might be likely but I have no experience with it:
http://www.sactorose.org/ipm/83canker.htm


the climber had the same thing on several canes but has survived. BTW I
have Black Walnut trees on my lot and they are known to be harmful to many
ornamentals, but Rose is not one of the species mentioned.

Any comments?

KB
Missouri, USA

p.s.. This is my first post here!
--

Canes blacken and die
 

"K. B." wrote in message
...
Planted 2 Hybrid Teas and a climber this spring. The HT
grew into canes,
flowered once and then wilted to death. The leaves wilted
first, slowly, as
though they were not getting water. The canes then turned
black. I read
the Post by Josephine about the wilting buds and the Rose
Midge. According
to sources on the internet, the Midge causes leaf damage,
not damage to the
canes.


What would cause the un-damaged canes to blacken back to
the bud union and
die? Rose canker might be likely but I have no experience
with it:
http://www.sactorose.org/ipm/83canker.htm

Without knowing more about your situation,
it's hard to diagnose. Sometimes roses just
die. They don't adjust to being planted
because they're weak to begin with. Or there's
something in the soil that's not working for them.
I've replaced a bunch of roses over the 6 years
I've been actively growing them. Some thrive
even if I ignore them, others die quickly no
matter how much I coddle them.

the climber had the same thing on several canes but has
survived. BTW I
have Black Walnut trees on my lot and they are known to be
harmful to many
ornamentals, but Rose is not one of the species mentioned.

Any comments?

I did a google search on black walnut and roses
and found a discussion on GardenWeb:
http://www.gardenweb.com/
Someone mentioned Black Walnut makes the
soil more alkaline (I have no idea if that's true or
not) and of course roses prefer an acidic soil, so
maybe you should do a soil test before planting
more roses in that area.

KB
Missouri, USA

p.s.. This is my first post here!

Welcome! Growing roses is a frustrating and
rewarding experience, IMO. I've gotten a lot
of help from the people here. But during the
summer many people are so involved with
their gardens they don't get online much. So
be patient. If you don't get an answer right
away, try again. :)

Gail
near San Antonio TX Zone 8

Canes blacken and die
 

"K. B." wrote in message
...
Planted 2 Hybrid Teas and a climber this spring. The HT grew into canes,
flowered once and then wilted to death. The leaves wilted first, slowly,
as
though they were not getting water. The canes then turned black. I read
the Post by Josephine about the wilting buds and the Rose Midge.
According
to sources on the internet, the Midge causes leaf damage, not damage to
the
canes.


What would cause the un-damaged canes to blacken back to the bud union and
die? Rose canker might be likely but I have no experience with it:
http://www.sactorose.org/ipm/83canker.htm


the climber had the same thing on several canes but has survived. BTW I
have Black Walnut trees on my lot and they are known to be harmful to many
ornamentals, but Rose is not one of the species mentioned.

Any comments?

KB
Missouri, USA

p.s.. This is my first post here!

Which roses did you buy, and where did you buy them from, and in what
condition were they when you bought them? What was your soil preparation
and how is it's drainange and pH? What have you sprayed them with and how
often have you watered with how much? What has your fertilization program
been? Did you check for vole damage to the roots?

A lot more information is needed to even have a preliminary diagnosis.

Canes blacken and die
 

"Sunflower" wrote in message
...

"K. B." wrote in message
...
Planted 2 Hybrid Teas and a climber this spring. The HT grew into
canes,
flowered once and then wilted to death. The leaves wilted first,
slowly,
as
though they were not getting water. The canes then turned black. I
read
the Post by Josephine about the wilting buds and the Rose Midge.
According
to sources on the internet, the Midge causes leaf damage, not damage to
the
canes.


What would cause the un-damaged canes to blacken back to the bud union
and
die? Rose canker might be likely but I have no experience with it:
http://www.sactorose.org/ipm/83canker.htm


the climber had the same thing on several canes but has survived. BTW I
have Black Walnut trees on my lot and they are known to be harmful to
many
ornamentals, but Rose is not one of the species mentioned.

Any comments?

KB
Missouri, USA

p.s.. This is my first post here!

Which roses did you buy, and where did you buy them from, and in what
condition were they when you bought them? What was your soil
preparation
and how is it's drainange and pH? What have you sprayed them with and how
often have you watered with how much? What has your fertilization program
been? Did you check for vole damage to the roots?

A lot more information is needed to even have a preliminary diagnosis.


Thank you for taking the time to reply.

KB

Canes blacken and die
 

"K. B." wrote in message
...
Planted 2 Hybrid Teas and a climber this spring. The HT grew into canes,
flowered once and then wilted to death. The leaves wilted first, slowly,
as
though they were not getting water. The canes then turned black. I read
the Post by Josephine about the wilting buds and the Rose Midge.
According
to sources on the internet, the Midge causes leaf damage, not damage to
the
canes.


What would cause the un-damaged canes to blacken back to the bud union and
die? Rose canker might be likely but I have no experience with it:
http://www.sactorose.org/ipm/83canker.htm


the climber had the same thing on several canes but has survived. BTW I
have Black Walnut trees on my lot and they are known to be harmful to many
ornamentals, but Rose is not one of the species mentioned.

Any comments?

KB
Missouri, USA

p.s.. This is my first post here!

Which roses did you buy, and where did you buy them from, and in what
condition were they when you bought them? What was your soil preparation
and how is it's drainange and pH? What have you sprayed them with and how
often have you watered with how much? What has your fertilization program
been? Did you check for vole damage to the roots?

A lot more information is needed to even have a preliminary diagnosis.

Canes blacken and die
 

"K. B." wrote in message
...
Planted 2 Hybrid Teas and a climber this spring. The HT
grew into canes,
flowered once and then wilted to death. The leaves wilted
first, slowly, as
though they were not getting water. The canes then turned
black. I read
the Post by Josephine about the wilting buds and the Rose
Midge. According
to sources on the internet, the Midge causes leaf damage,
not damage to the
canes.


What would cause the un-damaged canes to blacken back to
the bud union and
die? Rose canker might be likely but I have no experience
with it:
http://www.sactorose.org/ipm/83canker.htm

Without knowing more about your situation,
it's hard to diagnose. Sometimes roses just
die. They don't adjust to being planted
because they're weak to begin with. Or there's
something in the soil that's not working for them.
I've replaced a bunch of roses over the 6 years
I've been actively growing them. Some thrive
even if I ignore them, others die quickly no
matter how much I coddle them.

the climber had the same thing on several canes but has
survived. BTW I
have Black Walnut trees on my lot and they are known to be
harmful to many
ornamentals, but Rose is not one of the species mentioned.

Any comments?

I did a google search on black walnut and roses
and found a discussion on GardenWeb:
http://www.gardenweb.com/
Someone mentioned Black Walnut makes the
soil more alkaline (I have no idea if that's true or
not) and of course roses prefer an acidic soil, so
maybe you should do a soil test before planting
more roses in that area.

KB
Missouri, USA

p.s.. This is my first post here!

Welcome! Growing roses is a frustrating and
rewarding experience, IMO. I've gotten a lot
of help from the people here. But during the
summer many people are so involved with
their gardens they don't get online much. So
be patient. If you don't get an answer right
away, try again. :)

Gail
near San Antonio TX Zone 8