So what you’re saying is there’s is a fungus among us?
We dug ours out last summer, we had those worms that build a leaf funnel looking thing. I want way lower maintenance than they require.
These knockout roses are some of the easiest things to grow. I’ve given them no water and they have gone from 1.5 foot tall stumps to 4.5 foot tall fully bloomed out this year. Other than a quick spray with bug repellent for those sack worms you speak of, I haven’t done anything.
Yes, there are other plants that are extremely low maintenance, but none of them will put off the flower of knockout roses.