Vol. 9, Special Issue 9, Part B (2025)

A field trial was conducted in the experimental field of College of Horticulture & Farming System Research (CHFSR), Assam Agricultural University, Nalbari to assess the efficacy of two botanical insecticides and cow urine and their combinations against the Brown Citrus Aphid, Toxoptera citricida of Assam lemon. Plant extracts from Lantana camara and Chromolaena odorata, cow urine alone and in combination of all these were evaluated. The investigation showed that the leaf extract of L. camara, C. odorata, and cow urine has anti-insectidal activity against Brown Citrus Aphid, T. citricida. The treatment of combined mixture of L. camara, C. odorata and Cow Urine was the most effective in controlling the Brown Citrus Aphid, T. citricida in Assam lemon. These botanicals and cow urine have importance to the resource-poor farmers in many areas of developing countries.