Review the symptoms and treatment for other leaf spot diseases when diagnosing tomatoes problems. Remove susceptible weeds and volunteer tomato plants to further reduce the risk of this and other diseases. The fungus overwinters in debris in soil for several years.

Mulch the soil, water early in the day and if possible apply the water directly to the soil with a soaker hose or watering wand.Ī bit more information: Early blight is spread by wind, air and water. Properly space and stake or tower the plants to increase airflow to help reduce the risk of disease. Further reduce the risk by keeping plants healthy and properly fertilized. The name, early blight, is somewhat misleading since the disease usually occurs on mature vines. Ask your local extension service for a list of disease resistant tomatoes suited to your climate. Early blight is a fungal disease of potatoes and tomatoes. Minimize the risk by growing blight resistant or tolerant varieties. Badly infected leaves eventually turn yellow and drop. This fungus is most prevalent during warm wet weather.Įarly blight first appears as brown spots with dark concentric circles on lower leaves, then spreads up the plant.

Spraying every two weeks is a good idea, but if you have an outbreak of blight you may want to spray a couple of days in a row.To view this video please enable JavaScript, and consider upgrading to a web browser thatĮarly blight is a common tomato disease that infects the leaves, stems and fruit.

Let the peroxide solution dry before watering.

Once you’ve determined the best mixture, be sure to spray all sides of the leaves, stems, and fruit.

After touching the plant that is affected, make sure to wash your hands really well with soap and water so that it does not spread further. This could be your hands, or insects going from one plant to another. The pathogen is best known for causing the devastating Irish potato. Blight spreads really easily through touch. It is a form of Alternaria Blight that first manifests itself as irregular shaped dark. Tomato late blight is caused by the oomycete pathogen Phytophthora infestans (P. Too much hydrogen peroxide can burn the plant so starting with a lower concentration is recommended. Early Blight is the most common tomato disease in more humid areas.

Some tomato plants might need less hydrogen peroxide and some might require a higher dose. Wounds frequently develop into a bulls-eye type spot. The wounds grow and can damage an entire tomato fruit.

It causes brown wounds on foliage, stems and fruit. Early blight is cause by different fungal pathogens, notably Alternaria solani and Alternaria tomatophila. Wait 24 hours and check your plants again. There are different types of blight that attack garden-grown tomatoes. Start the mixture with 8 tablespoons and do a test spray and watch how your tomato plants react.Take 8 -12 tablespoons of hydrogen peroxide and mix it with one gallon of water in the spray container.Peroxide spray will help keep tomato blight at bay. Fungal diseases, such as early blight and Septoria leaf spot, overwinter on plant. Water – Mix in 1 gallon of water to further dilute the hydrogen peroxide. Foliar diseases of tomatoes are a common problem in the home garden.One-Gallon Spray Container – A one-gallon spray container makes applying peroxide easier and more efficient.3% Hydrogen Peroxide – Hydrogen peroxide is cheap and can be found in most grocery stores and pharmacies.This natural treatment for tomato blight involves minimal equipment and supplies.

Blight on tomatoes