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Old 22-07-2004, 12:08 AM
Sunflower
 
Posts: n/a
Default 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.