RESUMO No Brasil, a seringueira Hevea brasiliensis (Willd. ex A.Juss.) é plantada em áreas de escape para evitar a doença do mal-das-folhas. Embora haja relatos de danos ocasionados por insetos e ácaros na literatura, estes são esparsos. O objetivo deste estudo foi realizar um levantamento populacional da comunidade de Scolytinae, Platypodinae (Curculionidae) e Bostrichidae em um plantio de seringueira em Goianésia, estado de Goiás, com armadilhas de impacto de voo iscadas com etanol, de março de 2013 a março de 2014. Scolytinae (13 gêneros, 29 espécies) foi o grupo mais abundante, representando mais de 99% dos espécimes capturados, enquanto que seis espécies de Bostrichidae, sete de Cerambycidae e duas de Platypodinae foram também capturadas. Hypothenemus obscurus (Scolytinae) representou cerca de 89% de todos os exemplares capturados. Embora nenhum ataque a árvores vivas tenha sido observado durante a pesquisa, espécies com capacidade conhecida de atacar e colonizar com sucesso árvores vivas foram capturadas neste estudo. Talvez isso seja uma indicação de que a plantação é bem gerenciada, não fornecendo condições para que isso ocorra.

ABSTRACT In Brazil, the rubber tree Hevea brasiliensis (Willd. ex A.Juss.) is heavily planted in the so-called escape areas in order to avoid leaf blight. While there are reports on damage inflicted by insects and mites in the literature, these are sparse. The objective of this study was to survey the community of Scolytinae, Platypodinae (Curculionidae) and Bostrichidae, in a rubber tree plantation in Goianésia, state of Goiás, Brazil, with ethanol-baited flight intercept traps from March 2013 through March 2014. Scolytinae beetles (13 genera, 29 species) were the most abundant group, accounting for over 99% of trapped specimens, while six Bostrichidae, seven Cerambycidae and two Platypodinae species were also caught. Hypothenemus obscurus (Scolytinae) comprised ca. 89% of all trapped specimens. While no attack on live trees was observed during the survey, species with known ability to attack and successfully colonize standing trees were trapped in this study. Perhaps this is an indication that the plantation is well managed, not providing conditions where attacks on live trees may occur.

Abstract Rubber tree is the main source of natural rubber in the world. Because of its economic importance, cultivation was accentuated in several regions of Brazil in the form of monoculture, thus favoring insects to establish in the crop. Among them, the West Indian red scale cochineal Selenaspidus articulatus stands out, responsible for injuring rubber plants due to sap sucking. This work evaluated the fluctuation of S. articulatus in rubber tree clones. Sampling was carried out by collecting leaves every 15 days from PB 235, RRIM 600, PR 255 and GT 1 clones during the period of March 2013 and March 2014. RRIM 600 clone showed the highest population level of S. articulatus, with a population peak of 14.88 insects/leaf in June. PR 255 clone had the lowest scale infestation, demonstrating this clone’s possible resistance to this species. This is the first report of S. articulatus occurrence in Goiás.