Survey of plant parasitic nematodes and banana weevil on Ensete ventricosum in Ethiopia

M. Bogale, P. R. Speijer, T. Mekete, W. Mandefro, M. Tessera, C. Gold


Twenty five sites, representative of seven agro-ecological zones of enset (Ensete ventricosum) crops, were sampled between September 1998 and January 1999. At each site, five 1-2 year old enset plants were sampled to check for the presence of nematodes present in their roots. The predominant nematode species found was Pratylenchus goodeyi (prominence value = 5640 per 100 g fresh root weight (FRW)), followed by Aphelenchoides ensete (prominence value = 137 per 100 g FRW), and Meloidogyne spp. (prominence value = 26 per 100 g FRW). Leaves of young enset plants often showed severe streak-like symptoms. Aphelencoides ensete was the only nematode isolated from these leaves and may be associated with the streak-like symptoms. A total of 71 different enset cultivar names were recorded during the survey, with different levels of P. goodeyi. Split pseudostem traps failed to detect the banana weevil, Cosmopolites sordidlus.

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