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ARS Home » Southeast Area » Poplarville, Mississippi » Southern Horticultural Research » Research » Publications at this Location » Publication #307173

Research Project: Small Fruit and Ornamental Genetic Research for the Mid-South

Location: Southern Horticultural Research

Title: Preliminary evaluation of daylily cultivars for rust resistance in a landscaping setting

item BLYTHE, EUGENE - Mississippi State University
item Pounders Jr, Cecil
item ANDERSON, MICHAEL - Mississippi State University

Submitted to: Southern Nursery Association Research Conference
Publication Type: Proceedings
Publication Acceptance Date: 6/16/2014
Publication Date: 7/23/2014
Citation: Blythe, E.K., Pounders Jr, C.T., Anderson, M. 2014. Preliminary evaluation of daylily cultivars for rust resistance in a landscaping setting. Southern Nursery Association Research Conference. 59th Annu. Rpt. p.138-142.

Interpretive Summary:

Technical Abstract: A large, established landscape collection of 575 newer cultivars was evaluated for daylily rust which had not been sprayed with fungicides to prevent infection during 2013. The warm, damp summer of 2013 was ideal for spread of daylily rust. A total of 119 of the 575 cultivars received a median rating of 1 or 1.5, indicating the possibility of rust resistance; however, some of these cultivars may be more susceptible to the disease than a single-clump rating might reveal. These cultivars are worthy of continued evaluation for resistance to daylily rust. Use of rust-resistant daylily cultivars in the landscape can help to reduce the time and expense involved in repeatedly spraying daylilies to prevent rust.