https://ijojournals.com/index.php/ar <p>The scope of <strong> IJO - International Journal of Agriculture and Research&nbsp;</strong> <strong>( E:ISSN 2814-189X ) (P.ISSN: 1595-9295)</strong>&nbsp;not limited to the following subject areas: Agronomy, Entomology, Horticulture, Plant pathology, Plant Science, Fertilizers and pesticides, Genetic Engineering &amp; plant breeding, Animal scienceVeterinary Science, Aquaculture/Fisheries, Agricultural Engineering, Agricultural machinery, Post Harvest and Quality, Agricultural development, Agricultural Economics, Rural development, Sustainable Agriculture, Organic agriculture, Soil Conservation, Soil Science, Rainwater harvesting and crop water management, Crop Genetics &amp; Breeding, Tillage &amp; Cultivation Agricultural products – Raw Materials, Foods, Fibers, Fuels, Irrigation, Soil &amp; Fertilization</p> en-US <p>Author(s) and co-author(s)&nbsp;jointly&nbsp;and severally represent and warrant that the Article is original with the author(s) and does not infringe any&nbsp;copyright or violate any other right of any third parties and that the Article has not been published&nbsp;elsewhere.&nbsp;Author(s) agree to the terms that the <strong>IJO Journal</strong> will have the full right to remove the published article on any misconduct found in the published article.</p> info@ijojournals.com (Rahul Khan) editor@ijojournals.com (Aasik Hussain) Sun, 30 Nov 2025 00:00:00 +0000 OJS 3.1.1.4 http://blogs.law.harvard.edu/tech/rss 60 https://ijojournals.com/index.php/ar/article/view/1234 <p><em>An experiment was carried out at the Faculty of Agriculture Central Laboratory, University of Ilorin, Ilorin, to assess the effects of selected essential oils (turmeric, clove, ginger, and lemon oils) against Scutellonema bradys infecting two stored sweet potato varieties (purple-fleshed and white-fleshed sweet potatoes). The essential oils were extracted using different solvent-based extraction methods. The experiment was laid out in a Completely Randomized Design (CRD) with four replications. Phytochemical screening was conducted to identify the bioactive constituents present in the oils. Data were collected on tuber rot, tuber appearance, and nematode population. Results showed that turmeric and ginger oils recorded the lowest nematode populations, ranging from 1.2–4.6 and 3.5–9.6, respectively, compared with the control (8.8–29.6) in purple-fleshed sweet potatoes. Phytochemical analysis revealed the presence of curcumin, phenols, eugenol, flavonoids, and other compounds that may be responsible for suppressing S. bradys. The study demonstrated that the essential oil treatments were effective in managing Scutellonema bradys in stored sweet potatoes and could serve as eco-friendly alternatives to synthetic nematicides.</em></p> AWODUN, VICTOR ADEBISI ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-nd/4.0 https://ijojournals.com/index.php/ar/article/view/1234 Thu, 12 Feb 2026 08:34:09 +0000