Lina Quesada is a member of the CucCAP Extension Team and an associate professor in the Department of Entomology and Plant Pathology at NC State University.
CucCAP Disease Management Team
The Disease Management Team contributions to the CucCAP project include English and Spanish factsheets about cucurbit crop and disease management strategies including images of disease symptoms for crop producers, articles about cucurbit plant pathology, and articles about the team’s research efforts and accomplishments.
Cucumber downy mildew disease confirmed in research plot in southwest Michigan | MSU Extension Vegetables
Downy mildew on cucumber has developed in a small research plot at the Southwest Research and Extension Center in Benton Harbor, Michigan. This is the first confirmed report in Michigan in 2019.
July 24 Michigan Vegetable updates | MSU Extension Vegetables
Cucurbit downy mildew has not been reported in Michigan yet or in the Midwest, but spores were captured back in June.
Phytophthora crown rot on cucurbits and peppers requires an aggressive approach | MSU Extension Vegetables
This plant pathogen lives in the soil and survives Michigan winters. It does not move via air currents but spreads via splash of contaminated soil, surface water such as culverts, rivers, creeks and streams contaminated by run-off from infested fields, and the dumping of diseased culls onto production fields. Phytophthora is especially unique because it can develop a swimming spore when the soil becomes saturated. The swimming spores move across a field in a pattern consistent with draining water and kills plants in its path.
Cucumber downy mildew update | MSU Extension Vegetables
Downy mildew on cucumber or any other cucurbit has not been confirmed yet in 2019 in Michigan or in adjacent states of the Great Lakes region. Our molecular analysis of the spore traps has recently confirmed cucumber downy mildew spores in the air via our molecular testing a couple of times, but this has not happened frequently or to the level that might be expected if downy mildew was well established in our production areas.
The Story of Cucumbers in North Carolina | NC State Extension
Jonathan Schultheis discusses cucumber production in North Carolina in this video from NC State Cooperative Extensions Homegrown video series.
Mid-June Vegetable updates | MSU Extension Vegetables
Pickling cucumber planting delays continue. Some growers were setting aside their last sweet corn plantings to get pumpkins in last week.
Cucumber downy mildew detected in NC | NC State
Characteristic symptoms include angular, chlorotic lesions on the upper surface of cucurbit leaves and gray sporulation on the underside of the leaves. Sporangiophore structures typical of Pseudoperonospora cubensis, causal agent of CDM, can be observed using a hand lens or under a dissecting microscope.
