Water hyacinth (Eichornia crassipes [Mart.] Solms) is alien invasive hydrophytes that cause environmental hazardous. Bioconversions of water hyacinth through vermicomposting were attempted. In the present study water hyacinth integrated with cow dung (1:3) was allowed for composting for a period of 45 days by using earthworm species Eisenia foetida. Later it was subjected to analysis of microbial flora (Bacteria: 93.07×10ˉ⁶ CFU gˉ¹; Fungi: 118×10ˉ² CFU gˉ¹ and Actinomycetes: 77.52×10ˉ³ CFU gˉ¹), physicochemical characteristics, nutrients (Nitrogen 2.85 %, Phosphorus 2.10 % and Potassium 3.05 %) and employed as good organic manure for the pot culture of the leguminous crop namely Peanut (Arachis hypogaea L.) and was found to be a better growth and yield.

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