Eco Friendly Weed Control Using Cardiospermum halicacabum

The growing reliance on chemical herbicides has sparked concerns about their environmental and health impacts, driving the search for eco-friendly alternatives. Excessive use of chemical fertilizers results in a surplus of nutrients such as nitrogen and phosphorus, which pollutes the soil and contaminates water bodies. This leads to eutrophication, oxygen depletion, and harm to aquatic organisms. Additionally, nitrates from fertilizers can leach into groundwater, creating serious health risks for humans.In response to these challenges, this study explores the potential of Cardiospermum halicacabum (Mudakkathan), a medicinal plant, as a natural herbicide. The research aims to isolate, evaluate, and harness the bioactive components of crude extracts from C. halicacabum leaves, assessing their herbicidal properties against common agricultural weeds. Using ethanol-based and aqueous extraction techniques, crude extracts were obtained and subjected to bioassay-guided fractionation. Advanced techniques like Gas Chromatography-Mass Spectrometry (GC-MS) identified key bioactive compounds, including saponins, alkaloids, and flavonoids. These compounds exhibited significant phytotoxic effects, inhibiting seed germination and seedling growth in targeted weeds. Formulating the bioactive compounds enhanced their herbicidal efficacy, leading to the development of a natural herbicidal spray. The product was tested against various weed species, demonstrating its effectiveness. Additionally, the study confirmed the safety of the herbicidal spray, posing minimal risk to non-target organisms and the environment. The findings suggest that C. halicacabum holds promise as a sustainable, plant-based herbicide, reducing the need for chemical weed control and offering a safer, eco-friendly alternative for weed management in agricultural systems. This research contributes to the growing body of knowledge on natural herbicides, highlighting C. halicacabum as a viable candidate for integrated herbicide management and organic farming practices.