What is Early Blight? Early Blight is a common fungal disease of tomatoes caused by the fungal organism Alternaria solani. As with most diseases, stressed plants or plants in poor health are more susceptible. This disease can also affect potatoes. The Early Blight fungus generally starts at the bottom of the plant, affecting leaves, stems, and fruits. Dark spots with concentric rings develop on the leaves, and if the fruit is affected spots begin at the stem end, forming a dark sunken area with concentric rings. How do we prevent [...]

This devastating disease can infect peppers and tomatoes. Prevention is the key, as once the disease has taken hold treatment is not effective. Bacterial leaf spot causes lesions that look like they are soaked with water. The spots usually appear on the lower leaves first, and as the disease progresses the spots are purple brown with a light brown center. When the spots appear on the peppers, they cause spotting and raised cracks, which open the fruit up to infection by other disease organisms. There are no resistant varieties and [...]

Most gardeners have experienced leaf curl on tomatoes at one time or another. It is important to understand the cause so that you can make the decision on whether it is necessary to remove the plant from the garden or not. Some causes are environmental and may be attributed to physiological conditions. When this is the case, removal of the plant is unnecessary. Leaf Roll, aka Physiological Leaf Curl, is often seen during excessively moist, cool conditions. The leaf rolls “upward” and becomes leathery in texture. Curling leaves may also [...]

I know that I am not the only one who has had this disease on their peppers. It appears in the late spring to summer when we have had frequent rainfall. Of course, if you are overhead watering, you would see it as well. Bacterial leaf spot on peppers can be a devastating disease if not caught and treated early. This is why I always preach that your garden needs to be in sight of your house so that you can check it often. This disease is often fatal once [...]