This project originates from my previous Rufford-funded project which focused on effectiveness of biological control and socio-economic impacts of the invasive Parthenium hysterophorus in Arusha, Tanzania. We found that 35% and 22% of the interviewed household were aware on the spread of the invasive P. hysterophorus and the use of biocontrol agent (Zygogramma bicolorata) respectively. Our experiment revealed that Z. bicolorata is effective in controlling P. hysterophorus by reducing vegetative growth (number of leaves, flowers, seedbank) and biomass. On the other hand, we tested a novel approach using naturalized extracts of Dovyalis caffra and Cassia auriculata, two readily available and often cultivated plants in Tanzania, and compared their effectiveness in suppressing P. hysterophorus with the chemical 2,4-D Dimethylamine. The study reviled that P. hysterophorus growth parameters were suppressed already at low and even further at high treatment concentrations. However, the natural extract Dovyalis caffra fruits in high concentrations had an effect that was as strong as chemical herbicide (2,4-D), highlighting that this environmentally friendly herbicide and the beetle can be used effectively and environmentally friendly. Therefore, this study aims at increasing awareness on the spread and demonstrate the use of biological control measures in suppressing P. hysterophorus in Northern Tanzania.