A good wax base to begin with helps with removing pitch, bugs, tar, etc.
What works for us is: pitch...WD40, bugs...a couple of drier sheets in a spray bottle filled with H2O (don't laugh it works), tar...WD40 or turpentine. I will re-wax the nose or those areas I have cleaned.
Great things to look forward to after hibernation season ends...can't wait.
Happy
Trails