![]() ![]() Operate a rotation to reduce the risk of potential infection from resting spores in outdoor soil-grown tomato crops, ideally of at least four years (also avoid growing potatoes in the soil during this period). ![]() The soil or compost could be distributed over an area of the garden not used for growing tomatoes or potatoes. Re-using soil or compost will also increase the risk from a range of other diseases that can attack the root system or the vascular system of the plants. Due to the potential risk of long-lived resting spores being produced by the blight pathogen (see the ‘Biology’ section, below) it is best not to use the soil or compost from a blight-affected greenhouse crop to grow tomatoes in the following year.Attempting to harvest and ripen green fruit from affected plants indoors may therefore result in a large percentage of the fruit subsequently rotting, so using the unripe fruit immediately (for example to make chutney or sauces) may be a better option Once a plant has developed high levels of the disease on the leaves and stems it is likely that many of the fruit will also have been infected, even if they don’t yet show symptoms. Use the fruit from affected crops as soon as possible. ![]()
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