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Video Q&A ViewAttendees 1

Plant-Insect Ecosystems

Section Symposium

Ecology, Epidemiology, and Management of Whiteflies and Whitefly-transmitted Viruses On-Demand Presentations

Cucurbita germplasm with resistance to whitefly-transmitted viruses

On-Demand

Presenting Author(s)

Cecilia McGregor

Associate Professor
University of Georgia
Athens, Georgia

Co-author(s)

AL

Alexander Luckew

University of Georgia, Georgia
GM

Geoffrey Meru

University of Florida
Homestead, Florida

Co-Author(s)

MP

Mathews Paret, n/a

Associate Professor Plant Pathology (Vegetables and Ornamentals)
The University of Florida - North Florida Research and Education Center
Quincy, Florida

Co-author(s)

RM

Rodrick Mwatuwa

University of Florida

Co-Author(s)

RC

Renato Carvalho

University of Florida
Gainesvillw, Florida
MK

Melanie Kalischuk

University of Guelph

Co-author(s)

Ad

Andre da Silva

Assistant Professor
Auburn University
Auburn, Alabama

Co-Author(s)

JC

Joara Candian

University of Georgia
Tifton, Georgia

Co-author(s)

BD

Bhabesh Dutta

Associate Professor
University of Georgia
Tifton, Georgia
Rajagopalbabu Srinivasan

Professor
University of Georgia
Griffin, Georgia

Summer squash (Cucurbita pepo) is very susceptible to whitefly transmitted virus complexes leading to severe yield losses during Fall production. The use of resistant cultivars is one of the most effective methods to reduce crop losses due to pests and diseases. In this study, we evaluated Cucurbita germplasm from the USDA germplasm collection for resistance or tolerance to Cucurbit leaf crumple virus (CuLCrV) and Cucurbit Yellow Stunting Disorder Virus (CYSDV) over two years in Georgia and Florida. A combination of visual disease severity scores and molecular methods were used to evaluate the germplasm. High levels of resistance were observed in several C. moschata accessions, while intermediate levels of resistance were observed on two C. pepoaccessions. The identified accessions are potential sources for breeding efforts to improve resistance to whitefly transmitted virus complexes in summer squash.