How to Get Rid of Blight on Tomato Plants

Tomatoes are one of the most popular vegetables to grow in a home garden. Unfortunately, one of the biggest threats to tomato plants is blight. Blight is a fungal disease that can devastate a tomato crop. In this article, we will discuss what causes blight on tomato plants and how to get rid of it.

What Causes Blight on Tomato Plants

Blight is a fungal disease that is caused by the fungus Alternaria solani. This fungus thrives in warm, moist environments, making summer the prime season for it to attack your tomato plants. It can be spread by wind and water, and can also survive in the soil for several years.

Symptoms of Blight on Tomato Plants

The first sign of blight on tomato plants is the appearance of a small, circular lesion on the leaves. These lesions will eventually turn yellow and develop a dark, concentric ring around them. As the disease progresses, the leaves will start to turn brown and curl up, and the fruit will start to rot on the vine.

How to Get Rid of Blight on Tomato Plants

The best way to get rid of blight on tomato plants is to prevent it from happening in the first place. Here are some preventative measures you can take:

Crop Rotation

One of the best ways to prevent blight is to practice crop rotation. This means planting tomatoes in a different location each year to prevent the buildup of the fungus in the soil. Alternatively, you can plant disease-resistant tomato varieties.

Watering

When watering your tomato plants, be sure to water at the base of the plant rather than on the leaves. This will help prevent moisture from collecting on the leaves and reduce the likelihood of blight.

Pruning

Regular pruning will help improve air circulation around your tomato plants, which can help prevent the buildup of moisture that can lead to blight. Be sure to remove any diseased leaves or fruit, and dispose of them properly.

Fungicides

If you do end up with blight on your tomato plants, there are fungicides that can help control the disease. Be sure to follow the instructions carefully and apply the fungicide as soon as you see signs of blight.

Conclusion

Blight can be a serious threat to your tomato plants, but with the right preventative measures and treatments, you can keep your plants healthy and productive. By practicing proper crop rotation, watering techniques, pruning, and using fungicides when necessary, you can enjoy a bountiful tomato harvest all season long.