Quote:
Originally Posted by Ellen  dtje: Did your tree survive unharmed after the olive oil spray? If so, then it's safe.
Roses seem to be the most finicky plants there are. They inevitably get aphids, black leaf fungus, powdery mildew, and anything else that's lurking around. I finally gave up on keeping mine looking nice and left them to die, but they have somehow achieved an equilibrium in which the pests get eaten by something (ladybugs?), the ugly leaves fall off and are replaced by new healthy ones, and they bloom their little hearts out all summer and fall. |
100% agree with you
I have several large roses, including some huge climbers. I used to fight a losing battle with black spot, aphids, mildew and it was a major task to spray them, Now I just let them be and they have achieved this equilibrium. The worst disease, black spot is just inevitable but a healthy rose once well established will resist this with no problem. Same with aphids.