Host Status of Herbaceous Perennials to Meloidogyne incognita and M. arenaria
AbstractTwenty-two different herbaceous perennials were studied for their reaction to separate inoculations of Meloidogyne arenaria and M. incognita under greenhouse conditions. Perennial taxa that did not develop root-galls following inoculation, and therefore are considered as nonhosts of both nematode species, included species and cultivars of Aethionema, Fragaria, Phlox, and Polygonum. Echinacea, Monarda, and Patrinia developed only a few galls. Root-galls developed on species and cultivars of Achillea, Geranium, Heuchera, Heucherella, Linaria, Nepeta, Nierembergia, Penstemon, and Salvia. There was no difference in the number of root-galls caused by M. arenaria or M. incognita on most plants except for Penstemon cultivars. Plant heights and dry weights varied between species and nematode density,. Key words: Meloidogyne arenaria, Meloidogyne incognita, nematode, ornamentals, resistance, susceptibility.
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