This Forum will close on Wednesday 27 March, 2024. Please refer to the announcement on the Discussions page for further detail.
Rose Problem

Hi,
I have a climbing rose (Golden Shower) and the new buds are developing what looks like some form of mildew, it starts under the rose bud and moves down the stem all the new buds seem to be effected, what is the fungus and how do I get rid of it?
0
Posts
Looks to be powdery mildew. A pain in the proverbials but shouldn't harm the rose too much.
Options are to feed it (but not too much) to encourage strong new growth, prune affected areas off or go down a fungicidal spray route.
Last edited: 07 August 2017 20:13:14
Hi,
I am wondering why the mildew is only effecting the one rose, there is other roses around it and other plants that at the moment are not effected, or is it a case of it has to start some where.
If it's affecting one rose and not the other, it could be certain roses are more resistant than others. If this is the first time you have seen this on your roses, it could be the local conditions it is growing in. A combination of the weather and your growing area can cause mildew. Poor air circulation, plants bunched together into a tight corner or wall. Periods of heavy rain, then long dry spells.
If your roses are still young, remember to water them even if there is rain. They need consistent watering and less stress where they are too dry. Mulch around the base every springtime. Prune away any growth that look like they'll rub against other branches.
Last edited: 07 August 2017 22:33:23
I have some of that, I think the warm damp weather encourages it. I used a fungus spray on Sunday . This was on a Rambling rector rose. I have not had a chance to look at it today.
'You must have some bread with it me duck!'
Hi all,
With out doing any research are you saying that if I leave the mildew unchecked it will not kill the rose, and when conditions change it will go on its own accord?
It won't kill your rose, but it's a bit like us getting a cold, we don't perform as well.
It'll likely be with your rose for the remainder of this season, and because your rose is weak, it may let black spot get a hold too.
But it's noting to get too worried about. The spores for mildew and black spot are in the air anyway, they just get a hold when a plant is weak for whatever reason.
At the end of this season, clear all the foliage that has dropped on the soil (so the spores aren't waiting in the ground for the new leaves next year) and don't compost them.
Next year give your roses a good mulch with rotted manure/compost in early spring - this will help a lot and keep them watered if it's dry.
Billericay - Essex
Knowledge is knowing that a tomato is a fruit.
Wisdom is not putting it in a fruit salad.
Thank you for your help everyone