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Large rose sawflies have pale spotted black, green and yellow larvae that eat the leaves of roses, sometimes causing severe defoliation. Roses can also be attacked by other sawflies such as the rose leaf-rolling sawfly and rose slug sawfly or slugworm.
Thereof, what's eating my rose leaves?
Rose slugs look like tiny caterpillars, but are the sluglike larva of a sawfly. Young rose slugs can skeletonize lower leaves, while larger ones can chew large holes. A strong stream of water or insecticidal soap will help reduce these pests. The white larvae can kill canes or an entire plant.
Similarly, it is asked, what is causing holes in my rose leaves?
Rose sawfly (sometimes called rose slug) larvae are a common pest of roses. The early feeding damage causes “windowpanes” of transparent leaf tissue on the leaf as the larvae feed on the surface of the leaf.
White oil can kill aphids by blocking their breathing pores. To make white oil, pour two cups of vegetable oil and half a cup of actual soap into a jar and give it a good shake. Mix two drops of dish soap with a liter of water. Spray the dish soap solution thoroughly on the rose bush.