As an undergraduate research assistant in the Quesada Lab at NC State University, Jack Mascarennas assisted Research Specialist Mike Adams with cucurbit disease field trials conducted for the first CucCAP project.
Insecticide rotation is key in long-term management of whiteflies. Whiteflies can transmit cucurbit leaf crumple virus and cucurbit yellow stunting disorder virus.
Researchers in Dr. Mary Hausbeck’s group at MSU have developed a highly sensitive DNA-based protocol to genetically distinguish between spores of cucumber downy mildew and hop downy mildew from spore trap samples. The enhanced sensitivity enables detection 5-10 days before symptoms appear in cucumber fields, providing a broader window for initiation of chemical control.
Downy mildew is a problem for Florida’s cucurbit farmers. The disease has been reported recently in cucumber, squash, and watermelon fields.
Anthracnose is a disease noticed on cucurbits in warm and high moisture conditions. The symptoms are noticed on leaves as necrotic lesions with or without cracked centers.
Anthracnose is rapidly becoming a major issue for growers, particularly in watermelon in the east coast.
Germplasm collections maintained by the US National Plant Germplasm System and those of other countries are critical sources of diversity utilized by breeders for crop improvement. This review summarizes status of collections and vulnerabilities for cucurbit crops.
The Cucumber, Melon, Squash, Watermelon, Genomics, and Integrated Disease mamagement teams met with project stakeholders in October 2021 to report on CucCAP grant activities and present the 2021 Annual CucCAP Team Report.