anthracnose resistant cucumbers

to the most recent issue of Cornell Vegetable Recommends for registered Slicing Cucumbers Varieties: • Dasher II. Charleston gray watermelon and Calypso cucumber are also highly-resistant. The microscopic stalks produce the conidia, which Many pickling cucumbers are tolerant or resistant, including Score and Premier. Information Bulletins relating to that crop. 1. Spread by wash water on harvested fruit is important when cucumbers or melons are cleaned before packing. Squash and pumpkins, however, are primarily immune to the disease. A&T State University, in all 100 counties and with the Eastern Band of Cherokee On watermelon foliage the spots are irregular and turn dark brown Colletotrichum lagenarium). UC Management Guidelines for Anthracnose on Cucurbits. Found mainly in the eastern United States, the disease causes "dark, water soaked lesions on stems, leaves or … Slicing type cucumber. CMV, DM, PM, S. Cool, crisp flesh and great flavor. The disease is common in North Carolina. Anthracnose is a fungal disease that affects plants by forming dead areas on leaves and fruit. vine crops with unrelated crops in a three-year rotation. Plant Disease Clinic, Link In those years when rainfall is above normal, conditions are such that a disease epidemic can develop. Cantaloupe, squash, and pumpkin are less susceptible to anthracnose but occasionally the disease causes losses on the fruit. Growers should inspect transplant seedlings carefully for this disease upon delivery. The grafting onto uninoculated resistant cultivars but it was transmitted if the "signal" for induced systemic resistance is not cultivar-, genus-, or species- Diseases such as anthracnose, however, have been much more severe in late summer planted cucumbers. The symptoms of anthracnose vary somewhat on different hosts. Significant damage can occur to cucumber, muskmelon, and watermelon unless resistant varieties are … manage anthracnose. Choose anthracnose-resistant varieties if at all possible. In cucumbers, this disease is fostered by seasons of warm temperatures combined with frequent rain. Figure 6. slicers include Dasher II, Slicemaster, and Poinsett 76. The spores depend upon water for spread and infection. Slicing cucumbers should be picked when diameter is approximately 2”. Resistant to downy mildew, powdery mildew, angular leaf spot, anthracnose, scab and cucumber mosaic virus: Squash, summer: Multipik: This yellow-fruited variety does not show greening of fruit caused by viruses (CMV, WMV) Watermelon: Charleston Gray Crimson Sweet Jubilee II Starbrite Tiger Baby: All of these varieties have some resistance to anthracnose and Fusarium wilt. NEW YORK STATE • CORNELL UNIVERSITY. Choose anthracnose-resistant varieties if at all possible. Example products for anthracnose control: This factsheet was prepared by the NCSU Vegetable Pathology Lab in 2013. Fungicides are not usually profitable for anthracnose control on watermelons and spring planted cucumbers when other control practices, such as crop rotation and resistant cultivars, are used. NC State University and NC Cucumber leaf with lesions caused by the anthracnose fungus. circular spots. a vegetable from the pull-down menu below to get a listing of Fact Sheets and If overhead irrigation is necessary, irrigate in the early morning so the foliage will dry before nightfall. Cooperative Extension county center. or black (figure 1). lined with microscopic stalks. Most cultivars of honeydew melon are very susceptible and this disease is a limiting factor in melon production in the eastern United States. As long as the tendrils remain dry, the 2. Harvest every other day. Cooperative Extension is based at North Carolina's two land-grant institutions, Mexican Gherkin Cucumber Rotate lesions are produced on muskmelon (figure 6) and cucumber. Anthracnose symptoms occur on all aboveground parts of cucumber plants. 3. Plant disease-resistant varieties. Resistant varieties: Using resistant varieties is the first and most effective way to manage anthracnose of cucumber. Losses have been greatest on watermelon, muskmelon, cucumber, gourds, and to a lesser extent on West Indian gherkin and chayote. This The fungus can affect the leaves, stems, petioles and fruit of cucurbitae. Cucumber seedling with anthracnose symptoms. include Charleston Gray, All Sweet, Crimson Sweet, and Dixielee. to Photo Gallery of Anthracnose of Cucurbits for additional photos, For Anthracnose, caused by the fungus Colletotrichum lagenarium, is a destructive 13 mm) in diameter and up to 1/4 in. being considered optimum. and then rain drops splash them several feet. They are usually planted in late July or early August when the temperature is most favorable for the fungus. Alternaria leaf blight on watermelon. commitment to diversity. It is important to grow resistant varieties to reduce the chance of anthracnose infection. Many pickling cucumbers BW - Bacterial Wilt Resistant Cucumbers. Late summer cucumbers are exposed to more fungus spores and have increased chances of becoming infected. Resistance to anthracnose in susceptible cucumber was not transmitted by against anthracnose by inoculating the rootstocks with C. lagenarium. Ashley. Greenhouse-grown transplants should be inspected regularly for anthracnose symptoms. It can attack many different types of plants, from grasses to flowering trees such as dogwood. N.C. the fungus releases airborne spores (conidia) that infect vines and foliage. Figure 1. fungus depends on wetness and fairly high temperatures, 75°F (24°C) Vines with anthracnose infection Preventing and managing the disease. Figure 9. Anthracnose, caused by the fungus Colletotrichum lagenariumi, is probably the most destructive disease of cucurbits or vine crops in warm seasons with frequent rains. All The fungus can be seed-borne and this is often the source of primary inoculum. Resistant cucumber slicers include ‘Intimidator,’ ‘Speedway,’ ‘Dasher II,’ ‘General Lee, ’and Marketmore. An infection in the seed means that the plant, when it grows, will suffer from anthracnose. Small, growing leaves may be distorted and severe spotting may cause entire leaves to blight (Figure 4). Similar symptoms appear on the leaves; initial symptoms can have water-soaked appearance and be vein delimited and angular similar to angular leaf spot or downy mildew (Fig… additional photos Link to the Anthracnose of Cucurbits Photo Gallery, Listing Anthracnose caused by Glomerella cingulata is one of the most devastating diseases of strawberry in Japan, particularly during its nursery period in the summer.