There are three leaf spot diseases commonly found on garden tomatoes in Minnesota: Septoria leaf spot, early blight and bacterial spot. Young tomato plant with leaf spot disease on lower leaves At the ...

Pepper leaves have small (less than 1/8 inch), brown, circular spots that do not have a yellow halo and centers do not fall out. Small, brown, circular spots may also occur on stems and the fruit ...

The Late blight fungus can also cause significant losses in tomato plantings. The disease will first appear as greasy-grayish indefinite patches on older leaves and stems. These spots enlarge during ...

Two common leaf-spot diseases will likely appear on tomato plants soon if they haven’t already. Septoria leaf spot and early blight are both characterized by brown spots on the leaves.