Septoria is a genus of fungal plant pathogens in the phylum Ascomycota. They cause necrotic leaf spots on the leaves of their hosts, producing filiform or cylindrical conidia inside pycnidia embedded in the …

Apr 12, 2024 · Septoria leaf spot is one of the most common garden diseases. Learn how to identify, treat, and prevent septoria in tomatoes and other plants.

Septoria leaf spot is a fungal disease that affects a wide range of plants. It usually begins as small, water-soaked spots on the lower leaves of the plant and progresses into larger, circular lesions with …

Here’s everything you need to know about Septoria leaf spot on your plants. What Is Septoria Leaf Spot? Septoria leaf spot is a disease that normally affects tomatoes but can also impact plants in the …

Dec 28, 2025 · To get rid of septoria leaf spot, start by removing affected foliage, avoid overhead irrigation to keep leaves dry, and apply fungicides as needed while following good crop rotation …

Aug 22, 2025 · Septoria leaf spot can weaken and kill plants if left alone. Learn how to prevent and treat the disease.

Learn how to identify, control and prevent septoria leaf spot.

Septoria leaf spot is caused by a fungus, Septoria lycopersici. It is one of the most destructive diseases of tomato foliage and is particularly severe in areas where wet, humid weather persists for extended …

Learn to treat against Septoria and protect plants and vegetables from it. Septoria is difficult to get rid of, so do your best to prevent it altogether. Understanding the environmental conditions that trigger the …

Septoria leaf spot is a common fungal disease that can devastate tomatoes. Learn how to identify and manage this disease in your garden in this helpful factsheet.