Rose slug?

Hi, i keep finding holes In my rose leaves. I have used slug pellets, but whatever is eating my rose hasn't been affected. Do you know what is causing this damage? Thanks

Rose slug sure can do that. When they are younger they tend to leave the veins a bit more intact, so you see a fine brown netting where the green part got eaten, but the bugs were too small to eat the veins. As they get bigger then can munch the finer veins, too, so you get the holes like that.

Go to site that specialize in plant pests near you to see which species are found near you. Then you can go look for the pests.

You can try trapping. This will trap a lot of different pests:
Loosely roll up some newspaper and put it on the ground near the roses. Leave it overnight.
Pests often sleep through the day, then come out at night to feed.
Pick up the rolled paper in the morning and quickly drop it into a bucket. You can shake it out into the bucket and see what kinds of pests you have in the garden.

Slugs Don't Like Roses, I would suggest the holes in the leaves are caused by Ear-wig's these are small insects that are normally brown, thin with little pincers at the tail end.
These insects only become active usually at night, so you wont find them in daylight, the best way to see IF these are the culprits is to fill a small plant-pot with straw, shredded paper say from a shredding machine, once you have filled the pot, place it upside down onto a garden cane and stick this really close to the Roses your having the trouble with.
In the morning, go outside with a bucket of boiling water and shake the straw / paper, into the boiling water, be sure, these insects RUN like the devil and are fast. The other way to get rid is to empty the straw / paper into a metal bucket and set it alite. Replace the straw / paper and reset this trap checking every morning till there are no more earwigs to be found.

There are sprays and sticky traps you can buy from the Garden store BUT, when you use these types of traps, you are also trapping ALL other insects, most of them are friends to the gardener and most importantly some are required for pollination to give your Roses their flowers, and our fruit to be set, veg to grow and regenerate, so I always go down the route of treating the bugs we need to get rid of by making sure we actually have these bugs, we can use as many killers that harm all the other insects and wild life YET, NOT make sure were killing the right bugs, diseases or whatever.unless you know you have slugs, don't use slug pellets especially the type that kills off birds / fledgling etc as these eat the dead slugs as do other 4 legged garden friends.

Hope you get results very soon, normally within a week you should find less damage IF you trap the ear-wigs BUT stick with it after you find the culprit's.

Good luck and Kindest Regards.
WeeNel. .

Rose Slug is the larva of a saw fly. Not a mollusk.
http://www.missouribotanicalgarden.org/gardens-gardening/your-garden/help-for-the-home-gardener/advice-tips-resources/pests-and-problems/insects/sawflies/rose-and-pear-slugs-sawflies.aspx

Earwigs sure can do that, too.

The rolled or shredded paper trick is a good way to catch a large number of possible pests, and by shaking them into a 5 gallon bucket (vertical, slick sides) the ones that crawl cannot escape so easily, so there is a chance to ID them.

Diana, thanks so much for clearing that up re the Larva of the saw flies, never heard of them being called Rose slugs here in UK so you learn something NEW everyday with regards gardening.

The only other thing that came to mind for me IF it was NOT Ear-wigs, would be leaf eating bee's, these type of bee's remove bit's of the foliage and take it back to the nest / hive for building the structure, BUT my own gut feeling would be Ear-wigs as they are almost impossible to spot in daytime. BUT hope there is results very soon, nothing worse that watching any plant being eaten or shredded up and cant do anything.
Take good care Diana and again, thanks.
Best Regards.
WeeNel.

Leaf eating bees usually take very rounded bites out of the edges. Not saying it is not bees, but not any of the ones I am familiar with.