Steve, I assume it was you who changed the title to thrip. So if you're certain the raspberry problem is thrips, this article details several less toxic options for treatment:
http://www.clemson.edu/extensi...
Since you call it rose thrip (several species of thrips can affect roses) does that mean you are having problems with thrips on roses too? Thrips are not usually a big problem on raspberries, and the thrips that affect raspberries aren't going to destroy a whole garden but at least one thrips species is common to both raspberries and roses.
But are you sure you have correctly identified the culprit, especially since you refer to it as a beetle? If you're not certain and can post pictures of the damage and/or better yet the insect we can help better.
BTW not that it's important in the general scheme of things but the word thrips is both singular and plural, so one of them is still a thrips.
