Bioecology of Spodoptera frugiperda (JE Smith, 1757) in different cover crops
DOI:
https://doi.org/10.14393/BJ-v32n2a2016-29759Palavras-chave:
fall armyworm. no-tillage. Zea mays. cover crops, tropical agricultureResumo
The objective of this work was to evaluate the biological variables of Spodoptera frugiperda on species of cover crops. The experiments were conducted in laboratory and greenhouse using the following species: sunflower (Helianthus annuus), sun hemp (Crotalaria juncea), brachiaria (Brachiaria decumbens e Brachiaria ruziziensis), millet (Pennisetum americanum), black oat (Avena stringosa), white lupin (Lupinus albus), forage turnip (Rafanus sativus) and maize (Zea mays). In laboratory the S. frugiperda larval survival varied from 57%, on L. albus, to 93% on H. annuus and the survival of the pre-imaginal phase varied from 45% on B. decumbens to 81.6% on Z. mays. On C. juncea the larval biomass was lower and the development period of the young and larval stage was higher. The adaptation index was less on C. juncea in greenhouse and laboratory. In greenhouse the larval survival at 14 days was similar for all plants and at 21 days was the lowest on C. juncea. There was less accumulation of biomass at 14 days on C. juncea and at 21 days on C. juncea and A. stringosa. Regarding damage, C. juncea presented less susceptibility to Spodoptera frugiperda attack, which together with the other evaluated parameters, indicated this plant as the most appropriate for soil cover before cultivation of maize.Downloads
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Publicado
2016-04-04
Como Citar
DIAS, A.S., MARUCCI, R.C., MENDES, S.M., MOREIRA, S.G., ARAÚJO, O.G., SANTOS, C.A. dos e BARBOSA, T.A., 2016. Bioecology of Spodoptera frugiperda (JE Smith, 1757) in different cover crops . Bioscience Journal [online], vol. 32, no. 2, pp. 337–345. [Accessed23 novembro 2024]. DOI 10.14393/BJ-v32n2a2016-29759. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/29759.
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Ciências Agrárias
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Copyright (c) 2016 Aline Silvia Dias, Rosangela Cristina Marucci, Simone Martins Mendes, Silvino Guimarães Moreira, Octávio Gabriel Araújo, Christiane Almeida dos Santos, Tatiane Aparecida Barbosa
Este trabalho está licenciado sob uma licença Creative Commons Attribution 4.0 International License.