[Maladies des ignames tropicales (Dioscorea spp.) rencontrées au champ et leur controle a Puerto Rico]

For the last 5 years, we have studied yam diseases and their control in Puerto Rico. Damaging diseases occurring on yams from planting to harvest include: seed-tuber rot (Penicillium spp., Fusarium oxysporum and F. solani) root rot (F. oxysporum) and Pythium sp., stem basal canker (F. oxysporum), vascular wilt (F. oxysporum), virus (shoe string and mosaic viruses), anthracnose (Colletotrichum gloeosporioides), leaf spots (Curvularia eragrostidis, C. geniculata, and Cercospora sp.), scorch (unknown etiology), rectangular leaf spot (Aphelenchoides ritzemabosi) and stem blight (Botryodiplodia theobromae), Penicillium spp., Fusarium spp., Curvularia spp., Pythium sp., C. gloeosporioides were all found tuberborne inhabiting either the cortex or deeper internal tissues. For controlling these diseases we tested a range of practices and their integration. These include chemical control, use of varietal resistance, and cultural practices. The authors will describe the symptomatology, etiology, epidemiology, and control of these yam diseases

Bibliographic Details

Main Authors:	125039 Torres L, R., 77045 Hepperly, P.R., 108656 Ramos B, D., 94168 Mignucci, J., 61806 Degras, L. ed., 11005 Institut National de la Recherche Agronomique, Paris (Francia), 33915 7. Symposium of the International Society for Tropical Root Crops Gosier (Guadalupe) 1-6 Jul 1985
Format:	biblioteca
Published:	Paris (Francia) 1988
Subjects:	ENFERMEDADES DE LAS PLANTAS, ENFERMEDADES FUNGOSAS, VIROSIS, DIOSCOREA, PENICILLIUM, FUSARIUM, PYTHIUM, COLLETOTRICHUM, CURVULARIA, CERCOSPORA, APHELENCHOIDES, BOTRYODIPLODIA, SINTOMAS DE ENFERMEDADES (PLANTAS), ETIOLOGIA, EPIDEMIOLOGIA, CONTROL DE ENFERMEDADES, RESISTENCIA A LA ENFERMEDAD, PUERTO RICO,
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