If you use a systemic spray then it will not be washed off as you say because it is already absorbored into the plant.

Which spray's are systemic?

Bayer Advanced Desease Control, Bonide Infuse, Banner Max and others.

Here's an informative article I just came across, good basics:
http://www.rosemagazine.com/ar...

Thanks Sue,

I need to be reminded each year that the spraying should start very early in spring. Too late for that now, so I'll just keep up with the other stuff.

I started spraying with the first leaves this year, but may start even earlier next year. I will also spray my winter protection with fungicide next year. (I used peat in several applications. I also put inverted tomato cages, covered with muslin over some especially tender or new roses. In those, I added crumpled newspaper on top of the peat.)

I am starting to see a bit of blackspot on some roses. The worst offenders are three minis -Lavender Delight, Busy Bee and Scensational (or Pink Sensation, something like that). They were generously covered in mulch. Many had retained their leaves under the mulch, but I am not sure if these were among them. Souvenier de la Malmaison and Wildeve are looking alright so far, they were affected the worst by blackspot last year. I'll keep after it and see how they progress.

As I mentioned before, I tried using only neems oil/soap/baking soda sprays last year. I am using a stronger fungicide this year.

last year, I had a few roses w/blackspot. Mainly the roses in the front yard along my sidewalk were it's really shady in the afternoon. So, Charisma & Intrigue got hit by it, along with Dolly Parton.... uh, can't really think. I know that Oranges & Lemons had it a little, as did George Burns. I just use GreenSpot Rose Spray once or twice & it's gone. Guess I'm lucky that way.

Mini roses are notorious blackspotters not usually being very desease resistant. I am curious what zone are you in that you had to wrap your roses over winter?

Try a systemic if you want your roses to stay blackspot free. The best is Bayer Advanced Desease Control for Roses, flowers and shrubs. Its a liquid in a blue bottle. Not, that is not the same as the Bayer 3 in 1. Anothyer great one is Bonide's Infuse.

I probably could have just covered the bases with peat moss, but I wrapped a couple of the young roses, especially those just hardy to my zone. I am zone 6a on most maps, but I try to plan for zone 5. I have a southern exposure, but seem to be hit with heavy winds. So many of my early attempts (grafted) died over winter that I try to do what I can to help them survive. I had much better luck this year. My roses survived with very little die back.

The rose's name is "Overnight Scentsation." I took off the spotted leaves today. I think the spray program will help.

Roses, when I was shopping, the Bayer chemicals were slightly cheaper at Lowe's than Walmart. I didn't check Home Depot, but they sometimes have coupons online.

I have been using a Bayer systemic with fungicide, not the 3 in 1. I suspect it will take some time, but I should have less blackspot this year than last.

Anybody here ever use Messenger or Employ? I started using Messenger this spring. I use it every 4-6 weeks (instructions say every 3 weeks). So far I have no black spots on ANY of my roses.

I have been using Mighty Plant with Messenger, Bayers 3 in One Systemic, and Ortho's disease spray to keep the black spot at bay. I seems that I need all three to be successful. The black spot started early in the exceptionally warm weather this spring and I didn't react quickly enough. Looks like it's under control for now.

Only had one rose as of so far w/blackspot.. and that was a freshly planted rose so it might have come in with BS. Otherwise, it's been too dry to get BS on anyone. I water first thing in the morning before I go to work if we didn't get rain the night before and it's been good!

Is it OK to use fungicides near plants that you are going to eat?
I have a crop of herbs: parsley,Thyme, sage, oregano. It's in close proximity to the roses, 3 to 5 feet away. I'm hesitant to use something that's going to get into the soil.
But the black spot is rampant, alas.

I wouldn't suggest it unless the product states that it is OK for edibles. At 3 to 5 feet there is no way not to get it on the herbs just from wind drift let alone soil absorbtion. There are some products that are safe for edilbes.

DaveofNJ said:Is it OK to use fungicides near plants that you are going to eat?
I have a crop of herbs: parsley,Thyme, sage, oregano. It's in close proximity to the roses, 3 to 5 feet away. I'm hesitant to use something that's going to get into the soil.
But the black spot is rampant, alas.

I use a systemic Fungicide on the roes or they would be a black spot mess. No way can you get that stuff on edibles.

So here is what I would do. Instead of a spray I would mix up the fungicide in a watering can. Then water the roses and the leaves as if you are using a folliage fertilizer. If your careful it will not get near the herbs as this way no drift.

Thanks for the advice.

DaveofNJ said:Is it OK to use fungicides near plants that you are going to eat?
I have a crop of herbs: parsley,Thyme, sage, oregano. It's in close proximity to the roses, 3 to 5 feet away. I'm hesitant to use something that's going to get into the soil.
But the black spot is rampant, alas.

WOW, a thread surfaces 10 years after the first!
If you use organic fungicides such as Serenade or Sonata they safe to use around and on vegetables.
Do a net search for organic biofungicides as there are more available now; it is also money saving in the long run to bur 2.5 gallons at a time.
There are some , a powder such as , Actinovate, that have a shorter shelf life.
They cost more and only come in smaller amounts.

Have you tried the Cornell mixture? Can sulphur sprays be used near edible?

So, what I ended up doing is moving all the herbs into pots. I keep the pots in the part of the garden where are the herbs were originally. The garden looks much neater now that the oregano isn't running wild, and dare I say the pots have a certain charm. Now, if I ever need to use a fungicide or something toxic on the roses or other plants, I can easily remove the herbs to a safe place and put them back when I'm done.

Meanwhile, i've cut back the black spot and cleaned up the ground around the roses. It seems to of helped.

Thanks everyone for the feedback.