Biopesticidal efficacy of Ricinus communis Linnaeus and Achyranthes aspera Linnaeus against bruchid, Callosobruchus maculatus Fabricius (Coleoptera: Bruchidae) infesting blackgram Thakur D.R.*, Kumari Savita, Kumar Rajesh Department of Biosciences, Himachal Pradesh University, Summerhill, Shimla - 171 005, Himachal Pradesh, India *Corresponding author's E-mail: drdr4@rediffmail.com
Online Published on 17 January, 2024. Abstract The biopesticidal efficacy of locally available plants, arandi, Ricinus communis and puthkanda, Achyranthes aspera was evaluated against Callosobruchus maculatus infesting black gram, Vigna mungo in storage. The extracts of leaves, stem and seeds of both plants were made in acetone and methanol to evaluate the efficacy on adult deaths, fecundity and F1 generation. The death was counted after every 24 h upto 100% eradication of weevils. The methanol extract of R. communis seeds showed 100% mortality on 5th day and acetone extract of A. aspera stem reported 100% deaths after one week at 20% concentration. R. communis seeds extract and A. aspera stem extract proved to be potentially effective in controlling C. maculatus. Top Keywords Bio-efficacy, C. maculatus, Himachal Pradesh, Pest, Plant extracts. Top |