Management of Neohydatothrips signifer Priesner (Thysanoptera: Thripidae) in yellow passion fruit (Passiflora edulis f. flavicarpa Degener) at the Huila region (Colombia)

Thrips are the main pest of the yellow passion fruit, with a potential of up to 95% damage in vegetative terminals. conventional management for this pest is focused on the use of chemical insecticides, restricting export of the fruit. This research looked at a model of integrated pest management (IP...

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Detalles Bibliográficos
Autores Principales: Monje A., Buenaventura, Delgadillo U., Danilo, Gómez C., Juan Camilo, Varón, Edgar Herney
Formato: Artículo (Article)
Lenguaje:Español (Spanish)
Publicado: Corporación Colombiana de Investigación Agropecuaria (Agrosavia) 2018
Materias:
Acceso en línea:http://hdl.handle.net/20.500.12324/33893
Descripción
Sumario:Thrips are the main pest of the yellow passion fruit, with a potential of up to 95% damage in vegetative terminals. conventional management for this pest is focused on the use of chemical insecticides, restricting export of the fruit. This research looked at a model of integrated pest management (IPM) for thrips in cultivated passion fruit on three farms in the municipality of La Plata (Huila). There were two plots; one, the IPM model with releases of Chrysoperla externa (30,000 larvae/ha), application ofplant extracts garlic + chili pepper + onion and chemical insecticides according to an action threshold; and the other, with the traditional management of the region. The strategies were evaluated and compared at the technical, environmental and economic levels. Earlier semi-confined studies showed that a field release of C.externa (30,000 larvae/ha) controlled 75.05% of the adult thrips and the mixture (2%) of the plant extracts (garlic + chili pepper + onion) 10% each controlled over 64 ± 5.4%of adults thrips.The population density of N. signifer showed significant differences between IPM (3.61 ±0.402) and the conventional (4.55 ± 0.504); the incidence of injury was not significantly different between the managements. Environmentally, the number of applications per month had significant differences between IPM (1.04 ± 0.22) and conventional (3.33 ± 0.22), this would decrease the potential negative effect on the environment. The economic factor was based on production costs and the cost/benefit ratio, which did not differ significantly between IPM and conventional.