However, successful use of these cultivars demands the accurate identification of Meloidogyne species and races. This, in turn, depends on close collaboration between plant breeders and plant-parasitic nematologists.
Plant-parasitic nematodes are a costly burden in crop production. Omnipresent in nature, they are associated with nearly every important agricultural crop and are a significant constraint on global food security.
Root-knot and reniform (Rotylenchulus spp) nematodes cause an estimated US$2,6 billion (about R45,2 billion) worth of damage to sweet potato crops worldwide every year. In South Africa, the root-knot nematode (Meloidogyne spp), cyst nematode (Heterodera spp and Globodera spp) and lesion nematode (Pratylenchus spp) top the list of the most economically and scientifically important species due to their complex relationship with their host plants, their wide host range and the level of damage caused to the crop following infection.
WHICH CULTIVARS HOST NEMATODES?
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