What sprays are you using?

Bayer Disease Control and I cannot for the life of me remember the other one.....

Now, also, don't get me wrong. I have had SOME blackspot throughout my garden even with spraying, but this ONE rose seems to be affected ten times worse than any others. the roses on the three sides of it are basically clear too, btw.....

I have also been having the same problem with my Vavoom. For whatever reasons it is having more than its share of blackspot this year. I suspect it may be related to being hard hit by the changeable winter-spring transition period being so up and down that its disease resistance took a hit. I have noticed that if we have a gradual winter-spring transition, everything comes out good. If it is a deranged temperature roller coaster, then flower quality, disease resistance, and reblooming all take a hit on some level.

I think the Bayer spray you're using, tebuconazole, is the best single treatment for blackspot that's available. Tebuconazole kills blackspot spores as they start to germinate on the leaves and it also kills established blackspot infections. If you spray this stuff once a week and it's still not enough, you might try spraying fungicidal sulfur on the plant and on the surrounding ground to kill the spores directly, something tebuconazole appears not to do.

This plant, if I were to take of the damaged leaves would be bald, but there is new growth swelling all along the canes and like I said it is the ONLY one doing it. It is potted, like all of mine are at work, so I can easily treat the area around it. Glad to know however that I am not the only one with an issue on this rose. It is one of my favorite roses colorwise, but the doggone spots are killing me. Nothing looks great right now due to heat except my Belinda's Dream which is planted along my building, and a few under some trees at the front (like Easy Does it and Heaven on Earth). Even my knockouts are feeling the heat pressure. But nothing else is spotting like this one.....might have to move it next year and see if that makes a difference.

I have tried this rose several times, adore the color next to Ebb Tide or any red rose - but it is very disease prone and I dont have it anymore. May get it again.....but its like Intrigue - love the color, hate the disease.
Judith

I may just move it to my house where the foliage doesn't matter so much. At the grooming shop, I don't like the roses to look uncared for. And the rest look pretty good except for heat stress. NOTHING can stp that I dont th ink except an air conditioner or fall hurrying up. ANother week forcast of temps in high 90's indexes in the 115 area......

Okay.I googled the Vavoom rose as mine is a mess and I am glad I am not the only one who has had this issue with Vavoom. It gets the shovel.

I like Vavoom and gave it a prominent place in my garden. Although it isn't totally disease free, my rose still seems healthy and happy to me.

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Just wondering if you started spraying the Bayer Disease control on the Vavoom rose right after it leafed out in early Spring or when you first started seeing the spots?

Different issue with Vavoom. Leaves dry about halfway in from the tip. Growing for resale and it doesn’t seem to matter if greenhouse has been cool, hot. humid or dry. This is the only variety that does this and because of the beautiful colour we keep trying to grow it.