First report of southern root-knot nematode, Meloidogyne incognita, infecting Brassica nigra in Peru

Gómez-Chatata J.A.; Tamo-Zegarra J.J.; Casa-Ruiz T.G.; Bellé C. · Journal of Nematology (2020) · DOI: 10.21307/jofnem-2020-114

Resumen

Brassica nigra plants showing symptoms caused by root-knot nematodes were detected in the municipality of La Joya, Arequipa Province, Peru. Based on morphology, esterase phenotypes, and species-specific characterized amplified region (SCAR) sequence, the causal agent was identified as Meloidogyne incognita. Pathogenicity was confirmed by a modified version of Koch’s postulates. To our knowledge, this is the first report of M. incognita infecting Brassica nigra in Peru.

Instituciones: Universidad Nacional de San Agustín de Arequipa