Tomato blight, properly called late blight disease, can kill a plant within a week. It’s the same fungus that causes potato blight, so if you find blight on your spuds, it’s extremely likely
it will appear on your tomatoes, particularly those that are grown outdoors.
Spread by airborne spores that can be carried over 30 miles on the wind, blight is most prevalent when conditions are warm and wet. Infection needn’t be inevitable, however, if you take steps to avoid the disease. Before the growing season starts, begin by choosing seed of resilient varieties, then follow our tips on growing and watering tomatoes to boost the chance of a healthy harvest.
Cherry tomatoes tend to be less likely to catch blight than beefsteaks, because they ripen earlier and are often harvested before blight hits. In addition, some varieties have been bred with a degree of blight tolerance – they may still catch the disease, but are able to survive and yield some healthy fruit.
We’ve picked a bumper crop of varieties to help you on the road to blight-free tomatoes...