Transcript Daylily – Cultural Controls

 Removal of diseased foliage
 Put in plastic bags or
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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
 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
 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
 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
 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
 “Controlling Daylily Rust” by Patricia Crooks Henley,
Ph.D. Region 2, Ohio
 Printed in the Fall 2008 issue of The Daylily Journal
 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