A bacterium that causes bacterial wilt and bacterial canker in tomatoes, among other crops. It can be identified by one-sided wilting and corky, bird's-eye-like spots on the fruit.
Clavibacter michiganensis causes bacterial wilt and bacterial canker in tomatoes, among other crops. Symptoms include one-sided wilting and curling of the leaves, starting with the lower leaves. White, blister-like spots also appear on the leaves, which later turn brown. As the disease progresses, light-colored streaks develop on the stems and shoots, which may split open, further weakening and damaging the plant. Small, corky spots—known as “bird’s-eye spots”—on the fruit reduce the market value of the harvested crop.
Clavibacter is a bacterium, so preventive treatment is difficult and is usually limited to disinfecting tools and hands during and after work. Carefully removing infected plants also helps contain the spread.
The symptoms of Clavibacter in tomatoes are similar to those of an infection with Pseudomonas syringae, so ultimately only a genetic test can provide a definitive diagnosis.
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