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Tomato bacterial wilt symptoms
The disease usually shows no symptoms at the seedling stage, and the disease begins when the plant grows to a height of 30 cm. The first is that the top leaves wilted, after which the lower leaves wither and the middle leaves wither. The diseased plants dared to wilt during the first days and return to normal in the evening. If the soil is dry and the temperature is high, the diseased plants will no longer recover and die after two to three days. The leaves will have a slight color, but they will remain green, so they are called bacterial wilt. In the condition that the soil contains more water or it rains consecutively, the diseased plants can only survive for a week or so. The epidermis is often rough and uneven at the lower end of the stem, often with large and varying lengths of adventitious roots. When the weather is wet, sick stalks can appear in patches of 1 to 2 cm in size and appear as watery brownish patches. Disease stem xylem brown, squeezed by hand milky viscous.