The smaller the aperture or higher F stop number, the longer or deeper the depth of field, hence unless you resort to post digital processing, it is long shutter speeds and a closed down lens. So a tripod is a very useful tool to have when shooting macro.
You can get some pretty powerful strobes for less than a hundred quid now so they can help.
Thanks @mufftickler. I understand the principles, started in the 60's black and white. Have a couple of solid tripods. I travel as light as I can (if you can call a 200/400mm F4, a light lens) so no tripod has become the norm, as they get caught up in brush and tree branches, also have to be stripped down and cleaned when they get wet in a bog. You learn to get good at hand held even with a 600mm or give up. I doubt I will get in to studio work, I like talking to the trees, birds and my dog to much.