Seasonal abundance of rice stem bug

Authors

  • Robson Antonio Botta Universidade Federal de Pelotas (UFPel), Instituto de Biologia, Pelotas, RS, Brasil.
  • Fernando Felisberto da Silva Universidade Federal do Pampa (Unipampa), Laboratório de Entomologia Agrícola, Itaqui, RS, Brasil.
  • Juliano de Bastos Pazini Universidade Federal de Pelotas (UFPel), Faculdade de Agronomia Eliseu Maciel, Pelotas, RS, Brasil.
  • José Francisco da Silva Martins Empresa Brasileira de Pesquisa Agropecuária (Embrapa Clima Temperado), Estação Experimental Terras Baixas, Pelotas, RS, Brasil.
  • Rodrigo Rubenich Universidade Federal do Pampa (Unipampa), Laboratório de Entomologia Agrícola, Itaqui, RS, Brasil.

Keywords:

Tibraca limbativentris Stal (Hemiptera, Pentatomidae), Oryza sativa L., population variation.

Abstract

The rice stem bug (Tibraca limbativentris) population has increased over the last years making it one of the main pests in irrigated rice crops in Planalto da Campanha, Rio Grande do Sul State, Brazil. Favorable factors throughout the year provide conditions for its infestation in crops and subsequent hibernation. This study aimed to determine the variation of rice stem bug population in commercial irrigated rice crop and hibernation sites. Therefore, a population survey of nymphs and adults was carried out. It was concluded that the photoperiod and temperature were the factors that most affected the insect population, leading to a hibernation period of 10 months. Management operations also affected the population reduction.

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Author Biography

Fernando Felisberto da Silva, Universidade Federal do Pampa (Unipampa), Laboratório de Entomologia Agrícola, Itaqui, RS, Brasil.

Professor Adjunto nivel IV

Universidade Federal Pampa - Campus Itaqui - Núcleo de Estudos e Pesquisas em Manejo Integrado de Pragas

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Published

2014-12-12

How to Cite

BOTTA, R. A.; SILVA, F. F. da; PAZINI, J. de B.; MARTINS, J. F. da S.; RUBENICH, R. Seasonal abundance of rice stem bug. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 44, n. 4, p. 417–423, 2014. Disponível em: https://revistas.ufg.br/pat/article/view/28252. Acesso em: 21 nov. 2024.

Issue

v. 44, n. 4, Oct./Dec. 2014

Section

Plant Protection

License

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