where does tomato blight come from
Although early blight can occur in any type of weather, it favors damp conditions, like frequent rain or even heavy dews. Keep reading for more photos and descriptions of early blight's symptoms. Early blight is a common tomato disease caused by the fungus Alternaria solani.It can affect almost all parts of the tomato plants, including the leaves, stems and fruits. The plants may not die, but they will be weakened and will set fewer tomatoes than normal.Early blight generally attacks older plants, but it can also occur on seedlings. Stressed plants or plants in poor health are especially susceptible. Early blight is also a problem with potatoes.he plants may not die, but they will be weakened and will set fewer tomatoes than normal. Early blight generally attacks older plants, but it can also occur on seedlings. Stressed plants or plants in poor health are especially susceptible. Early blight is also a problem with potatoes.