This is a typical pattern of rose slugs - small green to beige caterpillars. They don't do much real damage as the "good bugs" and birds will come in to eat the caterpillars if you resist spraying chemicals. The short term way to get rid of the caterpillars is to search under the leaves and squash them, and/or spray the bush with a strong stream of water. That's as effective if not more effective than anything else you could spray, and it avoids getting into a chemical cycle. Letting the good bugs and birds take care of this crop means fewer of the rose slugs in coming years.

The eaten leaves will still have the holes regardless of what you do, but if you let them fall off in their natural cycle the new ones can grow in without the holes. I sometimes pull off a few if they really bug me, but once you've sprayed the water you're tackling the problem at its source. The rose will recover fine and it's a common condition at this time of spring.

Cynthia

thank you.

Vine weevil does this to my roses occasionally too. Not the larvae--the actual adult bug. I go out and squish them if I can find them--their exoskeleton is really, really strong so it takes a strong constitution to take them out between the fingers. I usually only have to kill a couple of them and the damage stops. This year they ate through the stems of my regal lilies before I found them. So no regal lily blooms this year!