Abstract

Abstract Studies of insects associated with the fruit tree Hancornia speciosa Gomes (Apocynaceae), a native of the Brazilian Cerrado popularly known as “mangabeira”, are generally restricted to reports from seedling nurseries. Thrips predominate among insects that attack this crop. This study investigated the species of Thysanoptera that use this native fruit as a host, and which variety they prefer. The H. speciosa varieties speciosa s.str., cuyabensis, gardneri and pubescens were obtained from the collections of the ex-situ germplasm bank of native species at the Escola de Agronomia, Universidade Federal de Goiás, Goiânia, Brazil. Evaluations were conducted from January through December 2016. A total of 1679 individual thrips were identified. Thrips were most abundant on pubescens (79.08%), followed by gardneri (15.02%), cuyabensis (4.71%), and speciosa (1.19%). Representatives of the family Thripidae predominated in all collections, especially Coremothrips nubiculus and Heliothrips longisensibilis. The foliar trichomes present in var. pubescens may account for the high abundance of thrips on this variety. Heliothrips longisensibilis is recorded in Brazil for the first time.

Highlights

  • Hancornia speciosa Gomes (Apocynaceae), popularly known as “mangabeira”, is native to the Brazilian Cerrado and found in the northeastern and northern regions of Brazil (LORENZI, 1992)

  • This damage was associated with thysanopterans, maing it desirable to identify the main species of thrips associated with this plant

  • This study investigated the diversity of Thysanoptera associated with four varieties of H. speciosa

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Summary

Introduction

Hancornia speciosa Gomes (Apocynaceae), popularly known as “mangabeira”, is native to the Brazilian Cerrado and found in the northeastern and northern regions of Brazil (LORENZI, 1992). ALVES-SILVA et al (2013) evaluated the population of Thysanoptera, commonly termed thrips, on three species of Cerrado plants including H. speciosa, and found that Frankliniella musaeperda Hood, was associated with mangabeira flowers. PEREIRA et al (2010) observed injuries to fruits caused by unidentified species of thrips. These insects have agricultural importance due to the direct and indirect damage they cause, as in cases of virus transmission (MONTEIRO et al, 2001). Preliminary evaluations in this study found injuries to H. speciosa fruits and leaves, which could impair the marketing value of the whole fruit for consumption This damage was associated with thysanopterans, maing it desirable to identify the main species of thrips associated with this plant. This study investigated the diversity of Thysanoptera associated with four varieties of H. speciosa

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