Yellow leaf frustration.....
I am driving myself crazy over the yellowing leaves on my miniatures. Some are two years old and others are new this spring.
The leaves continue to get black spot, and yellow leaves even tho I have treated all of them with Bayer's three products. Bayer's II for Roses and other plants, Bayer's III for Roses, and Bayer's Rose Disease Control. I have sprayed and I have also drenched and I am still not curing the disease. I am ready to toss all of them (16 miniatures) and move on to something else. Any suggestions outside of burning the whole darn bunch????
They are not "store" bought, I bought them from a very reliable nursery. My regular sized roses are doing just fine with only a few dropped older leaves.