BioAdvanced Disease Control for Roses, Flowers & Shrubs Concentrate - 32 oz

It works for powdery mildew on roses! I tried to avoid a systemic and sprayed 4 times with various home concoctions I’ve seen touted online and none of them got rid of the mildew. Not even phased it. One treatment with this and I have blooms and green leaves again. If you have a lot of roses and live in a warm humid area this may be your only hope for a blooming rose garden.

Quick service - Product extremely effective.

It's taken me a while to write this review but after a full year using it on my roses I still don't quite know if I liked it or not. It's very easy to use but my success has been so-so. I started spraying this on my roses leaves as soon as they started appearing, as instructed, and all growing season last year I faithfully applied the spray to my rose leaves every other week, as instructed. The photo attached shows that I still, despite consistent application, got spots on my leaves though I will admit the spots weren't as bad as the previous year. I also noticed, but forgot to take a picture of, was that as the season progressed the spots did appear less frequently and I even had a good amount of leaves with no spots, I hesitate to say this product solved the problem. It helped certainly and I'll continue to use it again this upcoming year but it wasn't a miracle product. Maybe I was doing something wrong, I don't know. I would rate this 3.5/ 5 as it does help the spotting to some extent but didn't solve it.

Works great

I like planting petunias around the yard and while my Supertunias and Wave petunias grow great without any issues i have a flower bed with just regular petunia sp and they always seem to suffer from botrytis/mold after it rains. The flowers will look all melted and slowly the plants will die. I mix this up per the instructions in my 1/2 gallon pump sprayer and will give the flowers a good spray when the sun is going down before a rain storm. The pentunias are growing great. I still will have a few flowers I will pick off but over all im happy. I also have a big issue with powdered mildew on lilac bushes and sunflower leaves. The lilac bushes i will have to spray a few nights in a row but it does cut down on the powdery mildew significantly. I think by doing this is keeps my lawn looking better as a result. I have a small lawn so this bottle goes along way.

Within three weeks, we noticed a noticeable difference in the appearance of these plants where before the leaves were spotted, red,falling. now I can see new buds coming, and they look much more healthy

I use it every month and have done so for years My climate is humid and often wet. This product not only encourages production of blooms but keeps my 15 rose bushes bug and disease free

Did not work well for us.