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Tomato pests and problems

Solanum lycopersicum

Common Tomato problems

These problems, diseases and pests are known to affect Tomato plants:

Tomatoes can afflicted by a large host of diseases and fungal infections. The good thing is that there are many tomato varieties that will have certain resistances to problems that might be issues for certain areas. Areas with high rain fall for example will have an increased risk for blights.


Another method to avoiding disease is to practise crop rotation. By not growing the same kind of plants in the same soil year after year this prevents diseases and fungi that cause disease from building up in the soil.


Good sanitation is also important for keeping your plants and garden space healthy year after year. If you suspect a plant of disease keep it from touching other healthy plants. Wash your hands and all tools well before using them on healthy plants if they’ve touched diseased plants.


Practising good weeding techniques is also important and weeds can often harbour disease for plant in the Solanum family but not show any outward signs themselves.


Below is a list of the some of the most common diseases and afflictions that can affect tomatoes. It’s important to get proper identification for your sick plant and what’s afflicting it if you suspect any of these. Bringing a small part of the plant to a local greenhouse will often give you the best result for identifying what’s wrong with your plant and getting the correct course of treatment.