All cruciferous crops are susceptible. Leafspots are round, gray to black, small to as large as a quarter, and often have a target pattern. The spots may have a velvety appearance when the pathogen produces a lot of its dark spores. Centers of lesions often break down, giving the leaf a shot-hole appearance. Symptoms are generally restricted to the tissue between the veins, although, dark streaks are often present along the veins. Accepted names of the diseases vary, depending on the host affected, but it is commonly referred to as early blight on potato and tomato, purple blotch on onion, and Alternaria spot on crucifers and cuucrbits. Alternaria leafspot is a common fungal disease caused by various species of the genus Alternaria. This disease affects a wide range of host plants and can lead to significant agricultural losses if left unchecked. · Alternaria leafspot on tomato plants, often called early blight, typically starts as small, dark brown or black spots on the lower, older leaves. These spots gradually enlarge and develop characteristic concentric rings, resembling a target or bullseye pattern. Cruciferous vegetables such as: Brussels sprouts, cabbage, broccoli, cauliflower, Chinese cabbage, rutabaga, kale, kohlrabi, turnips and sometimes radishes are said to have “Alternia Spot.“ The centers of leafspots may be coated with sooty black spore masses, and can crack or may drop out, producing shot holes. Leafspot size ranges from areas barely visible (0.1 inch or smaller diameter) to more than 2 inches in diameter. Leaf lesions can lead to premature defoliation. 1 day ago · Experience the magic of winter in Lucerne – stroll through the old town, take in the glittering views of Lake Lucerne, or unwind beneath the glow of winter lights. 4 days ago · Lucerne is one of the most beautiful cities in the world and is rich in sights. The world-famous Chapel Bridge is photo subject number 1 - everything at a glance. 2 days ago · Lucerne lies in the heart of Switzerland. Whether you arrive by bus, train, car or boat, Lucerne is well connected and easy to reach, with frequent connections to airports and railway stations. 4 days ago · The perfect setting to escape the hustle and bustle of the city for a short time. Discover the parks, gardens and natural recreation areas in Lucerne. 3 days ago · The eight-day long-distance Tell Trail passes through the picturesque Lake Lucerne Region – from Altdorf to the Brienzer Rothorn. It can be completed in eight stages and takes in glittering … The Lucerne-Interlaken Express takes you on a breathtaking journey through the imposing mountain scenery of Central Switzerland and along glittering lakes. Discover the details of the route on our map. · Discover the wide range of Advent and Christmas events in the Lucerne-Lake Lucerne Region. The Christmas platform weihnachten-luzern.ch provides information about Christmas … 4 days ago · Idyllic bays, fjord-like rock faces and deep blue water - Lake Lucerne is considered one of the most beautiful lakes in Switzerland. 2 days ago · Events in the Lucerne-Lake Lucerne Region. From cultural highlights to exciting events. Discover the calendar of events! 2 days ago · The chronicler of the town of Lucerne, Renward Cysat (1545–1614), spent years studying the history of both ancient Switzerland and Christendom and formulating a concept for the pictorial …
