Horticulture/Pests and Diseases of Iris

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Note to Contributors:
The Pest and Disease list pages should always be included on the genus or genera page. These lists should eventually be replaced by a "troubleshooting" section. (This notice will not appear on printouts or on the including page.)

Use {{:Horticulture/Pests and Diseases of {{SUBPAGENAME}}}} to include the list below (place it just below "Pests and Diseases")

PestsEdit

Aphids

  • Melon Aphid: Aphis gossypii
  • True Bulb Aphid: Dysaphis tulipae
  • Potato Aphid: Macrosiphum euphorbiae
  • Crescent-marked Lily Aphid: Neomyzus circumflexus
  • Peach Aphid: Myzus persicae

Scales

  • Florida Red Scale: Chrysomphalus aonidum

Whiteflies

  • Iris Whitefly: Aleyrodes spiraeoides

Mealybugs

  • Ground Mealybug: Rhizocecus falcifer

Bugs

  • Plant Bug: Lopidea confluenta

Thrips

  • Tobacco Thrips: Frankliniella fusca
  • Iris Thrips: Iridothrips iridis
  • Gladiolus Thrips: Thrips simplex
  • Onion Thrips: Thrips tabaci
  • Rose Thrips: Thrips major

Maggots

  • Lesser Bulb Fly: Enumerus tuberculatus
  • Narcissus Bulb Fly: Merodon equestris

Beetles

Weevils

  • Iris Weevil: Monomychus vulpeculus

Caterpillars

  • Zebra Caterpillar: Ceramica picta
  • Verbena Bud Moth: Endothenia hebesana
  • Iris Borer: Macronoctua onusta
  • Stalk Borer: Papaipema nebris

Mites

  • Bulb Mite: Rhizoglyphus echinopus

Slugs and Snails

Voles

DiseasesEdit

Bacterial Leaf Spots

  • Xanthomonas tardicrescens

Soft Rots

  • Erwinnia carotovora

Leaf Spots

  • Alternaria iridicola
  • Ascochyta iridis
  • Didymellina macrospora
  • Mycosphaerella
  • Phyllosticta iridis

Blights

  • Botrytis cinerarea
  • Glomerella cingulata

Rots

  • Botryotinia convoluta
  • Fusarium oxysporum f. sp. gladioli
  • Pellicularia rolfsii
  • Sclerotinia sclerotiorum
  • Mystrosporium adustum
  • Penicillium

Rusts

  • Puccinia iridis
  • Puccinia sessilis

Mosaic

  • Iris Mosaic Virus

Ringspot

  • Tobacco Ringspot Virus

Nematodes

  • Ditylenchus dipsaci
  • Meliodgyne incognita
  • Pratylenchus pratensis

Other ProblemsEdit

Hollow centers -- Rhizomatous Irises dies out in the center if not divided every few years.

Last modified on 22 August 2009, at 22:15