Composition and Efficacy of Zanthoxylum alatum Essential Oils and Extracts Against Spodoptera litura

Zanthoxylum alatum Roxb. (Z. armatum DC.), belonging to the family Rutaceae, is a large genus of over 200 species of aromatic plants, in which 10 species are reported in India [1]. The species distributed in the hot valleys of the subtropical Himalayas is an important shrub that is traditionally and medicinally used in "kapha" and "vata," abdominal and dental problems, leucoderma, asthma, and in fever and dyspepsia due to their deodorant, disinfectant, and antiseptic properties [2]. Many researchers have reported that the essential oil and extract exhibited good antimicrobial, insecticidal, larvicidal, anthelmintic, and antiinflammatory properties and are also useful in gastric ulceration [3-8]. The bark and seeds of the shrub are generally used by the local inhabitants of the subtropical Himalayas to treat toothache and pyorrhea. The literature survey revealed the chemical composition of essential oils from the leaves, terminal branchlets, fruits, and pericarp [9-13]; earlier, 10-12% ...