Editing Lilium (section)

===Pests and diseases===
[[File:Scarlet lily beetle lilioceris lilii.jpg|thumb|Scarlet lily beetles, [[Oxfordshire]], UK]]
[[Aphids]] may infest plants. [[Tipuloidea|Leatherjackets]] feed on the roots. [[Larva]]e of the [[Scarlet lily beetle]] can cause serious damage to the stems and leaves.  The scarlet beetle lays its eggs and completes its life cycle only on true lilies (''Lilium'') and fritillaries (''[[Fritillaria]]'').<ref>{{cite web |title=Lily beetle |work=RHS Gardening |publisher=[[Royal Horticultural Society]] |url=https://www.rhs.org.uk/advice/profile?pid=553 |access-date=2014-08-21 |archive-date=2014-08-21 |archive-url=https://web.archive.org/web/20140821195228/https://www.rhs.org.uk/advice/profile?pid=553 |url-status=dead }}</ref>  Oriental, rubrum, tiger and trumpet lilies as well as Oriental trumpets (orienpets) and Turk's cap lilies and native North American ''Lilium'' species are all vulnerable, but the beetle prefers some types over others.  The beetle could also be having an effect on native Canadian species and some rare and endangered species found in northeastern North America.<ref>{{cite web|last=Whitman|first=Ann|title=Controlling Lily Leaf Beetles|url=http://www.gardeners.com/lily-beetle/8090,default,pg.html|publisher=Gardener's Supply Company|access-date=2014-02-18|archive-date=2014-02-22|archive-url=https://web.archive.org/web/20140222130935/http://www.gardeners.com/lily-beetle/8090,default,pg.html|url-status=dead}}</ref> Daylilies (''Hemerocallis'', not true lilies) are excluded from this category. Plants can suffer from damage caused by mice, deer and squirrels.  Slugs,<ref>{{Cite book |last1=Adams |first1=Charles |url=https://books.google.com/books?id=h449BAAAQBAJ&pg=PA230 |title=Principles of Horticulture: Level 2 |last2=Early |first2=Mike |last3=Brook |first3=Jane |last4=Bamford |first4=Katherine |date=2014-08-07 |publisher=Routledge |isbn=978-1-317-93777-7 }}</ref> snails and millipedes attack seedlings, leaves and flowers.

Brown spots on damp leaves may signal an infection of ''[[Botrytis elliptica]]'', also known as Lily blight, lily fire, and botrytis leaf blight.<ref>{{Cite book |last1=George |first1=Raymond A. T. |url=https://books.google.com/books?id=32_HBgAAQBAJ&pg=PA375 |title=Diseases of Temperate Horticultural Plants |last2=Fox |first2=Roland T. V. |date=2014-11-21 |publisher=CABI |isbn=978-1-84593-773-7 |language=en}}</ref> Various viral diseases can cause mottling of leaves and stunting of growth, including lily curl stripe, ringspot, and lily rosette virus.<ref>{{Cite book |last=Smith |first=Kenneth M. |author-link=Kenneth Manley Smith |url=https://books.google.com/books?id=6KZkRmlQHN8C&pg=PA315 |title=A Textbook of Plant Virus Diseases |date=2012-12-02 |publisher=Elsevier |isbn=978-0-323-16205-0 }}</ref>