Main nematofauna associated with beans (Phaseolus vulgaris, L) in Las Tunas

Abstract

In order to know the species of nematodes present, their population levels and frequency of appearance in bean cultivation, in the province of Las Tunas, samplings were carried out in fields planted in Manatí, Puerto Padre, Jesús Menéndez, Las Tunas and Jobabo, from January 2015 to March 2020. The soil and root samples were analyzed in the Nematology section of the Provincial Plant Health Laboratory by the established procedures. Five species of nematodes were identified with the use of different taxonomic keys: Aphelenchus sp., Meloidogyne incognita (Kofoid and White) Chitwood, Meloidogyne sp., Tylenchus sp., and Xiphinema sp. No cysthogenic, nematodes were observed, nor were they of quarantine interest for Cuba. M. incognita was the species with the highest frequency of appearance in soil and roots and the most abundant. Xiphinema sp., was only identified in the soil of the cultivar Velazco Largo. The cultivar Delicia and Buenaventura was where the greatest diversity of nematode species and the largest populations of M. incognita were observed.