Evaluation of Locally Available Botanicals for the Management of Maize Weevil (Sitophilus zeamais Motsch.) in Room Storage Condition

From April to July 2019, an experiment was conducted in Khumaltar, Lalitpur (27°39.312′N, 85° 19.586′E, and 1322 m above sea level) assess the effectiveness of plant materials on maize weevil (Sitophilus zeamais Motsch.) control under laboratory conditions (maintained room temperature 28.5 ± 2°C, relative humidity 72 5%) treatments were Acorus calamus (rhizome powder) @ 5 g·kg−1, Melia azadirach seed) Curcuma domestica mustard oil 2 mL·kg−1, Gingiber officinalis rice husk ash untreated control. These evaluated a completely randomized design (CRD) with three replications. At four months, grains treated had least weight loss (6.66%), grain damage (1.23%). Grain (18%), (62.33%) highest treatment. Similarly, fewest number exit holes (3.10 per 100 g seed), while treatment largest (45.10 seed). There significantly higher weevils (55.80 250 grains), but only few numbers calamus-treated (2.50 grains). In contrast other grains, showed reduced preference for calamus- low loss, damage. findings can be used promote locally accessible botanicals Nepal.