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Pterotylenchus cecidogenus n. gen., n. sp. from stem-galls of Desmodium ovalifolium Wall. in Colombia is described and illustrated. The new genus belongs to Anguinidae and is related to Orrina Brzeski, 1980 but is unique in having large vulval flaps. P. cecidogenus has females with body 0.59-0.8 ...
Diseases of Macroptilium atropurpureum cv. Siratro caused by fourteen genera of fungi, one bacterium, one virus and one genus of nematodes are described. Rhizoctonia foliar blight, common bean rust, false-rust and leaf-mottling virus are regarded as major constraints to the further use of Siratro...
During field screening from 1978 to 1981 of 121 accessions of the tropical pasture legume Stylosanthes capitata at two sites in Colombia and at Planaltina in Brazil, 94.2% of the accessions were resistant to anthracnose (caused by Colletotrichum gloeosporioides) in Colombia while 85.1% were susce...
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