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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
20/03/1991 |
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Data da última atualização: |
20/03/1991 |
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Autoria: |
HEWITT, G. B. |
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Título: |
Effects of spittlebug feeding on forage and root production of Brachiaria decumbens and Brachiaria brizantha marandu (bra-000019). |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
Pesquisa Agropecuaria Brasileira, Brasilia, v.24, n.3, p.307-314, mar. 1989. |
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Idioma: |
Inglês |
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Notas: |
CNPGC. |
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Conteúdo: |
The spittlebug Zulia entreriana was used in laboratory feeding tests to evaluate the degree of damage to the oliage and rods of Brachiaria decumbens and Brachiaria brizantha, Nymphal feeding on B. decumbens reduced the weight of foliage by an average of 21% and the roots by 36% adults reduced the foliage weight by 27% and the roots by 48%. Nymphs and adults feeding on the same plant reduced the foliage weight by an average of 36% and the roots by 50% The degree of damage was in direct proportion to insect density; the more insects per plant, the grater the amunt of damage. In one teste, significantly (P<0,05) more new shoots were produced on B. decumbens plants that contained a hight density of adults The reduction in root weights due to insect feeding was was abourt 1 1/2 time greater than that for foliage. Brachiaria brizantha was les affected by insect feeding than was B. decumbens. Weight differences between the control plants and the infested plants were less on B. brizantha and plant recovery, once insects were removed, was faster. |
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Palavras-Chave: |
Forrageira. |
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Thesagro: |
Pastagem; Veterinária; Zootecnia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01618naa a2200181 a 4500
001 1318715
005 1991-03-20
008 1989 bl uuuu u00u1 u #d
100 1 $aHEWITT, G. B.
245 $aEffects of spittlebug feeding on forage and root production of Brachiaria decumbens and Brachiaria brizantha marandu (bra-000019).
260 $c1989
500 $aCNPGC.
520 $aThe spittlebug Zulia entreriana was used in laboratory feeding tests to evaluate the degree of damage to the oliage and rods of Brachiaria decumbens and Brachiaria brizantha, Nymphal feeding on B. decumbens reduced the weight of foliage by an average of 21% and the roots by 36% adults reduced the foliage weight by 27% and the roots by 48%. Nymphs and adults feeding on the same plant reduced the foliage weight by an average of 36% and the roots by 50% The degree of damage was in direct proportion to insect density; the more insects per plant, the grater the amunt of damage. In one teste, significantly (P<0,05) more new shoots were produced on B. decumbens plants that contained a hight density of adults The reduction in root weights due to insect feeding was was abourt 1 1/2 time greater than that for foliage. Brachiaria brizantha was les affected by insect feeding than was B. decumbens. Weight differences between the control plants and the infested plants were less on B. brizantha and plant recovery, once insects were removed, was faster.
650 $aPastagem
650 $aVeterinária
650 $aZootecnia
653 $aForrageira
773 $tPesquisa Agropecuaria Brasileira, Brasilia$gv.24, n.3, p.307-314, mar. 1989.
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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| Registros recuperados : 6 | |
| 6. |  | NILAKHE, S. S.; HEWITT, G. B.; PASCHOAL, G. O.; BUAINAIN, C. M.; SOUZA, A. R. R. Influence of collection method and collection time on survival, sexual proportion and number of spittlebug adults captured. Pesquisa Agropecuaria Brasileira, Brasilia, v.22, n.9/10, p.929-934 set./out.1987.| Biblioteca(s): Área de Informação da Sede. |
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| Registros recuperados : 6 | |
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