Common issues for growers

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Bacterial Speck is a bacterial disease and results in small, black spots on leaves, stems and fruits of tomatoes, at all stages of growth.

Prolonged wet and humid conditions promote leaf spot disease and most pathogens are spread by wind, splashing rain or irrigation that carry the disease to other leaves.

Damping-off fungal diseases such as pythium may kill small seedlings of most vegetables. Seedlings die before they emerge or soon after emergence, which results in plant collapse.

Mild, humid weather can bring downy mildew fungus disease that can cause greyish-white patches on the leaves.

Powdery mildew is a fungal disease. In warm, moist conditions, white patches occur on the surfaces of older leaves and leaves turn brown and shrivel.

Potatoes are often infected with superficial skin diseases, such as common scab, powdery scab and rhizoctonia.

White mould or sclerotinia is a fungal disease that can attack most vegetables,  White mould may stay in the soil for many years and affect following crops.

Fungal diseases such as fusarium, rhizoctonia and verticillium can cause wilting and death of most vegetables, by attacking roots and basal stems.

Removing mould from your growing space can be time consuming, expensive and unhealthy. If not done correctly, the mould can spread.