Rosa multiflora returns with a vengence
anntn6b
10 years ago
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For fourteen years my part of east Tennessee has been having Rose Rosette Disease on the 'wild' rose Rosa Multiflora. The disease increased gradually until about half the multiflora between Blaine and Knoxville (about fifteen miles) had RRD. The RRD gradually sickened and then killed the multiflora.
For the past two years, we've had excellent growing conditions and this past winter we were more of a zone 7 than a zone 6.
This spring, the multiflora seeds that were wide spread by bird poop over the past twenty years are now seen as healthy multiflora plants in full bloom. There are more multiflora now than ever before.
Any hope that RRD might reduce the invasive alien species R. multiflora is totally lost.
The multiflora seeds can last twenty years in the ground before sprouting.
If you've conditions similar to east Tennessee, look for the new multiflora plants emerging. That's where the next wave of Rose Rosette Disease will be in the next three or four years.
Dang.
prairielaura
TNY78
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