Rose buds browning - Ask Extension
I have some climbing roses that have been reliably trouble free for many years. We have just noticed that after the initial blooms opened, many buds ...
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Rose buds browning #838123
Asked June 28, 2023, 4:12 PM EDT
I have some climbing roses that have been reliably trouble free for many years. We have just noticed that after the initial blooms opened, many buds are stunted and have brown edges on the petals. The foliage looks quite good. I wonder if it isn’t botrytis blight? The last photo is a healthy bud on same plant but inside the bush a bit.
Clackamas County Oregon
Expert Response
Hi,
There are a couple of possibilities of what is causing the roses to appear like that. It could be rose botrytis blight, but I would expect to see spotting on the petals and potentially damage to stems. Here's more detailed information on Rose Diseases from Clemson Cooperative Extension. The other possibility is damage caused by thrips. Here's more information from North Carolina State Extension, "Thrips: Biology and Rose Pests".
Each of those publications tell you how to diagnose the problem and what to do about it.
Hope your rose soon looks amazing again.
There are a couple of possibilities of what is causing the roses to appear like that. It could be rose botrytis blight, but I would expect to see spotting on the petals and potentially damage to stems. Here's more detailed information on Rose Diseases from Clemson Cooperative Extension. The other possibility is damage caused by thrips. Here's more information from North Carolina State Extension, "Thrips: Biology and Rose Pests".
Each of those publications tell you how to diagnose the problem and what to do about it.
Hope your rose soon looks amazing again.
