Cucumber downy mildew, caused by the oomycete pathogen Pseudoperonospora cubensis, has been found in a commercial cucumber field in Johnston County. The first report in North Carolina was made on June 8 of 2020 on a related post with management information. Approximately 25% of the field was infected at 40% disease severity. The recent rains […]
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The cucumber line WI2757 has been an important sources of disease resistances for cucumber breeding, but it has some drawbacks including later flowering and poor growth under field conditions. The genetic basis for these traits is not known. CucCAP researchers conducted molecular mapping using populations involving WI2757, and uncovered a large paracentric inversion of about 10 megabases in length on cucumber chromosome 1 of WI2757. They found that inversion region harbors genes or quantitative trait loci for fruit length, diameter, fruit shape, fruit number, and flowering time.
A valuable resource available to cucurbit growers on the CucCAP website is the Cucurbit Downy Mildew ipmPIPE Pest Information Platform for Extension and Education. The CDM ipmPipe is hosted at NC State University. This website was recently updated and forecasting for the 2020 growing season will begin in late March or early April. The site indicates that CDM […]
CucCAP Vegetable Pathology and Crop Production Extension Specialists published plant disease management reports and Cucurbit cultigen evaluations from recent field trials. These reports provide valuable information for cucurbit crop producers, seed companies and other CucCAP stakeholders.
Crops: Orange Flesh Melon, Pumpkin, Watermelon, and Zucchini squash
Evaluations include control of Downy mildew on cucumber, Downy mildew on squash and Phytophthora fruit rot on squash
The CucCAP website provides links to resources for Cucurbit genomic scientists and plant breeders including the Cucurbit Genomics Database and the Cucurbit genetics cooperative. Between 2015 and 2020, the CucCAP team published more than 92 refereed research publications. During this time, the scientists made over 149 presentations at universities and scientific conferences. Continue Reading Resources for Cucurbit disease management […]