There are an array of different fungal and bacterial diseases that cause spots to form on the fruit and/or leaves. These spots often reduce the vigour of the plant, cause leaves to yellow and fall off, and/or can cause fruit to become inedible.
Healthy plants are less likely to be affected by bacterial and fungal diseases. Keep plants well watered over the drier period and keep them well fed.
Fungal disease thrive in wet humid conditions. To help, plant in a sunny, relatively open position. Open up or train vines to allow light and increase air flow around the plant.
Where possible, water in the morning and avoid wetting the foliage.
Clear up leaf litter from around the plants. Remove and take away yellowing and spotted leaves.
Spray foliage with copper.
Spraying copper 4 times a year is generally allowed under organic certification.
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