Affiliation:
1. Departamento de Fitopatologia e Nematologia, Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo , Piracicaba 13418-900 , São Paulo , Brazil
Abstract
Abstract
The lesion nematode Pratylenchus jaehni occurs at low frequency in Brazilian coffee orchards but could provoke extensive root damage. Intercropping cover crops is a traditional practice in Brazilian coffee orchards, and the use of non-hosts of P. jaehni as cover crops may be a useful management method. In this work, 10 cover crops were tested concerning reproduction of P. jaehni. Cajanus cajan, Canavalia ensiformis, and Mucuna deeringiana are cover crops commonly used as intercropping in coffee orchards, but they must not be used in orchards infested with P. jaehni, because they are good hosts of this nematode. Brachiaria ruziziensis, Crotalaria juncea, Dolichos lablab, and Pennisetum glaucum were considered poor hosts. Helianthus annuus cv. Catissol and cv. Uruguai and Crotalaria spectabilis proved to be non-hosts to P. jaehni, and therefore, they are the cover crops recommended in coffee orchards infested with this nematode.
Reference34 articles.
1. Almeida, V. F., and Campos, V. P. 1991. Reprodutividade de Meloidogyne exigua em plantas antagonistas e em culturas de interesse econômico. Nematologia Brasileira 15:24–29.
2. Asmus, G. L., Inomoto, M. M., Sazaki, C. S. S., and Ferraz, M. A. 2005. Reação de algumas culturas utilizadas no sistema plantio direto a Meloidogyne incognita. Nematologia Brasileira 29:47–52.
3. Bergo, C. L., Pacheco, E. P., Mendonça, H. A., and Marinho, J. T. S. 2006. Avaliação de espécies leguminosas na formação de cafezais no segmento da agricultura familiar no Acre. Acta Amazonica 36: 19–24.
4. Bonfim, Jr., M. F., Oliveira, C. M. G., and Inomoto, M. M. 2011. Reação de porta-enxertos cítricos à população K5 de Pratylenchus jaehni. Tropical Plant Pathology 36:125–128.
5. Coolen, W. A., and D’Herde, C. J. 1972. A method for the quantitative extraction of nematodes from plant tissue. Ghent: State Nematology and Entomology Research Station.