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Daylily – Cultural Controls. Removal of diseased foliage Put in plastic bags or heavy yard-waste bags Handle foliage in such a way as to minimizing shaking spores loose into the air Burn, bury or dispose of to local dump in garbage bag Burning is preferred.
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Daylily – Cultural Controls • Removal of diseased foliage • Put in plastic bags or heavy yard-waste bags • Handle foliage in such a way as to minimizing shaking spores loose into the air • Burn, bury or dispose of to local dump in garbage bag • Burning is preferred. • Some say can compost as heat will kill the spores - but I wouldn’t do so • Promote leaf dryness by spacing plants well and avoiding sprinkler irrigation • Rust needs moisture for about 4 hours • Moisture trapped in clumps creates ideal environment • Divide as needed to prevent crowding • Drip Irrigation rather than sprinklers
Day Lily – Cultural Controls • Keep track of disease cycle in your yard • Keep log of when rust appears in your yard • Record rain events and temperature cycles in garden • Is there a pattern of occurrence • If you spray then what and when will target with best results • If necessary use fungicides • Will not make sick leaves better • Lesions and damage will not go away • Purpose of fungicides is to protect leaves or keep them from getting worse so must be applied as soon as rust appears • Verify that label says that is will control “Puccinia” rust diseases
Daylily Fungicides • Rotate applications from different Groups so that fungi don’t become resistant • Groups designations are made according to the active ingredients mode of action • Group 3 -Systemic • Bayleton, Strike • Group 11 – Systemic • Most effective– Most expensive • Heritage, Insignia, Compass • Group M – Contact • Least effective – Most inexpensive • M3 and M5 • These products are the ones listed as most effective by the growers • How to rotate • If only use once or twice rotation not critical issue • If you treat frequently you need to use at least two products and they must come from two different groups – 3, 11 or M
Web Sites and Credits • AHS – American Hemerocallis Society – Bulk of text content and gold dusting, snail and plant disease images • http://www.daylilies.org/index.html • Charles Milliron – Image of Mexican Explosion, Big Sis Betty and Olivia Cote • Dave’s Garden – Image of thrip flower damage • http://www.davesgarden.com • Glenn Ward – Images of Eller’s Garden and Gilded Butterfly
Web Sites and Credits • Hydro-Gardens – Spider Mite Image • http://www.hydro-gardens.com • Stout Gardens – Image of Caribbean Whipped Cream • www.stoutgardens.com • Tinker’s Gardens Daylily Database – All flower images – Image@ 2001-2010 Tinker’s Garden and/or it respective owner • http://db.tinkersgardens.com/ • The Little Green Apple – Aphid Image • http://www.thelittlegreenapple.com
Periodical Credit • “Controlling Daylily Rust” by Patricia Crooks Henley, Ph.D. Region 2, Ohio • Printed in the Fall 2008 issue of The Daylily Journal
Chattahoochee Valley Daylily Societyhttp://cvds.8k.com/ • Have members throughout the Valley area • Meet every other month – starting in January • Meet on Saturday mornings at 10:00 in the conference room at the Columbus Hospice on Moon Road • Annual Membership is $10 per person, $12 for 2 person family and $4 for youth – First Meeting - Free Daylily • Have plant shows and sales, auctions, outside speakers and tours of member and hybridizers’ gardens • Offer informative presentations on Daylily care by society members
