Weevil associated to gummosis in oil palm (Elaeis guineensis Jacq.) in Brazil 87 COMUNICAÇÃO CIENTÍFICA WEEVIL ASSOCIATED TO GUMMOSIS IN OIL PALM (Elaeis guineensis Jacq.) IN BRAZIL José Inácio Lacerda Moura 1 , Marival Lopes de Oliveira 1 , Edna Dora Martins Newman Luz 1 , Stela Dalva Vieira Midlej Silva 1 , Rodrigo Souza Santos 2 1 Comissão Executiva do Plano da Lavoura Cacaueira (CEPLAC), Itabuna, BA, Brasil. E-mails: jinaciolacerda@yahoo.com.br, marival@cpec.gov.br, ednadora@cepec.gov.br, stela@cpec.gov.br 2 Empresa Brasileira de Pesquisa Agropecuária (Embrapa Acre), Laboratório de Entomologia, Rio Branco, AC, Brasil. E-mail: rodrigo.s.santos@embrapa.br ABSTRACT In commercial plantations of oil palm in Nazare municipality, state of Bahia, Brazil, the association of Rhinostomus barbirostris Fabricius and Ceratocystis paradoxa (Dade) C. Moreau in high number of oil palm trees showing stem bleeding symptoms was observed. The pathogen was isolated from tissues of diseased oil palm plants. To our knowledge this is the first report on the contribution of R. barbirostris to increase the severity of stem bleeding disease caused by C. paradoxa in oil palm. Control measures are suggested. Keywords: Ceratocystis paradoxa, Elaeis guineenses, Rhinostomus barbirostris GORGULHO ASSOCIADO À RESINOSE EM DENDEZEIRO (Elaeis guineensis Jacq.) NO BRASIL RESUMO Em plantações comerciais de dendê, no município de Nazaré, estado da Bahia, Brasil, foi observada a associação de Rhinostomus barbirostris e Ceratocystis paradoxa em grande número de dendezeiros com sintomas de resinose. O patógeno foi isolado dos tecidos de plantas doentes. Este é o primeiro relato sobre a contribuição de R. barbirostris para o aumento da severidade da resinose em dendezeiro. Medidas de controle são sugeridas. Palavras-chave: Ceratocystis paradoxa, Elaeis guineensis, Rhinostomus barbirostris Gummosis or stem bleeding is an important disease of coconut and other palm crops around the world. Ceratocystis paradoxa (Dade) C. Moreau anamorph Thielaviopsis paradoxa (De Seynes) Saccardo is suspicious of being the causal agent of this disease, once it is easily isolated from tissues of coconut diseased plants (FERREIRA et al., 2007). According to Ferreira et al. (2007), the stem bleeding disease occurs in coconut plantations of the northeast region of Brazil, mainly the states of Sergipe and Bahia. Infected coconut palms show the characteristic exudation of a dark reddish- brown liquid from the growth cracks and/or wounds of the stem, reduction of both the size of young leaves and the frequency of leaf budding. The trunk gradually tapers toward the apex and the crown size is reduced. The outer whorl of leaves becomes