Efficacy of plant extracts against Bihar hairy caterpillar on cabbage under laboratory condition

Bihar hairy caterpillar (Spilosoma obliqua) is a sporadic, polyphagous and voracious foliage feeder attacking several host species of different families. Its impact more pronounced in certain Cruciferae family, notably cabbage. The goal the current study was to identify methods for pest control that are efficient, economical, sustainable order combat infestation on research conducted measure efficacy eight plant extracts Entomology laboratory, Lamjung Campus at room temperature from March April, 2019. There were treatments viz. Asuro (Justicia adhatoda), Bakaino (Melia azedarach), Ban fada (Lantana camara), Bojho (Acorus calamus), Kaligadi (Solanum nigrum), Neem (Azadirachta indica), Titepati (Artemisia vulgaris) Tobacco (Nicotiana tabacum) experiment. Pure cultured insects tested against treated leaf with four replications each treatment placed Complete Randomized Design (CRD). Antifeedant effect mortality tests performed 24 hours 15 days respectively. results indicated all materials posses some sort antifeedant insect. statistical analysis revealed both (87.85%) (100%) maximum bakaino followed by neem. result demonstrates great potentiality utilizing pest, suggests incorporation botanical would be future alternative management.