Rotylenchulus reniformis on Greenhouse-grown Foliage Plants: Host Range and Sources of Inoculum


  • J. L. Starr


Two sources of inoculum of reniform nematodes, Rotylenchulus reniformis, were identified for infestation of ornamental foliage plants in commercial greenhouses. These were water from a local canal system and rooted cuttings purchased from other sources. Eight ornamental plant species were identified as good hosts for the reniform nematode, with each species supporting a reniform population density equal to or greater than that supported by 'Rutgers' tomato and a reproduction factor of greater than 1.0. Nine other plant species were identified as poor hosts. Key words: Araucaria excelsia, Asparagus densiflorus sprengeri, Beaucarnea recurvata, Brassaia actinophylla, Brassaia arboicola, Chamaedorea elegans, Chlorophytum comosum variegatum, Codiaeum variegatum picture, commercial greenhouse, Dieffenbachia camille, Dieffenbachia compacta, Dracaena draco, Dizygotheca elegantissima, Ficus benjamina, Ficus elastia robusta, Ficus lyrata, Lycopersicon esculentum, ornamental foliage plants, Philodendron selloum, Radermachera sinica, reniform nematode, reproduction factor, Rotylenchulus reniformis, Sansevieria trifasciata, Spathiphyllum spp., Syngonium podophyllum albovirens.