“…The application of organic material, though a traditional practice to improve soil fertility and structure, is also known as a control method for soil-borne diseases, including plant-parasitic nematodes (Hassan et al, 2010;Houx et al, 2014). In recent years, a variety of organic materials, such as animal and green manures, compost, and proteinaceous wastes, are used for this purpose (Summers, 2011;Stirling et al, 2011;Renco & Kovacik, 2012;Olabiyi & Oladeji, 2014;Abolusoro et al, 2015;Rudolph & DeVetter, 2015;Tiyagi et al, 2015;Briar et al, 2016;Forge et al, 2016;Atandi et al, 2017;Shiferaw et al, 2017). Incorporation of organic amendments has been shown to be detrimental to plant parasitic nematodes (Wang et al, 2004) due to release of NH 4 , formaldehyde, phenol, volatile fatty acids and toxic compounds (Oka, 2010;McSorley, 2011;Briar et al, 2016).…”