Data/hora: 15/06/2024 04:24:18

Biblioteca(s): 	Embrapa Acre.	
Data corrente: 	26/11/2013	
Data da última atualização: 	06/07/2021	
Autoria: 	RIGHI, C. A.; CAMPOE, O. C.; BERNARDES, M. S.; LUNZ, A. M. P.; PIEDADE, S. M. S.; PEREIRA, C. R.	
Afiliação: 	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.	
Ano de publicação: 	2013	
Fonte/Imprenta: 	Agroforestry Systems, Columbia, v. 87, n. 6, p. 1351-1362, Dec. 2013.	
ISSN: 	0167-4366 (Print) / 1572-9680 (Online)	
DOI: 	10.1007/s10457-013-9642-9	
Idioma: 	Inglês	
Notas: 	Published online: 5 October 2013.	
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.	
Palavras-Chave: 	Agroforestería; Coffee; Cultivo mixto; Minador de las hojas; Plagas de plantas; Rubber tree; Sistema Agroflorestal (SAF); Sistemas de sombra.	
Thesagro: 	Agrossilvicultura; Bicho mineiro; Cafe; Caucho; Coffea arábica; Consorciação de cultura; Cultivo Continuo; Hevea; Leucoptera coffeella; Monocultura; Performance; Perileucoptera Coffeella; Praga de planta; Seringueira; Sombreamento.	
Thesaurus Nal: 	Agroforestry; Continuous cropping; Leafminers; Mixed cropping; Plant pests; Shade agroforestry systems.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/93218/1/24770.pdf	
Registro original: 	Embrapa Acre (CPAF-AC)	
Exemplares: 	CPAF-AC - (24770-1) - UPC - AP - DD -  -  -  - DIS