Horticulture/Pests and Diseases of Iris
Pests
[edit | edit source]- Melon Aphid: Aphis gossypii
- True Bulb Aphid: Dysaphis tulipae
- Potato Aphid: Macrosiphum euphorbiae
- Crescent-marked Lily Aphid: Neomyzus circumflexus
- Peach Aphid: Myzus persicae
- Florida Red Scale: Chrysomphalus aonidum
- Iris Whitefly: Aleyrodes spiraeoides
- Ground Mealybug: Rhizocecus falcifer
- Plant Bug: Lopidea confluenta
- Tobacco Thrips: Frankliniella fusca
- Iris Thrips: Iridothrips iridis
- Gladiolus Thrips: Thrips simplex
- Onion Thrips: Thrips tabaci
- Rose Thrips: Thrips major
- Lesser Bulb Fly: Enumerus tuberculatus
- Narcissus Bulb Fly: Merodon equestris
- Japanese Beetle: Popillia japonica
- Iris Weevil: Monomychus vulpeculus
- Zebra Caterpillar: Ceramica picta
- Verbena Bud Moth: Endothenia hebesana
- Iris Borer: Macronoctua onusta
- Stalk Borer: Papaipema nebris
- Bulb Mite: Rhizoglyphus echinopus
Diseases
[edit | edit source]Bacterial Leaf Spots
- Xanthomonas tardicrescens
- Alternaria iridicola
- Ascochyta iridis
- Didymellina macrospora
- Mycosphaerella
- Phyllosticta iridis
- Botrytis cinerarea
- Glomerella cingulata
- Botryotinia convoluta
- Fusarium oxysporum f. sp. gladioli
- Pellicularia rolfsii
- Sclerotinia sclerotiorum
- Mystrosporium adustum
- Penicillium
- Puccinia iridis
- Puccinia sessilis
- Iris Mosaic Virus
Other Problems
[edit | edit source]Hollow centers -- Rhizomatous Irises dies out in the center if not divided every few years.