What is ailing this rose?

This is a rose I grew from seed three years ago. This spring it was doing really well, a healthy plant with promise. I sprayed it once with SB Plant Invigorator which is an organic product for greenfly. The leaves then looked dried out and turned brown, but the plant was still alive, and has recently flowered, and had produced some fresh leaves that looked healthy.

When I looked at it today, the old, dried-out leaves looked even more crinkly, and even the new leaves are turning brown. There looks to be a white powdery covering on some leaves, which might or might not be mildew.

Last year I used the SB Plant Invigorator on some Feverfew, whose stalks turned dry and brown but the Feverfew still flowered normally, but at the end of the season the whole plants died. The greenfly showed no interest in the dried out stalked plant. I just assumed that I had over-used the SB Plant Invigorator, but this year on this rose I only used it once and lightly.

After the effect on this rose I threw the SB Plant Invigorator out and will never use it again.

I have nurtured this rose for three years from seed, and was overjoyed when it flowered, but it looks as though it will now wither and die. The leaves feel paper-dry. The first photograph is of a new leaf, which today looks as though it is now withering.

 

I found a photograph I had taken of this rose from 18th January 2022. I notice that even the thorns look fresh on this photograph, whereas today they look brown and dried out.

 

You might wish to seek condolence, apology or compensation from the distributor?
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Help/Advice Centre

 

I am just describing my experience honestly. Yes I am very upset, and I do think it was the SB Plant Invigorator. The value to me of that plant is very personal. I haven't read anywhere of anyone else having SB Plant Invigorator killing their plant, some people just say it didn't work for them, and after my personal experience with it I am saying what happened with it to me. It dried out my plants, like they didn't have any sap left, and this wasn't my fault this time as I was very careful not to over-use it, and it was a moment's mistake to use it at all.

I was hoping there would be some remedy for this rose. If I can save it. Nothing the manufacturer of SB Plant Invigorator could say could possibly bring it back.

 

I trust you diluted it. It has to be diluted 100:1.

 

Is this the company that manufactures it? The name doesn't seem to be the same, and whenever I have googled this manufacturer there is no customer service contact at all.

 

Thanks, I had a quick read through that, but it doesn't seem to have any customer service contact to ask them how to treat a plant that has reacted badly to their product.

 

It does mention that it can burn the edges of leaves.
Trouble with these kind of things is there is usually a "get out" on their part because they have no control over how you use it.

To be honest the rose doesn't look like its going to die.

 

Not sure about manufacture; but are a distributor to agriculture. The contact details at the foot of the leaflet submitted by Wiseowl, of Fargro ltd , are a major supplier to the horticultural trade and, in my experience, likely to be able to furnish manufacturers contacts, if different.

 

@groundbeetle Sorry to hear about your rose, SB Plant Invigorator can be bought from a whole range of suppliers as either a concentrate or a ready to use spray. The concentrate must be diluted as said in an earlier post, if not it would cause the plant dry up as you describe for the feverfew. If you used the concentrate without dilution then I doubt much can be done for the rose. You could just leave well alone for a year and see if it revives at all.
SB Plant Invigorator is made by Homepage - SB Plant Invigorator Retail

 

Thanks for this information. It was diluted.

That is the first place I have ever found to be able to contact the manufacturers, thanks.

And thanks yes I suppose all I can do is leave the rose alone for a year and see if it recovers, but the fresh young leaf turning brown within a few days of opening doesn't bode well. The plant does have a lot of the beginnings of fresh shoots on it, but I am not holding my breath.

 

I don't know whether @wiseowl or others here would agree but I would be inclined to remove all the leaves and flowers and prune the main stem down by half. This would give it a temporary dormancy as if in winter and a chance to recover. I would also replace the top inch or two of soil because the SB will be in that too.