This study assessed impacts of agricultural runoff (predominantly from sugar plantations) on the water quality of rivers in the lowveld, southern Zimbabwe, using selected physico-chemical variables and macroinvertebrate community structure. Thirteen sites located along Chiredzi and Runde Rivers were sampled in November 2009 and 11 sites in February 2010 for the dry and wet season sampling respectively. Findings from this study showed that agricultural runoff has a huge impact in deteriorating water quality and resulting in loss of pollution-sensitive benthic fauna, leading to species...