Toxicity of <i>Piper hispidinervum</i> Essential Oil to <i>Callosobruchus maculatus</i> and Cowpea Bean Quality
Essential oils and their major compounds have been studied to protect stored grains, especially for the control of insects. In this context, this research aimed to investigate the fumigation and contact toxicities of the essential oil of <i>Piper hispidinervum</i> C. DC. (<i>Pipera...
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MDPI AG
2024-11-01
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| author | Maria Suely Siqueira Ferraz Lêda Rita D’Antonino Faroni Adalberto Hipólito de Sousa Fernanda Fernandes Heleno Marcus Vinicius de Assis Silva Ernandes Rodrigues de Alencar |
| author_facet | Maria Suely Siqueira Ferraz Lêda Rita D’Antonino Faroni Adalberto Hipólito de Sousa Fernanda Fernandes Heleno Marcus Vinicius de Assis Silva Ernandes Rodrigues de Alencar |
| author_sort | Maria Suely Siqueira Ferraz |
| collection | DOAJ |
| description | Essential oils and their major compounds have been studied to protect stored grains, especially for the control of insects. In this context, this research aimed to investigate the fumigation and contact toxicities of the essential oil of <i>Piper hispidinervum</i> C. DC. (<i>Piperaceae</i>) (sin. <i>Piper hispidum</i> Sw.) to <i>Callosobruchus maculatus</i> adult individuals and the effect on insect progeny. We also assessed the essential oil’s effect on stored-cowpea quality. The fumigation bioassay used essential oil at 14.3, 57.1, 100.0, 142.9, and 185.7 µL/L of air, whereas the contact bioassay tested concentrations of 60, 80, 100, 120, and 140 µL/kg. Insect mortality was appraised after four days (fumigation) or one day (contact). In turn, oviposition and emergence rates were evaluated after seven (fumigation) or fifty (contact) days of storage. Grain quality was also analyzed after 50 days of storage. Safrole was confirmed as the primary compound of the essential oil. <i>P. hispidinervum</i> essential oil proved its fumigant and contact toxicities to <i>C. maculatus</i> adult individuals. The concentrations lethal to 50 and 95% of the population were, respectively, 91.23 and 242.59 µL/L of air (fumigation) and 101.51 and 208.52 µL/kg of cowpeas (contact). In both application forms, <i>C. maculatus</i> oviposition and progeny rates declined with the increase in the essential oil concentration. Furthermore, cowpea bean quality was preserved even at sublethal doses. |
| format | Article |
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| issn | 2223-7747 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
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| series | Plants |
| spelling | doaj-art-668b2ec138924e4f9c3ac1cbfc91f88b2025-08-20T01:53:57ZengMDPI AGPlants2223-77472024-11-011322314810.3390/plants13223148Toxicity of <i>Piper hispidinervum</i> Essential Oil to <i>Callosobruchus maculatus</i> and Cowpea Bean QualityMaria Suely Siqueira Ferraz0Lêda Rita D’Antonino Faroni1Adalberto Hipólito de Sousa2Fernanda Fernandes Heleno3Marcus Vinicius de Assis Silva4Ernandes Rodrigues de Alencar5Department of Agricultural Engineering, Federal University of Viçosa, Viçosa 36570-900, MG, BrazilDepartment of Agricultural Engineering, Federal University of Viçosa, Viçosa 36570-900, MG, BrazilCenter for Biology and Nature Sciences, Universidade Federal do Acre, Rio Branco 69920-900, AC, BrazilServiço Autônomo de Água e Esgoto de Senador Firmino, Senador Firmino 36540-000, MG, BrazilDepartment of Agricultural Engineering, Federal University of Viçosa, Viçosa 36570-900, MG, BrazilDepartment of Agricultural Engineering, Federal University of Viçosa, Viçosa 36570-900, MG, BrazilEssential oils and their major compounds have been studied to protect stored grains, especially for the control of insects. In this context, this research aimed to investigate the fumigation and contact toxicities of the essential oil of <i>Piper hispidinervum</i> C. DC. (<i>Piperaceae</i>) (sin. <i>Piper hispidum</i> Sw.) to <i>Callosobruchus maculatus</i> adult individuals and the effect on insect progeny. We also assessed the essential oil’s effect on stored-cowpea quality. The fumigation bioassay used essential oil at 14.3, 57.1, 100.0, 142.9, and 185.7 µL/L of air, whereas the contact bioassay tested concentrations of 60, 80, 100, 120, and 140 µL/kg. Insect mortality was appraised after four days (fumigation) or one day (contact). In turn, oviposition and emergence rates were evaluated after seven (fumigation) or fifty (contact) days of storage. Grain quality was also analyzed after 50 days of storage. Safrole was confirmed as the primary compound of the essential oil. <i>P. hispidinervum</i> essential oil proved its fumigant and contact toxicities to <i>C. maculatus</i> adult individuals. The concentrations lethal to 50 and 95% of the population were, respectively, 91.23 and 242.59 µL/L of air (fumigation) and 101.51 and 208.52 µL/kg of cowpeas (contact). In both application forms, <i>C. maculatus</i> oviposition and progeny rates declined with the increase in the essential oil concentration. Furthermore, cowpea bean quality was preserved even at sublethal doses.https://www.mdpi.com/2223-7747/13/22/3148Piperaceaebioinsecticide<i>Vigna unguiculata</i>bruchidgrain quality |
| spellingShingle | Maria Suely Siqueira Ferraz Lêda Rita D’Antonino Faroni Adalberto Hipólito de Sousa Fernanda Fernandes Heleno Marcus Vinicius de Assis Silva Ernandes Rodrigues de Alencar Toxicity of <i>Piper hispidinervum</i> Essential Oil to <i>Callosobruchus maculatus</i> and Cowpea Bean Quality Plants Piperaceae bioinsecticide <i>Vigna unguiculata</i> bruchid grain quality |
| title | Toxicity of <i>Piper hispidinervum</i> Essential Oil to <i>Callosobruchus maculatus</i> and Cowpea Bean Quality |
| title_full | Toxicity of <i>Piper hispidinervum</i> Essential Oil to <i>Callosobruchus maculatus</i> and Cowpea Bean Quality |
| title_fullStr | Toxicity of <i>Piper hispidinervum</i> Essential Oil to <i>Callosobruchus maculatus</i> and Cowpea Bean Quality |
| title_full_unstemmed | Toxicity of <i>Piper hispidinervum</i> Essential Oil to <i>Callosobruchus maculatus</i> and Cowpea Bean Quality |
| title_short | Toxicity of <i>Piper hispidinervum</i> Essential Oil to <i>Callosobruchus maculatus</i> and Cowpea Bean Quality |
| title_sort | toxicity of i piper hispidinervum i essential oil to i callosobruchus maculatus i and cowpea bean quality |
| topic | Piperaceae bioinsecticide <i>Vigna unguiculata</i> bruchid grain quality |
| url | https://www.mdpi.com/2223-7747/13/22/3148 |
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