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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
21/02/2018 |
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Data da última atualização: |
21/02/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CASTILHOS, R. V.; GRÜTZMACHER, A. D.; COATS, J. |
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Título: |
Acute Toxicity and Sublethal Effects of Terpenoids and Essential Oils on the Predator Chrysoperla externa (Neuroptera: Chrysopidae). |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Neotropical Entomology, Londrina, v. , n. , p. 1-7, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
The search for new safer insecticides has increased in recent agriculture.
Botanical compounds such as terpenoids and plant essential oils with
insecticidal activity could represent important tools in pest management,
and their risk assessment against non-target organisms is necessary
since they may serve as a precursor for the synthesis of new insecticide
active ingredients. For this study, the acute toxicity and sublethal
effects of seven terpenoids and three essential oils with recognized insecticidal
activity were evaluated on the predator Chrysoperla externa
(Hagen) (Neuroptera: Chrysopidae) in laboratory bioassays. Results indicate
that these compounds feature relative selectivity to the predator
C. externa; however, sublethal effects on reproduction were recorded
for some compounds. The phenolic monoterpenoids carvacrol and thymol
were more acutely toxic than other terpenoids screened, with LD50
<20,000 μg/g; however, they were less toxic than natural pyrethrins
(toxicity standard) in these bioassays. Sublethal effects on fecundity
and fertility were observed for R-(+)-limonene, while oregano oil only
affected fecundity. The compounds evaluated here have potential to
be used as insecticides and can serve as backbone for future synthesis
of selective active ingredients; however, a complete risk assessment to
C. externa and other non-target organisms is necessary for their incorporation
in future crop protection paradigms. |
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Palavras-Chave: |
5-isopropyl-2-methylphenol; 5-methyl-2-isopropylphenol; biological control; botanical insecticides; lacewing; Sustainable pest management. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 02188naa a2200217 a 4500
001 1127122
005 2018-02-21
008 2017 bl uuuu u00u1 u #d
100 1 $aCASTILHOS, R. V.
245 $aAcute Toxicity and Sublethal Effects of Terpenoids and Essential Oils on the Predator Chrysoperla externa (Neuroptera$bChrysopidae).$h[electronic resource]
260 $c2017
520 $aThe search for new safer insecticides has increased in recent agriculture. Botanical compounds such as terpenoids and plant essential oils with insecticidal activity could represent important tools in pest management, and their risk assessment against non-target organisms is necessary since they may serve as a precursor for the synthesis of new insecticide active ingredients. For this study, the acute toxicity and sublethal effects of seven terpenoids and three essential oils with recognized insecticidal activity were evaluated on the predator Chrysoperla externa (Hagen) (Neuroptera: Chrysopidae) in laboratory bioassays. Results indicate that these compounds feature relative selectivity to the predator C. externa; however, sublethal effects on reproduction were recorded for some compounds. The phenolic monoterpenoids carvacrol and thymol were more acutely toxic than other terpenoids screened, with LD50 <20,000 μg/g; however, they were less toxic than natural pyrethrins (toxicity standard) in these bioassays. Sublethal effects on fecundity and fertility were observed for R-(+)-limonene, while oregano oil only affected fecundity. The compounds evaluated here have potential to be used as insecticides and can serve as backbone for future synthesis of selective active ingredients; however, a complete risk assessment to C. externa and other non-target organisms is necessary for their incorporation in future crop protection paradigms.
653 $a5-isopropyl-2-methylphenol
653 $a5-methyl-2-isopropylphenol
653 $abiological control
653 $abotanical insecticides
653 $alacewing
653 $aSustainable pest management
700 1 $aGRÜTZMACHER, A. D.
700 1 $aCOATS, J.
773 $tNeotropical Entomology, Londrina$gv. , n. , p. 1-7, 2017.
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| Registros recuperados : 69 | |
| 13. |  | CASTILHOS, R. V.; RIBEIRO, L. P. Circadian feeding behavior of Dichelops melacanthus (Hemiptera: Pentatomidae) on maize crops. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 27., CONGRESSO LATINO-AMERICANO DE ENTOMOLOGIA, 10., 2018, Gramado, RS. Resumos... Londrina, PR: Sociedade Entomológica do Brasil, 2018.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Epagri-Sede. |
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| 15. | | CASTILHOS, R. V.; BRUGNARA, E. C. EVALUATING BOTANICAL INSECTICIDES AGAINST Palpita forficifera (LEPIDOPTERA: CRAMBIDAE) LARVAE IN LABORATORY. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 28., ENCONTRO NACIONAL DE OLIVICULTURA, 5., 2023, Pelotas, RS. Anais... Jaboticabal, SP: SBF, 2023.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Epagri-Sede. |
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| 17. | | CASTILHOS, R. V.; SILVA, A. K. Initial damage of Dichelops melacanthus (Hemiptera: Pentatomidae) on different maize genotypes in greenhouse condition. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 27., CONGRESSO LATINO-AMERICANO DE ENTOMOLOGIA, 10., 2018, Gramado, RS. Resumos... Londrina, PR: Sociedade Entomológica do Brasil, 2018.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Epagri-Sede. |
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| Registros recuperados : 69 | |
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