Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.
How to identify Early Blight
Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown in color and form concentric rings, or a
bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, [url=https://www.yummyseeds.com.hk/page.php?type=4&lang= ...