Why Do Bottom of Tomato Plants Turn Yellow?

Tomatoes are a favorite garden crop of many people. They are easy to grow and the fruits are versatile in the kitchen – used in everything from salads to sauces. But one issue that tomato growers often face is yellowing at the bottom of the plant. This can be frustrating, but it is a common problem with a few different causes.

Lack of Water or Nutrients

The bottom of a tomato plant turning yellow can be a sign that the plant is not receiving enough water or nutrients. Tomatoes require a consistent supply of water, especially during hot summer months. If the area around the tomato plant is dry, it will show up first at the bottom of the plant with yellowing leaves. Similarly, if the soil is lacking in nutrients, especially nitrogen, the plant will show signs of stress with yellowing at the bottom.

Root Damage

Root damage can also cause the bottom of a tomato plant to turn yellow. This can happen through overzealous weeding, pest damage or planting in compacted soil. Roots need space and oxygen to grow and develop, and if they are damaged or restricted, the plant will suffer. In addition to yellowing leaves, the tomato plant may be stunted or have difficulty producing fruit if root damage is severe.

Environmental Factors

Tomatoes are sensitive plants that are susceptible to environmental factors. Extreme temperatures, including both frost and heat, can cause yellowing leaves. Additionally, if the tomato plant is receiving too much direct sunlight, it can also cause yellowing at the bottom. It is important to take note of the plant's surroundings and adjust as necessary. If the plant is placed in a location that is too hot or too cold, it will be more susceptible to yellowing and other damage.

Disease

Finally, yellowing at the bottom of a tomato plant can be a sign of disease. Fusarium wilt, for example, is a fungal disease that causes leaves to turn yellow and wilt. This disease is caused by a soil-borne fungus that attacks the plant's vascular system. Another disease that can cause yellowing at the bottom is verticillium wilt. This disease also attacks the plant's vascular system, and is caused by a soil-borne fungus. If you suspect that your tomato plant is suffering from a disease, it is important to remove it from the garden as soon as possible to prevent further spread to other plants.

Conclusion

Yellowing at the bottom of a tomato plant can be caused by a number of different factors, ranging from lack of water and nutrients to pests and disease. It is important to regularly inspect your plants and take note of any changes or abnormalities. With a little bit of care and attention, you can help your tomato plants to thrive and produce an abundance of delicious fruit.