Rose diseases that cause leaves to fall off are often signaled by spotting, deformation or other changes in the leaves. Roses are susceptible to fungal diseases, which can cause defoliation. Pests are common causes of leaf drop. Some leaves show the signs of specific pests. Dropped leaves that have notches taken out are due to earwigs or cutworms.
Aug 31, Why Are All the Leaves Falling Off My Knockout Rose? Though the blooms are usually worth the effort, roses (Rosa spp.) have a well-earned reputation for being finicky garden residents. They.
Oct 16, Well, no one was more surprised than me when about a week later I started seeing little baby leaves budding! As things stand now, 5 of those 6 roses are full of new fresh baby leaves!
The 6th shrub still has green canes, so I'm not giving up hope yet on it. So, I do have 5 rose bushes that seem to have made it back from losing all of their leaves.