Anti-bacterial potency of weed plants

The present study was planned to evaluate the anti-bacterial potency of some common weeds such as Quercus infectoria Olivier, Chromolaena odorata (L.), Ageratum conyzoides, Tridax procumbens, Mikania micrantha, Leucas cephalotes, Oxalis acetosella, Achyranthes aspera, Eupatorium odoratum, Oxalis corniculata Linn. Aqueous extracts were prepared using leaves of selected weeds. All the weed plants leaf extracts were tested for the anti-bacterial potency against two bacteria strain i.e. Gram- positive (Bacillus cereus) and Gram-negative (Pseudomonas aeruginosa) using agar well diffusion method. All the extracts showed anti-bacterial potency against tested bacteria while Quercus infectoria Olivier inactive against Pseudomonas aeruginosa.