School of Crop Protection, College of Post Graduate-Studies (Central Agricultural University), Umiam 793103, Meghalaya, India.
Division of Crop Protection, ICAR Research Complex for NEH Region, Umiam 793103, Meghalaya, India.
J Environ Manage. 2018 Feb 15;208:46-55. doi: 10.1016/j.jenvman.2017.12.017. Epub 2017 Dec 14.
Bamboo-Leaf Prickly Ash, Zanthoxylum armatum (Rutaceae) is a versatile and widely distributed plant species in nature. It is an edible plant species, commonly used in daily life for condiments and therapeutic remedies. Besides its bioactive and medicinal properties, different plant parts of the Z. armatum also have insecticidal potential. However, this potential has not been yet determined against many agricultural pests, including leaf worm, Spodoptera litura (Lepidoptera: Noctuidae). In this study, we demonstrated for the first time the contact and oral toxicity and sub-lethal effects (including antifeedent and ovicidal action) of various fractions of pericarp, leaf and seeds of Z. armatum against S. litura. Overall findings revealed that the n-hexane pericarp extract of Z. armatum has strong antifeedent, ovicidal and larvicidal properties against S. litura. Sub-lethal doses of pericarp extract can negatively alter the biology of S. litura. Since n-hexane extract of leaves also has better larvicidal properties, it could also be utilized for the S. litura management during period of unavailability of fruits (or pericarp). Accordingly, the Z. armatum pericarp and leaf extract has tremendous commercial utilization potential for the management of polyphagus pests like S. litura and other related species, which are quite difficult to manage even by chemical pesticides.
竹叶花椒，芸香科花椒属植物，是自然界中一种用途广泛且分布广泛的植物物种。它是一种食用植物，在日常生活中常用于调味品和治疗药物。除了具有生物活性和药用特性外，竹叶花椒的不同植物部位也具有杀虫潜力。然而，这种潜力尚未针对许多农业害虫进行确定，包括斜纹夜蛾（鳞翅目：夜蛾科）。在这项研究中，我们首次证明了竹叶花椒果皮、叶片和种子的各种馏分对斜纹夜蛾的接触和口服毒性以及亚致死效应（包括拒食和杀卵作用）。总体研究结果表明，竹叶花椒的正己烷果皮提取物对斜纹夜蛾具有强烈的拒食、杀卵和杀幼虫作用。亚致死剂量的果皮提取物会对斜纹夜蛾的生物学产生负面影响。由于叶片的正己烷提取物也具有更好的杀幼虫特性，因此在果实（或果皮）不可用时，也可以将其用于斜纹夜蛾的管理。因此，竹叶花椒果皮和叶片提取物具有巨大的商业利用潜力，可用于管理斜纹夜蛾和其他相关物种等多食性害虫，即使使用化学农药也很难对这些害虫进行管理。
