Kapp, C., S.G. Storey, and A.P. Malan. 2013. “Options for Soil Health Measurement in Vineyards and Deciduous Fruit Orchards, With Special Reference to Nematodes”. South African Journal of Enology and Viticulture 34 (2):272-80. https://doi.org/10.21548/34-2-1105.