 Silver nanoparticles were synthesized from Erecia lavus rocks. Leaf extract using a green one-step method and exhibited antimicrobial, larvocidal, and cytotoxic activity against Qlex quinquifaciatus larvae, Hela human cervical cancer cells, and MCF7 human breast cancer cells. The nanoparticles were spherical with a diameter of 25 to 35 nanometers and a graded condor red dye by 85% within 8 hours at a concentration of 200 muG slash ML. Possible applications include water purification in sunlight. This article was authored by Siddipita Ponja, internal Chaudhary, Kalyani Conra, and others.