Abstract            Volume:11  Issue-3  Year-2023         Original Research Articles

Online ISSN : 2347 - 3215 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcret@gmail.com

Weed plants are very important components of agro-ecosystems especially nutrient availability, nutrient cycling and agro ecological diversity. The weeds also provide floral rewards for many pollinators and promote diversity. In this study 24 weed species in uninhabited land (Site I), semi- cultivated land (Site II) and cultivated land ecosystem (Site III) were studied to know the diversity and abundance of 67 insect visitors associated with them by considering Simpson diversity index (SDI), Simpson’s Index of Diversity (SID), Shannon-Wiener index (H’) and Jaccard index (JI), and also their interrelationship among themself. Site I, highest SID was 0.92 on Lantana camara of and least of 0.66 on Commelina benghalensis and Stachytarpheta indica. Whereas, highest H’ was 1.13 on Lantana camara and least of 0.56 on Solanum nigrum L. In Site II and in Site III, it was found that SID was highest with values of 0.91 and 0.94 respectively on Lantana camara and least in Convolvulus arvensis L and Solanum nigrum L. Weed plants Lantana camara, Alternanthra echinate, Emilia sonchifolia, Tridax procumbens, Commelina benghalensis and Leucas urticaefolia showed greater association with pollinators diversity. Thus weeds can support pollinators’ diversity even during the floral dearth period and promote agrobiodiversity. Taking this into view, weed plants can be supported to grow on roadside or fallow lands, also proper planned establishment on field margins to support pollinator fauna.

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