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Lenne, J.M.Calderón, M.Valles, CR[Metodologias para la evaluacion de enfermedades y plagas en forrajeras tropicales]Metodologias para la evaluacion de enfermedades y plagas en forrajeras tropicales
Lenne, J.M.Hernández Romero, Luis Alfredo[Primer registro de pudricion carbonosa de Stylosanthes guianesis en Colombia]Primer registro de pudricion carbonosa de Stylosanthes guianesis en Colombia
Autor: Lenne, J.M.

Native populations of Stylosanthes capitata, a promising perennial pasture legume in tropical America, were evaluated for their reaction to a virulent widespread race of Colletotrichum gloeosporioides. Considerable variation in anthracnose reaction among progenies from individual plants, among pl...


Lenne, J.M.[Variation in reaction to anthracnose within native Stylosanthes capitata populations in Minas Gerais, Brazil]Variation in reaction to anthracnose within native Stylosanthes capitata populations in Minas Gerais, Brazil

Desmodium wart, caused by Synchytrium desmodii, severely reduced soil seed reserves, seedling survival, and recruitment of adult plants of Desmodium ovalifolium ‘CIAT 350’ to the pasture sward from 1985 to 1988 at Carimagua in the eastern plains of Colombia. Under nonflooded conditions, wart did ...


Lenne, J.M.Torres, C.García, C.[Effect of wart disease on survival and yield of the tropical pasture legume Desmodium ovalifolium]Effect of wart disease on survival and yield of the tropical pasture legume Desmodium ovalifolium

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...


Lenne, J.M.Thomas, D.Andrade, Ronaldo P. deVargas, A.[Anthracnose of Stylosanthes capitata: Implications for future disease evaluations of indigenous tropical pasture legumes]Anthracnose of Stylosanthes capitata: Implications for future disease evaluations of indigenous tropical pasture legumes
Moreno, J.Torres, C.Lenne, J.M.[Evaluation of diseases of Leucaena species in the Cauca Valley, Colombia]Evaluation of diseases of Leucaena species in the Cauca Valley, Colombia

A previously undescribed leaf spot of Centrosema spp. in Colombia and Costa Rica was found to be caused by Cylindrocladium colhounii. Symptoms included irregular, zonate, brown leaf spots, 10–30 mm in diameter; chlorosis; and defoliation. Pastures of Centrosema acutifolium cv. Vichada in the east...


Lenne, J.M.Vargas de Alvarez, A.[Leaf spot of Centrosema species caused by Cylindrocladium colhounii]Leaf spot of Centrosema species caused by Cylindrocladium colhounii

Toledo, José M.Lenne, J.M.Schultze-Kraft, Rainer[Effective utilization of tropical pasture germplasm]Effective utilization of tropical pasture germplasm

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