COVER CROPS in South African Vineyards

COVER CROPS IN SOUTH AFRICAN VINEYARDS

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120 Nematode count per 250 centimetre 3 of soil FIGURE 9.9. Counts of root-lesion nematodes per 250 centimetre 3 of soil in cover-crop treatments and a control in the Lower Orange River region. Adapted from Addison and Fourie (2008). Nematode count per 250 centimetre 3 of soil FIGURE 9 .10. Counts of ring nematodes per 250 centimetre 3 of soil in cover-crop treatments and a control in the Lower Orange River region. Adapted from Addison and Fourie (2008). Reference list Addison P and Fourie JC. 2008. Cover crop management in the vineyards of the Lower Orange River region, South Africa: 2. Effect on plant parasitic nematodes. South African Journal of Enology and Viticulture , 29(1), 26–32. Fourie JC, Malan AP and Kruger N. 2016. The effect of cover crops on ring nematodes and their management in a drip irrigated vineyard. Wineland Technical Yearbook 2016 , 18–22. Henog rye Overberg oats Saia black oats Dwarf fescue Grazing vetch Woogenellup clover Paraggio bur medic Pink serradella No cover crop 100 80 60 40 20 0 1995 1996 1997 1998 3000 2500 Henrog rye Overberg oats Saia black oats Dwarf fescue Grazing vetch Woogenellup clover Paraggio bur medic Pink serradella No cover crop 2000 1500 1000 500 0 1995 1996 1997 1998

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