A PROCESS FOR PREPARATION OF BIOFUMIGANT FROM LEAVES OF LANTANA CAMARA AGAINST STORED GRAIN INSECT PESTS

摘要

A process for the preparation of biofumigant molecule from leaves of Lantana camara effective against stored grain insect pests Extracts from the leaves of Lantana camara were found to have insecticidal activity against the stored product insects. The bioactive principle was isolated from the active extracts by column chromatographic fractionation. The molecular structure of the compound was characterized by NMR and GC-MS. The bioactive molecule was identified as Cownaran (2, 3, dihydrobenzofuran). The purified compound showed insecticidal potency against the stored product insects, Sitophilus oryzae, Callosobruchus chinensis, and Tribolium castaneum by fumigation. Grain protection properties of the compound treated wheat and green gram treated with 30 ppm/kg. The compounds were found to protect the grain against infestation during storage. The compound could also be used for seed treatment, household infestation control, crop pests control and ectoprasitic control on domestic animals and pets. Cownaran is known bioactive molecules with novel insecticidal activity from leaves of Lantana camara and a promising grain protectant of natural origin.