Biblioteca do Café
URI permanente desta comunidadehttps://thoth.dti.ufv.br/handle/123456789/1
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Item Coffee leaf miner incidence and its predation by wasp in coffee intercropped with rubber trees(Editora UFLA, 2018-07) Androcioli, Humberto Godoy; Hoshino, Adriano Thibes; Menezes Júnior, Ayres de Oliveira; Morais, Heverly; Bianco, Rodolfo; Caramori, Paulo HenriqueThe coffee leaf miner (CLM) Leucoptera coffeella has a wide distribution and causes significant losses in coffee plantations (Coffea spp.) in Brazil. Its occurrence can be mitigated in intercropped systems, with the rubber tree (Hevea brasiliensis ) adapting well to the consortium, while also providing extra income to the producer. We aimed to determine whether the afforestation influences the microclimate and affects the leaf miner incidence and its predation by wasp in coffee plants intercropped with rubber trees. The study was undertaken in state of Paraná, Brazil, using coffee plants intercropped with rubber trees planted in double rows (alleys) spaced at 13, 16 and 22 m between alleys, and compared to sole cropping coffee plots. From January 2008 to November 2010, the presence of CLM’s lesions including those with signs of wasp predation was monitored in coffee plants intercropped with rubber trees and in the non-consorted coffee. A higher CLM’s incidence was verified in monoculture coffee plots, while coffee plants located under and two meters away from rubber trees had the lowest incidences. CLM’s incidence in intercropping system got higher as it increased distance from the trees. The number of lesions with signs of predation by wasps was positively correlated with the number CLM’s lesions, indicating a density-dependent predator-prey relationship. The coffee plants intercropped with alley rubber trees reduce the CLM’s occurrence and can be a management’s tactic for this economically important pest.Item Monitoramento de doenças do cafeeiro no estado do Paraná(Embrapa Café, 2013) Rocha, Leandro Miorim; Soares, André das Graças Garcia; Nitsche, Pablo Ricardo; Caramori, Paulo HenriqueEste trabalho apresenta o monitoramento de doenças do cafeeiro no estado do Paraná.Item Monitoramento de doenças do cafeeiro nas safras 2012-2013 e 2013-2014 em Londrina-PR(Embrapa Café, 2015) Santana, Fábio Juliano Castro; Rocha, Leandro Miorim; Nitsche, Pablo Ricardo; Caramori, Paulo HenriqueFoi conduzido um trabalho de campo para monitorar a ocorrência de doenças do cafeeiro na estação experimental do IAPAR, em Londrina, PR, nas safras 2012/2013 e 2013/2014. Foram avaliadas mensalmente plantas das cultivares Catuaí, Mundo Novo e IPR 106 com o objetivo de monitorar as doenças cercosporiose (Cercospora coffeicola) e ferrugem (Hemileia Vastatrix), relacionando-as com a umidade relativa e a temperatura média. Em ambas as safras a cultivar IPR 106 apresentou maior resistência à ocorrência de cercosporiose em relação às demais cultivares, sendo a cultivar Mundo Novo a que apresentou maior susceptibilidade à doença. Observou-se maior incidência de cercosporiose na safra 2013-2014, provavelmente devido a menor oferta de água que submeteu as plantas a estresse. Em relação à ferrugem percebe-se relação direta entre a temperatura do ar e sua incidência. Aumento de temperatura acarreta aumento da incidência da ferrugem. O monitoramento agrometeorológico e fitossanitário das doenças do cafeeiro é fundamental para o planejamento agrícola e as tomadas de decisão, possibilitando o uso correto e o momento adequado de aplicação de agroquímicos.