Evaluation of pumpkin varieties for powdery mildew resistance in Batavia, NY, 2017

摘要

Ten varieties of pumpkin (Kratos, Ares, Corvette, Honky Tonk, Grey Ghost, Jack Sprat, Moonscape, Shadow Moon, Jason and Thor) were evaluated at the Cornell Vegetable Program Research Site, Batavia, NY, on a Palmyra gravelly loam soil. A randomized complete block design was used with three replications. Each plot was 6-ft wide by 10-ft long, and consisted of five hills containing two seeds per hill at 24-in spacing and planted on 1 Jun. The field site was previously fallow. Standard practices for production of pumpkin in NY were followed throughout the growing season. A pre-emergence herbicide application of Strategy (3 pt/A) was applied on 1 Jun. A post-emergence herbicide treatment of Sandea (0.5 oz/A) was also applied on 18 Jun for weed management. No irrigation was applied. Bacterial wilt and powdery mildew (local inoculum) were first detected on 3 Aug. Incidence and severity of powdery mildew and bacterial wilt were rated, and pumpkins were harvested and their yield quantified and quality assessed on 18 Sep.