Vol. 6, Issue 2, Part A (2024)

Black gram (Vigna mungo L.), a plant in the leguminosae family, is harmed by various insect pests, and farmers depend on chemical pesticides to control it, putting the sustainable food system at risk. So, this study aimed to discover the insecticidal properties of plant leaf extracts as part of a project to use locally available bio-resources as bio-pesticides. In an experiment from August to November of 2018, according to traditional knowledge, aqueous leaf extract of Ipomea fistulosa, Annona reticulata, and Polygonum hydropiper plants was prepared and tested for pesticide (anti-feeding) activity against an insect pest Riptortus linearis. Pests were observed after 48 hours of treatment for residual toxicity and repellency accordingly. The data from the field demonstrated that Annona reticulata had a 66.70% decline, Ipomoea fistulosa by 65.74% and Polygonum hydropiper was found to be 65.56% effective against Aphis craccivora after 48 hours of treatment. The data collected were analysed in Excel. 2010 and found the differences in the decrease as significant. All of the findings suggest that Annona reticulate, Ipomea fistulosa and Polygonum hydropiper have effective pest control over the selected pests. The utilisation of these bio-products could be advantageous for sustainable agriculture due to various benefits such as low toxicity, improved crop quality and reduced pesticide use.