Tropical Plant Pathology (2008) 33, 331-334

Indira del C.M. Alvarado, Andréa B. Moura, Jaqueline T. Schafer, Cândida R.J. Farias and Carlos R. Pierobom (2008)
Ocorrência de Helicoceras oryzae em sementes e grãos de arroz produzidos no Rio Grande do Sul
[Occurrence of Helicoceras oryzae in rice seeds and grains produced in the state of Rio Grande do Sul]
Tropical Plant Pathology 33 (4), 331-334
Abstract: Samples of rice seeds and grains were collected from different localities in the state of Rio Grande do Sul during 2000-2001 (62 samples) and 2001-2001 (194 samples). Samples from the localities of Agro Reis, Agudo, Alegrete, Arambaré, Arroio Grande, Bagé, Caçapava do Sul, Cachoeira do Sul, Cachoeirinha, Camaquã, Canguçu, Capão do Leão, Capivari do Sul, Dom Pedrito, Eldorado do Sul, Esteio, Guaíba, Herval, Itaquí, Júlio Castilhos, Morro Redondo, Palmares do Sul, Pedro Osório, Pelotas, Pinheiro Machado, Porto Alegre, Quaraí, Restinga Seca, Rio Grande, Rosário do Sul, Santa Vitória do Palmar, Santa Rita, Santo Ângelo, Santo Antônio, São Borja, São Gabriel, São Lourenço do Sul, São Luiz Gonzaga, Tapes, Turuçu, Uruguaiana and Viamão were evaluated for the presence of a pest not found in Brazil, Helicoceras spp. Using the blotter test, 400 seeds were examined for each sample. The fungus H. oryzae was found in three samples of the 2000-2001 season: 268 (EEA-406), 647 (FORMOSA) and 652 (IRGA 419) from Cachoeirinha. These results allowed confirmation of the presence of the fungus H. oryzae. The Conesul Committee of Plant Health and Safety is evaluating the exclusion of this fungus, considered a pest of minor importance, from the quarantine list. Future studies about dissemination and impacts of the disease are necessary to support effective control measures.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
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Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution
quarantine treatments/regulations/aspects

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Helicoceras oryzae	Rice (Oryza)	Brazil (south)