rhododendron care - Knowledgebase Question

Monroe, No
Question by toneilliii
February 8, 2011
Something is killing two to three branches on each of my 9 rhododendron that are 11 years old. We lost two more of them last year.
Should I cut out the dead branches?
I put mole/vole granuals down in October.
Thank you, Eleanor


Image
Answer from NGA
February 8, 2011

0

Yes, I'd prune out the dead branches. Rhododendrons can develop root rot, which happens when the soil stops draining well. I can't tell if that's the problem with your rhodies, but if the leaves suddenly wilt before the branches die, it certainly could be the problem. There's no way to tell without digging up the affected plant and having the root system inspected by your local cooperative extension office. If it is root rot, you can sometimes stop the problem by drenching the soil with a fungicide containing mefenoxam (e.g. Subdue MAXX). Best wishes with your rhododendrons!

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