Age-dependent fecundity of Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) with sublethal doses of gammacyhalothrin
Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) was exposed to gammacyhalothrin to study the stimulatory effect of low concentrations of this pyrethroid. The doses studied were 23.4375, 11.7188, 5.8594, 2.9297, 1.4648, 0.7324 mg.litre-1 and water, as control. The third, fourth, and fifth instars of P. nigrispinus were shorter with all the doses of this insecticide. The survival and longevity of this predator was highest with the lowest doses. The oviposition period of P. nigrispinus decreased as the doses increased. The lowest pre-and postoviposition periods were found with 11.7188 mg.litre-1 of gammacyhalothrin. The dose 0.7324 mg.litre-1 increased the clutch interval. The egg viability was similar between the treatments. The number of eggs per clutch, clutches per female, incubation period, and female body weight were not affected. The hormesis response could be used as a tool for IPM programs, allowing the manipulating parameters of this predator in synergism with this insecticide.
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Instituto de Tecnologia do Paraná - Tecpar
2009
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oai:scielo:S1516-891320090005000132010-01-12Age-dependent fecundity of Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) with sublethal doses of gammacyhalothrinPereira,Alexandre Igor AzevedoRamalho,Francisco de SousaBandeira,Catarina de MedeirosMalaquias,José BrunoZanuncio,José Cola Predator pyrethroid stink bug hormesis biology Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) was exposed to gammacyhalothrin to study the stimulatory effect of low concentrations of this pyrethroid. The doses studied were 23.4375, 11.7188, 5.8594, 2.9297, 1.4648, 0.7324 mg.litre-1 and water, as control. The third, fourth, and fifth instars of P. nigrispinus were shorter with all the doses of this insecticide. The survival and longevity of this predator was highest with the lowest doses. The oviposition period of P. nigrispinus decreased as the doses increased. The lowest pre-and postoviposition periods were found with 11.7188 mg.litre-1 of gammacyhalothrin. The dose 0.7324 mg.litre-1 increased the clutch interval. The egg viability was similar between the treatments. The number of eggs per clutch, clutches per female, incubation period, and female body weight were not affected. The hormesis response could be used as a tool for IPM programs, allowing the manipulating parameters of this predator in synergism with this insecticide.info:eu-repo/semantics/openAccessInstituto de Tecnologia do Paraná - TecparBrazilian Archives of Biology and Technology v.52 n.5 20092009-10-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500013en10.1590/S1516-89132009000500013 |
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Pereira,Alexandre Igor Azevedo Ramalho,Francisco de Sousa Bandeira,Catarina de Medeiros Malaquias,José Bruno Zanuncio,José Cola |
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Pereira,Alexandre Igor Azevedo Ramalho,Francisco de Sousa Bandeira,Catarina de Medeiros Malaquias,José Bruno Zanuncio,José Cola Age-dependent fecundity of Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) with sublethal doses of gammacyhalothrin |
author_facet |
Pereira,Alexandre Igor Azevedo Ramalho,Francisco de Sousa Bandeira,Catarina de Medeiros Malaquias,José Bruno Zanuncio,José Cola |
author_sort |
Pereira,Alexandre Igor Azevedo |
title |
Age-dependent fecundity of Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) with sublethal doses of gammacyhalothrin |
title_short |
Age-dependent fecundity of Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) with sublethal doses of gammacyhalothrin |
title_full |
Age-dependent fecundity of Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) with sublethal doses of gammacyhalothrin |
title_fullStr |
Age-dependent fecundity of Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) with sublethal doses of gammacyhalothrin |
title_full_unstemmed |
Age-dependent fecundity of Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) with sublethal doses of gammacyhalothrin |
title_sort |
age-dependent fecundity of podisus nigrispinus (dallas) (heteroptera: pentatomidae) with sublethal doses of gammacyhalothrin |
description |
Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) was exposed to gammacyhalothrin to study the stimulatory effect of low concentrations of this pyrethroid. The doses studied were 23.4375, 11.7188, 5.8594, 2.9297, 1.4648, 0.7324 mg.litre-1 and water, as control. The third, fourth, and fifth instars of P. nigrispinus were shorter with all the doses of this insecticide. The survival and longevity of this predator was highest with the lowest doses. The oviposition period of P. nigrispinus decreased as the doses increased. The lowest pre-and postoviposition periods were found with 11.7188 mg.litre-1 of gammacyhalothrin. The dose 0.7324 mg.litre-1 increased the clutch interval. The egg viability was similar between the treatments. The number of eggs per clutch, clutches per female, incubation period, and female body weight were not affected. The hormesis response could be used as a tool for IPM programs, allowing the manipulating parameters of this predator in synergism with this insecticide. |
publisher |
Instituto de Tecnologia do Paraná - Tecpar |
publishDate |
2009 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500013 |
work_keys_str_mv |
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1756423813204017152 |