Leaf miner incidence in coffee plants under different drip irrigation regimes and planting densities

Pesquisa Agropecuária Brasileira

Gleice Aparecida Assis²  Franscinely Aparecida Assis¹  Myriane Stella Scalco²  Francisco José Toloza Parolin¹  Iraci Fidelis²  Jair Campos Moraes¹  Rubens José Guimarães² 

[1] ,Universidade Federal de Lavras Departamento de Agricultura Lavras MG

关键词: Coffea arabica;    Leucoptera coffeella;    irrigation;    spacing;    weather factors;    Coffea arabica;    Leucoptera coffeella;    irrigação;    espaçamento;    fatores meteorológicos;   

DOI  :  10.1590/S0100-204X2012000200002

来源: SciELO

【 摘 要 】

The objective of this work was to evaluate the effect of different drip irrigation regimes and planting densities on the incidence of the leaf miner, Leucoptera coffeella, in arabica coffee plants for one year. The experiment was carried out in 2008, in a complete randomized block design, in a split-plot in time arrangement, with four replicates. The treatments consisted of four drip irrigation regimes - soil water balance, irrigations at 20 and 60 kPa soil tensions, and a nonirrigated treatment -, which were distributed at three plant densities: 2, 500, 5, 000, and 10, 000 plants per hectare. The evaluations were made on a monthly basis between January and December 2008. The highest pest occurrence period was from August to November, a season with low-air relative humidity preceded by a drought period. Irrigated coffee plants showed an incidence of intact mines 2.2 times lower than that of nonirrigated plants. Irrigation and increasing of plant density contribute to the reduction of coffee leaf miner occurrence.

【 授权许可】

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