Title: Investigating the effect of cover crops in suppression of Phytophthora nicotianae and subsequent changes in the soil microbiome in citrus orchards in South Africa.

Objectives:

Monitoring the suppressive effect of cover crop mixture at the developmental stages on Phytophthora nicotianaeand citrus nematode densities in the soil.Quantify the P. nicotianaeand nematode population densities. DNA extraction for the soil microbiome analyses. Determining the soil physical and chemical properties.