Help! Nearly all the leaves on my mock orange bush have been consumed by this little bugger! Can you please help identify and recommend an arsenal?

Thanks!

Good idea to post here in addition to Ask a Question. These are the links I posted there but as I said on that thread, neither article gives a scientific name and just calls it the mockorange sawfly so I'm not sure what sawfly it is (but it does appear as far as I can tell from your photo to be a sawfly larva and not a caterpillar):

http://www.walterreeves.com/ga...

another article, but with no picture, is here:
http://blog.syracuse.com/cny/2...

Maybe someone in this forum knows what sawfly it is.

to ATP by the way.