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Revista Colombiana de Entomología

Print version ISSN 0120-0488
On-line version ISSN 2665-4385

Abstract

AREVALO P, EMILIO; QUINTERO F, OMAIRA X  and  CORREA L, GUILLERMO. Survey of thrips (Insecta: Thysanoptera) in flower crops at three localities of the municipality of Medellín, Antioquia (Colombia). Rev. Colomb. Entomol. [online]. 2003, vol.29, n.2, pp.169-175. ISSN 0120-0488.

In the Colombian Flower Agriculture, thrips represent one of the greatest plant health problerns, not only because of the direct damage that they cause, but also because some of them are vectors of diseases. Qiven that, the flower growers in the Medellin municipality lack information about these insects, this project was proposed to provided knowledge of thrips species, plants associated with them, and their spatial distribution. We used a sample of 29 ornamental species located in 56 farms. Specimens of thrips were collected directly from the plants for their later identification. The processing of the samples and their identification was performed at the laboratory of diagnosis of ICA Tulio Ospina. The species identified were: Anaphothrips obscurus Müller, Frankliniella insularis Franklin, Frankliniella nr. citripes, Frankliniella occidentalis Pergande, Frankliniella panamensis Hood, rieohydatothrips signifer Priesner, Psectothrips palmerae, Thrips australis Bagnall, Thrips palmi Karny, Thrips simplex Morison, and Thrips tabaci Lindeman. Specimens of four species were collected and have been identified at the level of genera: Frankliniella sp. 1., rieohydatothrips sp. 1., Scirtothrips sp. 1. and Thrips sp.l. In relation to the sampled plant organ, we observed that 80% of thrips were gathered from the flowers. The greatest trips populations were found in pompón (Chrysanthemum sp.) and in áster (Áster sp.). F occidentalis (the western flower thrips ) was found to be the most abundant species of thrips and the one with the widest geographical distribution.

Keywords : Ornamentals; Flowers; Monitoring; Chrysanthemum; Aster.

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