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Authors: Rei, Fernando
Mateus, Célia
Torres, Laura
Keywords: Olive Thrips
spatial effects
temporal effects
Issue Date: 2011
Publisher: Acta Hort. (ISHS)
Citation: Rei, F.T., Mateus, C. and Torres, L. 2011. THRIPS IN OLEAE EUROPAEA L.: ORGANIC VERSUS CONVENTIONAL PRODUCTION. Acta Hort. (ISHS) 924:151-156
Abstract: A study was carried out to evaluate differences between thrips communities in olive orchards under organic or conventional production regimes. Four olive orchards, two under organic production and two under conventional production, were selected in the Alentejo region, south of Portugal. Thrips were collected in the olive canopy every fortnight, between April and November of 2000, by the beating technique and identified. The results indicated the presence of seven Terebrantia thrips genera, namely Aeolothrips sp., Frankliniella sp., Limothrips sp., Melanthrips sp., Neohydatothrips sp., Tenothrips sp., and Thrips sp. Nine species were identified: Aeolothrips intermedius Bagnall, Frankliniella tenuicornis (Uzel), Limothrips cerealium Haliday, Tenothrips discolour (Karny), Thrips angusticeps Uzel, Thrips atratus Haliday, Thrips australis (Bagnall), Thrips meridionalis (Priesner), and Thrips tabaci Lindeman. One morphotype still under identification and Limothrips sp. were the most abundant. Differences in the thrips communities composition between organic and conventional olive orchards were not observed by PRC and Kruskal-Wallis, and a dimethoate spray applied in the conventional orchard, only accounted for 0.4% of the total thrips matrix variation. Spatial (orchard location) and temporal (sampling date) explanatory variables accounted for 0.6 and 13.8% respectively, according to the partitioning variance technique.
Type: article
Appears in Collections:MED - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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