大分県におけるネコブセンチュウ種の発生状況およびトマトにおける抵抗性打破個体群の検出

抄録

Species of root-knot nematodes （RKNs） from 19 fields were surveyed in Oita Prefecture, Japan. Four to 106 second-stage juveniles or female adults were collected from field soil samples and RKN species were identified individually by PCR-RFLP method. As a result, thirteen RKN populations were Meloidogyne incognita, three were M. arenaria, one was M. microcephala, one was a mixed population of M. incognita and M. hapla, and one was a mixed population of M. incognita and M. arenaria. Populations of M. incognita obtained from three tomato fields infected a RKN-resistant tomato variety.