  The results of calculation of light gluino contributions to
Gamma(Z--->hadrons) and Gamma(tau--->hadrons) to O(alpha_s^3) are presented.
The net effect in the case of Z decay is noticeable. For the tau width the
effect is very large and, if a light gluino exists, suggests that alpha_s
increases by more than 15% relative to the Standard Model analysis.
