Sawfly larvea...Rose slugs....Little green worms usually found under leaves... Take them off by hand or the least toxic spray would be safer insecticide soap or spinosad... Read & follow directions...

Some rose slugs are there only for a short time, others can be there an entire season...All depends...

thanks jim

That is from rose slugs (sawfly larvea). There are 3 types of rose slugs. The weather was so crazy here this spring that the rose slugs got a head start in my yard. I had to do a little squishing until the calvary arrived. They are paper wasps and they love to eat rose slugs, aphids and many other pests. Your are still young and very hard to see as they are nearly the same color as the leafs. They will grow larger as they eat and can be found on the bottom of the leaves.

I have a major munch going on in my roses now. I've put out slug bait as they were all over the leaves like tiny white threads after the last rain. It helped some but I've got other things also and sprayed a few of the worst damaged with insecticidal soap but no difference it seems.

slug bait does not work... rose slugs are not acually slugs... (sawfly larvea...)

Thanks for all the reply. As I said in my post I'm a newbie in rose growing and all your comments helps me a lot.

I took some photo of my rose today and noticed that some of the new leaves are completely gone some are wilted and crisp. Are these still damages from rose slugs (see picture below)?

I am dealing with them I bought some safer's caterpillar insecticide for them but after reading the instructions saying to make sure one wears gloves eye goggles, long sleeves and slacks when doing it and not to get any on clothes when spraying it- I am not so sure I want to use it as I don't have anything big enough to mix 2 gallons of it and then I have to pour that into a spray bottle to use it and there is only 5 roses that are affected by them. But they are in different places in the garden. I noticed even though the bottom part of the leaves are almost eaten I have not been able to find anymore on them. We have lots of birds flying in that part of the garden so is it possible they ate the majority of them?? Also have little green winged insects on the leaves too do they eat them as well??

Did you buy safer soap...

Link

https://hydrobuilder.com/garden-care-pest-control/disease-pest-control/insects-mites/safer-brand-insect-killing-soap-concentrate-16-oz.html?ptid=8552139979&gclid=Cj0KCQjwx43ZBRCeARIsANzpzb-hEqIZ73aURYM_Sk3V4lJyyZndxFKPKdSRv4y8sItdd2q9Dhj1bNEaAuECEALw_wcB

I put eye protection on and wear long sleeves, other than that nothing... They have to put safety warnings on labels to protect themselves...

There are a few other things that are going on. The leaves that have. Smooth half circles are from leaf cutter bees. Little grasshoppers are getting reved up here. They eat large portions of a leaf. My tiny Soul Sister is just now regrowing from her roots after nearly perishing over winter. Now there is a tiny grasshopper eating it. Very hard to catch a grasshopper.

I mean no offense to anyone anywhere when I say this as we are all different individuals. Just saying that for every insect killed with an insecticide you are also killing the predator that lives by eating it. The insects just build immunity to anything you use anyway.

So now I’ll shut up because I really like everyone on here whether you use a pesticide or not.