Tomato plants are very vulnerable to disease, most of which are fungi-based and almost impossible to get rid of once a plant has become infected. The best way to save your plants from tomato plant diseases is with adequate care and preventative measures. But here is how you can identify a disease and deal with it in the best possible way:
Identifying a Tomato Disease
Most diseases will cause spots or dark patches to appear on your plant leaves or on the fruit itself. Often these patches will discolour – becoming dark brown or black in wet weather. The diseases most likely to strike in dry, hot weather tend to be lighter in colour.
As the diseases tend to interrupt the proper flow of nutrients, water and oxygen through the plant’s system. Growth of the outer-reaching areas of the plant will often be inhibited and one of the first symptoms of any tomato plant disease is the upper leaves beginning to wilt and turn yellow.