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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
17/01/2007 |
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Data da última atualização: |
08/12/2011 |
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Autoria: |
HIROSE, E.; PANIZZI, A. R.; CATTELAN, A. J. |
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Título: |
Effect of relative humidity on emergence and on dispersal and regrouping of first instar Nezara viridula (L.) (Hemiptera: Pentatomidae). |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Neotropical Entomology, Pelotas, v. 35, n. 6, p. 757-761, Nov./Dec. 2006. |
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Idioma: |
Inglês |
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Conteúdo: |
Laboratory studies with 1st instar of southern green stink bug, Nezara viridula (L.)ldicated that relative humidity (RH) greatly affected nymph emergence and survivorship up to the 2 nd instar, reaching the maximum value (~ 90%) with RH of> 80%. At 60% RH, 60% of the nymphs energed and survived, while with 0% RH only ~ .15% of eggs hatched, and most nymphs died. Emerged nymphs from egg masses placed in plastic boxes with a gradient of humidity remained on egg shells for ca. one day. After this period, they dispersed and regrouped on top of shells 6.8+- :0.67 times, until they abandoned the shells toward the source of humidity, avoiding the water-saturated areas. Duration taken for each rearrangement (dispersal + regroup) increased with time, with a range of ~ 26 min to 44 min. The mean duration of the grouping behavior on egg shells after each rearrangement decreased from ~ 102 min (1 st) to 24 min (6th and last grouping). The rearrangement behavior of 1 st instars on top of egg shells apparently compensates for the water loss of nymphs. |
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Palavras-Chave: |
Effect of relative humidity on emergence and on dispersal and regrouping of first instar Nezara viridula. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/49802/1/26855.pdf
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Marc: |
LEADER 01669naa a2200157 a 4500
001 1466760
005 2011-12-08
008 2006 bl uuuu u00u1 u #d
100 1 $aHIROSE, E.
245 $aEffect of relative humidity on emergence and on dispersal and regrouping of first instar Nezara viridula (L.) (Hemiptera$bPentatomidae).
260 $c2006
520 $aLaboratory studies with 1st instar of southern green stink bug, Nezara viridula (L.)ldicated that relative humidity (RH) greatly affected nymph emergence and survivorship up to the 2 nd instar, reaching the maximum value (~ 90%) with RH of> 80%. At 60% RH, 60% of the nymphs energed and survived, while with 0% RH only ~ .15% of eggs hatched, and most nymphs died. Emerged nymphs from egg masses placed in plastic boxes with a gradient of humidity remained on egg shells for ca. one day. After this period, they dispersed and regrouped on top of shells 6.8+- :0.67 times, until they abandoned the shells toward the source of humidity, avoiding the water-saturated areas. Duration taken for each rearrangement (dispersal + regroup) increased with time, with a range of ~ 26 min to 44 min. The mean duration of the grouping behavior on egg shells after each rearrangement decreased from ~ 102 min (1 st) to 24 min (6th and last grouping). The rearrangement behavior of 1 st instars on top of egg shells apparently compensates for the water loss of nymphs.
653 $aEffect of relative humidity on emergence and on dispersal and regrouping of first instar Nezara viridula
700 1 $aPANIZZI, A. R.
700 1 $aCATTELAN, A. J.
773 $tNeotropical Entomology, Pelotas$gv. 35, n. 6, p. 757-761, Nov./Dec. 2006.
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Embrapa Soja (CNPSO) |
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