This study was conducted about the effectiveness of weed Dactyloctenium aegyptium. Weedsare familiar dominant, redundant, adverse and weed that contend with sophisticated crop for water, nutrient and sunlight and another several reasons such as, high growth rate, high reproductive rate and produce harmful or beneficial allelopathical effect of cultivated crops. The stems of Dactyloctenium aegyptium are willowy, geniculate and leaves are found roughly. Methods: This Investigation was done in

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... -19 to 2020-21. Different part of Dactyloctenium aegyptium as leaves and seed was taken from the near area of Sardar Vallabh Bhai Patel Agriculture and Technology University Modipuram Meerut. The samples were shade dry for 24 to 48 hours and then grind in the powder form. The extract were prepare in different organic solvent as Methanol, Ethyl acetate, Butyl alcohol, Benzene and Water at 1:10 ratio. Antioxidant activity of weed extracts by three methods named DPPH FRAP and ABTS methods. Result: All part of this weed show effectiveness due to the presence of active compound, who responsible for the positive result. Extract mixed with media at a particular concentration i.e. 5%, 10% and 15% show effect on soil borne fungal phytopathogens and then over the surface of petriplate the growth was appear reduce when we increase the concentration of extract. At the end we conclude that the 15% extract concentration of both part of Dactyloctenium reduce the growth of all the soil borne fungal phytopathogens.