Infestação de Aetalion reticulatum (Linnaeus) (Hemiptera: Auchenorrhyncha: Aethalionidae) em Plantas de Euterpe oleracea Martius (Arecaceae) no Estado do Acre

Abstract

Resumo. O açaizeiro (Euterpe oleracea Martius) é uma palmeira nativa da várzea da região amazônica e pode ser indicada como a espécie de maior valor econômico do gênero. Dos seus frutos é extraída a polpa, largamente consumida, de variadas formas, pela população da região Norte do Brasil. Com a expansão da área plantada, muitos fatores podem comprometer a produção e limitar o cultivo, destacando-se a ocorrência de insetospraga que causam prejuízos à produção. Este relato configura o primeiro registro de ocorrência da cigarrinha Aetalion reticulatum (Hemiptera: Auchenorrhyncha: Aethalionidae) em plantas de E. oleracea. A ocorrência deste inseto associado ao açaizeiro, em Rio Branco, Acre, aumenta a lista de hospedeiros desta cigarrinha no Brasil e reforça a necessidade de estudos de dinâmica populacional, levantamento de inimigos naturais, níveis de dano e métodos de controle, a fim de antecipar possíveis surtos populacionais desta praga em plantios comerciais de açaí no Estado.Palavras-Chave: Amazônia; Arecaceae; cigarrinha; fitófago; surto de insetos. Infestation of Aetalion reticulatum (Linnaeus) (Hemiptera: Aethalionidae) in Plants ofEuterpe oleracea Martius (Arecaceae) in Acre State, BrazilAbstract. The açai palm (Euterpe oleracea Martius) is a native palm tree from the Amazon region floodplains and may be indicated as the most economically profitable species of this genus. Its fruit pulp is extracted and widely consumed by the population of northern Brazil in several ways. With the expansion of the planted area many factors may affect the production and limit the cultivation, highlighting the occurrence of insect pests that cause losses in production. This report presents the first occurrence of the leafhopper Aetalion reticulatum (Linnaeus) (Hemiptera: Auchenorrhyncha: Aethalionidae) in E. oleracea plants. The occurrence of this insect associated with açai palms in Rio Branco, Acre, increases the list of hosts for this leafhopper in Brazil and reinforces the need for studies of population dynamics, survey of natural enemies, levels of damage and control methods in order to anticipate population outbreaks of this pest in commercial plantations of açai palms in the State.

Fauna Edafica Como Bioindicadora De Restauracao Com Arboreas Nativas, Em Area De Caatinga

“…Os Hemípteros (Auchenorryncha) têm hábito fitófago, alimentando-se da seiva de plantas (GALLO et al, 2002;SANTOS et al, 2015), o que relaciona sua presença com as condições ambientais existentes. No entanto, Heteroptera e Sternorryncha que também pertencem à ordem Hemiptera, destacaram-se nos períodos de coleta (secos) o que pode indicar maior adaptação competitiva em relação aos demais organismos (RODRIGUES et al, 2009).…”

First report of Aethalion reticulatum (Linnaeus, 1767) (Hemiptera: Aethalionidae) infesting plants of Coffea arabica (Linnaeus, 1753) (Rubiaceae)

“…This species has been identified in different hosts such as Dipteryx alata (Souza;Boscardin, 2020), Morinda citrifolia (Castro;Montalvão, 2019), Triplaris americana (Pires et al, 2015), Erythrina speciosa (Zanuncio et al, 2015), and Eucalyptus cloeziana (Menezes et al, 2012). The adults measure approximately 10 mm in length, have a rust-brown color and the venation of their wings are greenish with protruding ribs (Gallo et al, 2002;Creão Duarte;Lunz, 2015). Rando and Lima (2010) observed that the colonies of A. reticulatum were preferentially found in the basal part of the tree, next to 40-mm diameter branch bifurcations, with low incidence of sunlight, and even if stimulated, they did not endorse the colony's gregarious habit.…”

“…There are also other symbiotic insects such as the wasp Synoeca septentrionalis Richard, 1978 (Hymenoptera: Vespidae) and stingless bees belonging to the Meliponini tribe, especially Trigona spp. Creão-Duarte;Lunz, 2015;Rando;Lima, 2010).…”

Baru (Dipteryx alata Vogel, Fabaceae) as new host of the treehopper Aetalion reticulatum (Linnaeus, 1767) (Hemiptera: Aetalionidae)

“…Insect samples were stored in Falcon® tubes, containing 70% alcohol, and taken to the Entomopathogenic Bacteria Laboratory at Embrapa Genetic Resources and Biotechnology for identification with the aid of stereoscopic microscope. The specimens examined were morphologically/ morphometrically compared with the literature (Santos et al 2015, Zanuncio et al 2015 to determine the species, and the damage caused by the colonies were characterized and photographed.…”

“…Ex Kunth) (Castro & Montalvão 2019b); and noni (Morinda citrifolia Linnaeus) (Castro & Montalvão 2019a). In native Brazilian species, the insect has already been reported infesting açai palm (Euterpe oleraceae Martius) (Santos et al 2015) and mulungu-dolitoral (Erythrina speciosa Andrews) (Zanuncio et al 2015), which are Scientific Note species that occur in the Amazon and Atlantic Forest, respectively. In the Cerrado, the species has already been reported in pequi (Caryocar brasiliense Cambess.)…”