..can we see a photo of your Margaret Merill...? I've never heard of this rose growing like that... are you sure it hasn't been wrongly labelled? how long have you had it now? and do you think a sucker might have taken over this bush...?
..questions...but there's something not right there...
I have 21 DAs roses and it seams that it is the climbers that suffer the most from black spot, but as Lizzie27 says, it is a bad year for black spot. Don't know whether it is due to our hot spell or not. It does not appear to have affected the flowering though.
You appear to have done all the right things, maybe you should inform DA about this and see what he says.
According to Stuart Pocock of Pocock's Roses all roses will succumb to diseases eventually, say 12-15 years as diseases mutate and resistance drops to the changing pathogen. It's a shame but that means you may have to forgo your favourite rose and replace it with a newer variety..
Taking a step sideways. In the autumn, at the end of Aug-Sept when the new catalogue is out .it usually has an offer in it e.g. freepostage or buy2 get one free.. Of course they may not have offers this year but if you are thinking of buying it is worth sending for a catalogue in a few weeks time. It has super photographs in too!
Should have said I was writing about David Austin Catalogue.
Another of his is Graham Thomas , a beautiful golden yellow, named for the great Rosarian It makes a wonderful show I have grown it without problems for many years
It's curious how some, but not all, species roses seem unshakeably healthy. I grow R. rugosa, R. glauca, R. rubiginosa (I think - sweet briar) and R. moyesii, all of which are entirely free of black spot, rust and mildew. But R. canina (wild dog rose), on the bank behind my house, has just dropped most of its leaves due to black spot. And of course my two "old" roses - R. damascena 'Versicolor' (the Yorks & Lancs rose - we live on the border) and R. 'Maiden's Blush' - are riddled with disease. Presumably it must be really difficult to "breed in" disease resistance by crossing with species roses...
Since 2019 I've lived in east Clare, in the west of Ireland.
My David Austin climber "The Pilgrim" has never had blackspot at all. A few years ago my climbing Paul's Scarlet was very ill with mildew and black spot. I did what Dave Morgan has said, sprayed and fed and watered it well and it has made a complete recovery. So I would never throw away a rose. I love roses.
Dordogne and Norfolk. Clay in Dordogne, sandy in Norfolk.
I agree with Busy-Lizzie's comments completely, I too love roses and would never throw one away, At the end of the seaason our garden centere reduces any rose bushes still in stock to clear for the season------- I need to keep well clear!!!!
Posts
..can we see a photo of your Margaret Merill...? I've never heard of this rose growing like that... are you sure it hasn't been wrongly labelled? how long have you had it now? and do you think a sucker might have taken over this bush...?
..questions...but there's something not right there...
I have 21 DAs roses and it seams that it is the climbers that suffer the most from black spot, but as Lizzie27 says, it is a bad year for black spot. Don't know whether it is due to our hot spell or not. It does not appear to have affected the flowering though.
You appear to have done all the right things, maybe you should inform DA about this and see what he says.
To be honest I'm stumped.
According to Stuart Pocock of Pocock's Roses all roses will succumb to diseases eventually, say 12-15 years as diseases mutate and resistance drops to the changing pathogen. It's a shame but that means you may have to forgo your favourite rose and replace it with a newer variety.
.
Taking a step sideways. In the autumn, at the end of Aug-Sept when the new catalogue is out .it usually has an offer in it e.g. freepostage or buy2 get one free.. Of course they may not have offers this year but if you are thinking of buying it is worth sending for a catalogue in a few weeks time. It has super photographs in too!
Should have said I was writing about David Austin Catalogue.
Another of his is Graham Thomas , a beautiful golden yellow, named for the great Rosarian It makes a wonderful show I have grown it without problems for many years
It's curious how some, but not all, species roses seem unshakeably healthy. I grow R. rugosa, R. glauca, R. rubiginosa (I think - sweet briar) and R. moyesii, all of which are entirely free of black spot, rust and mildew. But R. canina (wild dog rose), on the bank behind my house, has just dropped most of its leaves due to black spot. And of course my two "old" roses - R. damascena 'Versicolor' (the Yorks & Lancs rose - we live on the border) and R. 'Maiden's Blush' - are riddled with disease. Presumably it must be really difficult to "breed in" disease resistance by crossing with species roses...
Saw a little stunner at the New Forest show, Pococks again... Super Trouper... smallish, tangerine... wow
Hi Salino, I'll try to take photos later today, weather and visitors permitting.
My David Austin climber "The Pilgrim" has never had blackspot at all. A few years ago my climbing Paul's Scarlet was very ill with mildew and black spot. I did what Dave Morgan has said, sprayed and fed and watered it well and it has made a complete recovery. So I would never throw away a rose. I love roses.
I agree with Busy-Lizzie's comments completely, I too love roses and would never throw one away, At the end of the seaason our garden centere reduces any rose bushes still in stock to clear for the season------- I need to keep well clear!!!!