During the last decade, the importance of this group of plants has increased dramatically, and with it, additional attention to diseases has followed. This meant disease surveys carried out during recent years have resulted in uncovering many new pathogen problems. From the table below, the large number and selection of host plants in this group and pathogens can be seen.

A few specific examples include cumin wilt, which has been successfully managed by the use of fungicidal seed dressings, reducing infection by more than 50%. Wilt disease in gladiolus and dipping corms in a set of fungicides has dramatically controlled iris. The survival increase of plants was 300 to 500% over check treatments. Lastly, rosette plants are another example where the use of seed disinfectants to control soilborne diseases reduced disease up to 80% depending on the season and level of soil contamination.

Host Plant	Disease	Pathogen
Anise and Caraway	Root Rot and Wilt	Fusarium sp. Rhizoctonia solani Pythium sp. Macrophomina phaseolina
Basil	Root Rot and Wilt	Fusarium solani Rhizoctonia solani
Carnation	Root Rot and Wilt	Phytophthora nicotianae Phialophora cineresens Phythium sp. Macrophomina phaseolina
Coriander	Root Rot and Wilt Leaf and Flower Blight	Fusarium sp. Rhizoctonia solani Phythium sp. Macrophomina phaseolina Alternaria Curvularia sp.
Cumin	Root Rot and Wilt	Fusarium sp. Rhizoctonia solani Phythium sp. Macrophomina phaseolina Phytophthora sp.
Dahlia	Basal Stem Rot Southern Blight Powdery Mildew	Fusarium sp. Rhizoctonia solani Macrophomina phaseolina Sclerotium rolfsii Sclerotium rolfsii Erysiphe cichoracearum
Fennel	Root Rot and Wilt White Rot Bacterial Wilt	Fusarium sp. Rhizoctonia solani Phythium sp. Macrophomina phaseolina Sclerothinia Sclerotiorum Pseudomonas sp.

Gladiolus	Root Rot and Wilt Neck and Root Rot Southern Blight Curvularia Corm Rot Sclerotinia Dry Rot Root Knot Nematode	Fusarium equiseti Fusarium moniliforme Macrophomina phaseolina Pythium sp. Rhizoctonia solani Sclerotium rolfsii Curvularia trifolii Sclerotinia gladioli Meloidogyne sp.
Indoor Ornamental Plants (dracena, ficus, pothos, scheflera, poinsetta, yucca)	Root Rot and Wilt	Fusarium sp. Rhizoctonia solani Macrophomina phaseolina
Iris	Basal Rot Crown Rot Neck Rot Sclerotinia Rot Blue Mold Rhizopus Rot Root Knot Nematode	Fusarium oxysporum Sclerotium rolfsii Rhizoctonia solani Sclerotinia solani Penicillium gladioli Rhizopus arrhizus Meloidogyne sp.
Jasmine	Root Rot Basal Stem Rot & Wilt	Fusarium sp. Fusarium sp.
Loofa	Root Rot and Wilt Leaf Spot Fruit Rot	Fusarium spp. Rhizoctonia solani Pythium spp. Alternaria spp. Botryodiplodia sp. Fusarium semitectum Pythium sp.
Marjoram	Root Rot and Wilt	Fusarium sp. (new species) Rhizoctonia solani Pythium sp. Macrophomina phaseolina Botryodiplodia palmarum Verticilium dahliae
Narcissus	Basal Rot	Fusarium oxysporum

Roselle	Foot Rot, Root Rot and Wilt Crown Gall	Fusarium equiseti Rhizoctonia solani Macrophomina phaseolina Phytophthora parasitica Agrobacterium tumefaciens
Scheflera	Root Knot Nematode	Meloidogyne sp.
Tagetes	Root Rot and Wilt	Fusarium sp.
Tulip	Basal Rot Blue Mold	Fusarium oxysporum Penicillium sp.

Violet	Root Rot and Wilt	Fusarium sp. Rhizoctonia solani Pythium sp.
Zinnia	Root Rot and Wilt	Fusarium sp. Erysiphe cichoracearum