Resumos
Foi constatada a ocorrência do besourinho Carpophilus humeralis (Fabricius) (Coleoptera, Nitidulidae) no Estado de São Paulo, em toletes de cana-de-açúcar com podridão-abacaxi, causada pelo fungo Ceratocystis paradoxa (De Seynes) Moreau. Experimento conduzido com duas variedades de cana, IAC64-257 e NA56-79, tratamento do tolete com fungicida e posição da gema no tolete, demonstrou que a variedade NA56-79 respondeu positivamente ao tratamento com fungicida enquanto a variedade IAC64-257 não apresentou resposta. As gemas da extremidade do tolete foram mais afetadas que as centrais.
Carpophilus humeralis; Ceratocystis paradoxo; cana-de-açúcar; podridão-abacaxi; Saccharum spp.
The pineapple disease caused by Ceratocystis paradoxa (De Seynes) Moreau has been recognized as the main cause of poor germination of sugar cane fields in the State of São Paulo, Brazil, associated with rottening of the sugar cane cuttings. In 1983 in the counties of Promissão, Penápolis and Araçatuba and again in 1984 in Araçatuba for the first time was observed the occurrence of the pineapple disease associated with high populations of the nitidulid beetle Carpophilus humeralis (Fabricius). The authors ignore previous records of occurrence of this nitidulid species in Brazil. An experiment with three factors, fungicide treatment, variety and position of the buds in the cutting was performed. The treated cuttings were immersed in a solution of Benomil at 1% a.i. Two varieties of sugarcane, NA56-79 and IAC64-257 were used. Two positions of the buds in the cuttings were considered, middle and lateral. A split split plot design was used with 8 treatments and 16 replications. The presence or absence of fungicide treatment was the main plot. Varieties were sub plots and position of the buds within the cuttings constituted the sub sub plots. The treatment of the cutting for 1 minute in the fungicide solution improved the germination of the variety NA56-79 but had no effect in the variety IAC64-257. There was no difference between the percent germination of the two varieties in the absence of the fungicide treatment. In general the buds from the middle of the cuttings germinated better than lateral ones what is explained by the entrance of the fungi through the cut tissue, more distant from the middle bud.
Carpophilus humeralis; Ceratocystis paradoxa; sugarcane; pineapple disease; Saccharum spp.
NOTAS
Ocorrência do complexo Carpophilus humeralis (Fabricius)Ceratocystis paradoxa (De Seynes) Moreau em cana-de-açúcar no Estado de São Paulo1 1 Apresentada no XII Congresso Brasileiro de Zoologia, Campinas, SP, 27 de janeiro-12 de fevereiro de 1985.
Occurrence of the complex Carpophilus humeralis (Fabricius)Ceratocystis paradoxa (De Seynes) Moreau in sugar cane in the State of São Paulo, Brazil
Carlos Jorge RossettoI, 2 2 Com bolsa de suplementação do CNPq. ; André Luiz LourençãoI, 2 2 Com bolsa de suplementação do CNPq. ; Ademar EspironeloII, 2 2 Com bolsa de suplementação do CNPq. ; Toshio IgueIII; Ivan José Antunes RibeiroIV, 2 2 Com bolsa de suplementação do CNPq.
ISeção de Entomologia Fitotécnica, Instituto Agronômico (IAC), Caixa Postal 28, 13001 Campinas (SP)
IISeção de Cana-de-Açúcar, IAC
IIISeção de Técnica Experimental e Cálculo, IAC
IVSeção de Microbiologia Fitotécnica, IAC
RESUMO
Foi constatada a ocorrência do besourinho Carpophilus humeralis (Fabricius) (Coleoptera, Nitidulidae) no Estado de São Paulo, em toletes de cana-de-açúcar com podridão-abacaxi, causada pelo fungo Ceratocystis paradoxa (De Seynes) Moreau. Experimento conduzido com duas variedades de cana, IAC64-257 e NA56-79, tratamento do tolete com fungicida e posição da gema no tolete, demonstrou que a variedade NA56-79 respondeu positivamente ao tratamento com fungicida enquanto a variedade IAC64-257 não apresentou resposta. As gemas da extremidade do tolete foram mais afetadas que as centrais.
Termos de indexação:Carpophilus humeralis, Ceratocystis paradoxo, cana-de-açúcar, podridão-abacaxi, Saccharum spp.
SUMMARY
The pineapple disease caused by Ceratocystis paradoxa (De Seynes) Moreau has been recognized as the main cause of poor germination of sugar cane fields in the State of São Paulo, Brazil, associated with rottening of the sugar cane cuttings. In 1983 in the counties of Promissão, Penápolis and Araçatuba and again in 1984 in Araçatuba for the first time was observed the occurrence of the pineapple disease associated with high populations of the nitidulid beetle Carpophilus humeralis (Fabricius). The authors ignore previous records of occurrence of this nitidulid species in Brazil. An experiment with three factors, fungicide treatment, variety and position of the buds in the cutting was performed. The treated cuttings were immersed in a solution of Benomil at 1% a.i. Two varieties of sugarcane, NA56-79 and IAC64-257 were used. Two positions of the buds in the cuttings were considered, middle and lateral. A split split plot design was used with 8 treatments and 16 replications. The presence or absence of fungicide treatment was the main plot. Varieties were sub plots and position of the buds within the cuttings constituted the sub sub plots. The treatment of the cutting for 1 minute in the fungicide solution improved the germination of the variety NA56-79 but had no effect in the variety IAC64-257. There was no difference between the percent germination of the two varieties in the absence of the fungicide treatment. In general the buds from the middle of the cuttings germinated better than lateral ones what is explained by the entrance of the fungi through the cut tissue, more distant from the middle bud.
Index terms:Carpophilus humeralis, Ceratocystis paradoxa, sugarcane, pineapple disease, Saccharum spp.
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Recebida para publicação em 24 de junho de 1985.
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- CARVALHO, P.C.T. Estudos das podridões dos toletes de cana-de-açúcar. Piracicaba, E.S.A. "Luiz de Queiroz", 1963. 98p. Tese (Doutoramento)
- CHANG, V.C.S. & JENSEN, L. Transmission of the pineapple disease organism of sugarcane by nitidulid beetles in Hawaii. Journal of Economic Entomology, 67:190-192, 1974.
- CONNELL, W.A. Bibliography of Carpophilus humeralis (Fab.) in support of a revision of the genus Carpophilus Stephens. Bulletin of the Entomological Society of America, 27:263-266, 1981.
- GALLI, F.; CARVALHO, P.C.T.; TOKESHI, H.; BALMER, E.; KIMATI, H.; CARDOSO, C.O.N.; SALGADO, C.L.; KRÜGNER, T.L.; CARDOSO, E.J.B.N. & BERGAMIN FILHO, A. Doenças das plantas cultivadas. São Paulo, Ceres, 1980. v.2.
- SCHMIDT, C.T. Biological studies on the nitidulid beetles found in pineapple fields (Nitidulidae, Coleoptera). Annals of the Entomological Society of America, 28:475-511, 1935.
- WISMER, C.A. Pineapple disease. In: MARTIN, J.P.; ABBOTT, E.V. & HUGHES, C.G. Sugar-cane diseases of the world. New York, Elsevier Publishing Company, 1961. v.1,p.222-235.
Datas de Publicação
-
Publicação nesta coleção
11 Dez 2007 -
Data do Fascículo
1986
Histórico
-
Recebido
24 Jun 1985
