Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/972252
Unidade da Embrapa/Coleção:: Embrapa Acre - Artigo em periódico indexado (ALICE)
Data do documento: 26-Nov-2013
Tipo do Material: Artigo em periódico indexado (ALICE)
Autoria: RIGHI, C. A.
CAMPOE, O. C.
BERNARDES, M. S.
LUNZ, A. M. P.
PIEDADE, S. M. S.
PEREIRA, C. R.
Informaçães Adicionais: Ciro Abbud Righi, ESALQ; Otavio Camargo Campoe, IPEF; Marcos Silveira Bernardes, ESALQ; AURENY MARIA PEREIRA LUNZ, CPAF-AC; Sonia Maria Stefano Piedade, ESALQ; Carlos Rodrigues Pereira, ESALQ.
Título: Infuence of rubber trees on leaf-miner damage to coffee plants in an agroforestry system.
Edição: 2013
Fonte/Imprenta: Agroforestry Systems, Columbia, v. 87, n. 6, p. 1351-1362, Dec. 2013.
Idioma: en
Notas: Published online: 5 October 2013.
Palavras-chave: Sistema Agroflorestal (SAF)
Coffee
Rubber tree
Agroforestería
Cultivo mixto
Sistemas de sombra.
Plagas de plantas
Minador de las hojas
Conteúdo: The coffee leaf-miner (CLM) (Leucoptera coffeella Guérin-Mèneville; Lepidoptera: Lyonetiidae), the main pest of coffee plants, occurs widely throughout the Neotropics where it has a significant, negative economic and quantitative impact on coffee production. This study was conducted in a rubber tree/coffee plant interface that was influenced by the trees to a varying degrees depending on the location of the coffee plants, i.e. from beneath the rubber trees, extending through a range of distances from the edge of the tree plantation to end in a coffee monocrop field. The most severe damage inflicted on coffee plants by the CLM (number of mined leaves) from April, which marks the start of the water deficit period, until September 2003 was in the zone close to the rubber trees, whereas the damage inflicted on plants in the monocropped field was comparable to that on coffee plants grown directly beneath the rubber trees, which received about 25-40 % of the available irradiance (Ir-available irradiation at a certain position divided by the irradiation received in full sunlight, i.e. in the monocrop). From May until July damage caused by the CLM nearly doubled in each month. In midwinter (July), the damage decreased perceptibly from the tree edge toward the open field. From September onward, with the rising air temperatures CLM damage in the coffee monocrop started to increase. Based on these results, we conclude that coffee plants grown in the full sun incurred the most damage only at the end of winter, with warming air temperatures. Coffee plants grown in shadier locations (25-40 % Ir) were less damaged by the CLM, although a higher proportion of their leaves were mined. The rubber trees probably acted as a shelter during the cold autumn and winter seasons, leading to greater CLM damage over a distance outside the rubber tree plantation that was about equal to the height of the trees. Future studies should attempt to relate leaf hydric potential to pest attack in field conditions. More rigorous measurements of shade conditions could improve our understanding of the relationship of this factor to CLM attack.
Thesagro: Agrossilvicultura
Praga de planta
Cafe
Coffea arábica
Monocultura
Consorciação de cultura
Seringueira
Hevea
Sombreamento
Bicho mineiro
Leucoptera coffeella
Performance
Caucho
Cultivo Continuo
Perileucoptera Coffeella.
NAL Thesaurus: Agroforestry
Plant pests
Leafminers
Continuous cropping
Mixed cropping
Shade agroforestry systems.
Ano de Publicação: 2013
ISSN: 0167-4366 (Print) / 1572-9680 (Online)
Aparece nas coleções:Artigo em periódico indexado (CPAF-AC)

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