Web blight

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Galvez E., G.E.;Mora, B.;Pastor-corrales, M.A.989. Web blight . 2. ed . In: Schwartz, H.F.; Pastor-Corrales, M.A. (eds.). Bean production problems in the tropics . Centro Internacional de Agricultura Tropical (CIAT), Cali, CO. p. 195-209.

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Abstract/Description

Web blight, caused by the fungus Thanatephorus cucumeris, is prevalent in tropical regions with high to moderate temp. and RH; more than 200 plant species serve as hosts to this pathogen. Hyphae can grow rapidly over healthy tissue of leaves, flowers, petioles, and pods. For efficient control, the use of disease-free seeds, elimination of harvest debris, crop rotation, mulching, using spaced furrows and intercropping; the use of adequate chemical products, the use of resistant var., and integrated control are also recommended. The symptoms and damage caused by the disease are illustrated in color. (CIAT)


La mustia hilachosa, causada por el hongo Thanatephorus cucumeris, prevalece en las regiones tropicales con una temp. y HR entre moderada y alta; mas de 200 especies vegetales le sirven de hospedante al patogeno. Las hifas del hongo pueden crecer rapidamente en el tejido sano de las hojas, flores, peciolos y vainas. Para un buen control se recomienda el uso de semilla libre de patogenos, la eliminacion de residuos de cosecha, rotacion de cultivos, la utilizacion de cobertura vegetal, espaciamiento entre surcos y asociaciones; tambien se recomienda el control quimico, el uso de var. resistentes y el control integrado. Se ilustran a color los sintomas y danos causados por la enfermedad. (CIAT)

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