For blackspot, the only thing that works for me is Bayer Advanced Garden Disease Control for Roses, Flowers, and Bushes. Make sure you get that exact name (Bayer has many products--a number I do not recommend). Follow directions.

You will also need a plastic container with a sprayer attached--quite cheap--maybe $20.

I can get this Bayer product at Lowes, but not at Walmart or Home Depot or such places. It can be ordered online also.

Spray fairly early in the morning, before it gets real hot--and not when it looks like it might rain.

This product is effective, but if you have a really bad case of BS, you may have to spray again in about 10 days.

Kate

Thank you! Any thoughts on milk?

Also, do you suggest I spray all my roses or watch and wait.

I would prune off the yellow deadish cane and we'll all feel better. I would chalk some of this up to newly planted rose adjusting.

I've been in a similar boat with a standard Intrigue I purchased at Lowes early this spring. We've added about 18 other roses, own root, to the yard since then. Not one of these have the black spot problems Intrigue has.

I started applying an approximately weekly rotation of sprays to it over the last month to 6 weeks. Week 1 Neem Oil, Week 2 Bayer spray, Week 3 Milk/water/baking soda mix, and Week 4 a copper fungicide. At first I just used Neem oil. That worked for a bit, and then after a big flush it lost every leaf. :cry:

This rotation of sprays seems to be working better, but I'm not certain. It has at least had another flush and not lost all its leaves?

I'm a newbie too, no expert. I was grasping at straws. Then I read somewhere that a spraying rotation could be helpful to break up the fungus? Again, dunno but I figured it was worth a shot.

Good luck!

btw Your rose is beautiful! I love that unique color. I wish I could get my flower snob hubby on board with it. He likes pinks, reds and some oranges. lol He grudgingly accepted Wollerton Old Hall. I showed him a picture and he said, "Ew. You like that?? It looks like old milk." -_-

Where are you? It should have been the first thing asked.

In general, east of the Rockies blackspot pressure increases from west to east until you get to the Atlantic. If you are somewhere like Maryland, almost all roses will get blackspot. You either spray, accept roses that are far from perfect, or become very, very discriminating about what roses you grow.

Everybody develops their own way of dealing with BS. I long ago gave up on all the possibilities mentioned above. I'm serious--the only one that works well is the Bayer Disease Control and it should usually not be applied more than every 2 weeks. And I usually only apply it a couple times in the spring and fall when BS is most rampant. Middle of the summer is too hot usually for BS which does not like the higher temperatures.

I try to do as little spraying as possible--partly because I'm lazy and partly because I don't want to damage the environment. Therefore, when I get a new rose, I wait to see if or when it will develop BS. Some roses are much more resistant than others are, you will find. That way I don't have to always spray all my roses since I know those roses over there rarely get much BS, for instance.

If most of your roses do not show BS symptoms (or very little), wait on them. Just spray the ones that really need it.

Hope that helps. : )

Kate

I'm in NY

Bayer Advanced Disease Control. That is all you need to know.

(runs to shed at 10pm to see what kind of Bayer spray is even out there)

Grrr. This explains so much. I'm not using the right one. lol

Sorry, I was wrong before; what I have by Bayer is for insect control. The other fungicide I've been using week 2 is a different brand 3 in 1.

I'd so much rather use just one spray. Thanks y'all! :-)

(adds another trip to Lowes on this week's agenda)

See if Daconil is available.

Daconil isn't a systemic fungicide though.

Then use serenade which is a systemic and organic. Daconil is a contact film do me now and one can switch to serenade afterward.