The present invention in a preferred embodiment provides herbal composition, having pesticidal effect or pesticidal activity for control or elimination of plant pests the composition comprising at least a part of Polygonum glabrum Roxb. (Dense Flower knotweed), part of Alternanthera sessilis L. (Gndhari Sag), and part of Azadirachta indica L. (Neem), to which parts of one or more additional complimentary herb may be optionally added, wherein the additional complimentary herb may also be a herb for control or elimination of plant pests such as but not limited to parts of Eclipta alba, Abrus precatorius, Allium sativum, Apium graveolens, Argemone mexicana, or any combination thereof. The invention also provides for methods of preparation of the herbal composition.
