The rose foliage chewing is caused by a very common pest out now, Roseslug Sawfly. The larvae, which look like small green caterpillars, hide mostly on leaf undersides. Several species occur in our area and they have one or more generations per year. They are fairly easy to manage, and even if you opt to leave them alone, the rose should eventually recover just fine on its own if it is otherwise healthy.

The other insects clustered on the rose stems are aphids, another very common pest that is also easy to manage. Both sawfly larvae and aphids can largely be blasted off the plant with a strong spray of plain water from a garden hose, though a low-toxicity insecticide is an option as well, as mentioned on the linked pages.

The insects on the azalea are Azalea Bark Scale, and management tips are given in our general scale web page(s). If insecticides are used for them, a different approach is usually needed, either treating the hatchlings when they appear with a topical spray or treating the shrub with a systemic insecticide (which is absorbed by the plant and may require hiring someone, since some of these ingredients are illegal for the general public to apply in MD).

Miri

Hello Miri,

You're welcome.