Yes ...I recommend a tripod .... in fact, the heavier it is, the better ....heavier as in "stoutness"
in fact I would recommend a tripod for anyone that shoots close-up ...and its one of those "must haves" for anyone thinking about getting into macro
the closer we get (and bigger the subject gets) - the more shake there is ...a tripod will steady that ...allowing for clearer shots ....
another plus ...say we are all set-up to take a shot ...and a wind picks-up ...while waiting out the wind, we can relax our arms .... while the camera is at ready