Insecticidal activity of bio-oils and biochar as pyrolysis products and their combination with microbial agents against Agrotis ipsilon (Lepidoptera: Noctuidae)
Pyrolysis technology for producing biochar and bio-oils can be used as a potential alternative to make biopesticides, which are urgently needed in integrated pest management (IPM). Insecticidal activity of three components of bio-oils: aqueous, organic and their mixture, was evaluated individually a...
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| Format: | Article |
| Language: | English |
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Institute of Pesticides and Environmental Protection
2018-01-01
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| Series: | Pesticidi i Fitomedicina |
| Subjects: | |
| Online Access: | https://scindeks-clanci.ceon.rs/data/pdf/1820-3949/2018/1820-39491801039S.pdf |
| _version_ | 1818435469392740352 |
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| author | Sayed Atef M.M. Behle Robert W. Tiilikkala Kari Vaughn Steven F. |
| author_facet | Sayed Atef M.M. Behle Robert W. Tiilikkala Kari Vaughn Steven F. |
| author_sort | Sayed Atef M.M. |
| collection | DOAJ |
| description | Pyrolysis technology for producing biochar and bio-oils can be used as a potential alternative to make biopesticides, which are urgently needed in integrated pest management (IPM). Insecticidal activity of three components of bio-oils: aqueous, organic and their mixture, was evaluated individually and with three different entomopathogens: the baculovirus Agrotis ipsilon nucleopolyhedrovirus (AgipMNPV), bacterium Bacillus thuringensis var. kurstaki (Bt) and fungus Beauveria bassiana (Bb) against black cutworm, Agrotis ipsilon (Hufnagel). The effect of alkaline conditions of spray-dried biochar was studied simultaneously with the microbial pathogens. Our bioassay results indicated that the organic bio-oil phase was the most active, causing 100% mortality after 24 h, when the median lethal toxicity values LC50s (mg/ml) were found. However, the bio-oil fractions applied alone tended to cause higher mortality of the exposed larvae than did either mix with the microbial agents. Also, the results revealed that maximum mortalities were found in spray-dried formulations made with biochar at pH 7.1. It was concluded that pyrolysis oils are effective insecticides, and biochar could be a useful additive in production and formulation of biopesticides. This interesting finding further promotes the use of pyrolysis bio-oils and biochar compounds as eco-friendly alternatives to replace conventional pesticides. |
| first_indexed | 2024-12-14T16:53:23Z |
| format | Article |
| id | doaj.art-8a74e199474d41cc8b3745ac55c0c753 |
| institution | Directory Open Access Journal |
| issn | 1820-3949 2406-1026 |
| language | English |
| last_indexed | 2024-12-14T16:53:23Z |
| publishDate | 2018-01-01 |
| publisher | Institute of Pesticides and Environmental Protection |
| record_format | Article |
| series | Pesticidi i Fitomedicina |
| spelling | doaj.art-8a74e199474d41cc8b3745ac55c0c7532022-12-21T22:54:01ZengInstitute of Pesticides and Environmental ProtectionPesticidi i Fitomedicina1820-39492406-10262018-01-0133139521820-39491801039SInsecticidal activity of bio-oils and biochar as pyrolysis products and their combination with microbial agents against Agrotis ipsilon (Lepidoptera: Noctuidae)Sayed Atef M.M.0Behle Robert W.1Tiilikkala Kari2Vaughn Steven F.3Agricultural Research Center, Plant Protection Research Institute, Biological Control Research Department, Giza, EgyptUnited States Department of Agriculture, Agricultural Research Service, National Center for Agricultural Utilization Research, Crop Bioprotection Research Unit, Peoria, Illinois, USAMTT Agrifood Research Finland, Natural Resources Institute (Luke), Jokioinen, FinlandUnited States Department of Agriculture, Agricultural Research Service, National Center for Agricultural Utilization Research, Crop Bioprotection Research Unit, Peoria, Illinois, USAPyrolysis technology for producing biochar and bio-oils can be used as a potential alternative to make biopesticides, which are urgently needed in integrated pest management (IPM). Insecticidal activity of three components of bio-oils: aqueous, organic and their mixture, was evaluated individually and with three different entomopathogens: the baculovirus Agrotis ipsilon nucleopolyhedrovirus (AgipMNPV), bacterium Bacillus thuringensis var. kurstaki (Bt) and fungus Beauveria bassiana (Bb) against black cutworm, Agrotis ipsilon (Hufnagel). The effect of alkaline conditions of spray-dried biochar was studied simultaneously with the microbial pathogens. Our bioassay results indicated that the organic bio-oil phase was the most active, causing 100% mortality after 24 h, when the median lethal toxicity values LC50s (mg/ml) were found. However, the bio-oil fractions applied alone tended to cause higher mortality of the exposed larvae than did either mix with the microbial agents. Also, the results revealed that maximum mortalities were found in spray-dried formulations made with biochar at pH 7.1. It was concluded that pyrolysis oils are effective insecticides, and biochar could be a useful additive in production and formulation of biopesticides. This interesting finding further promotes the use of pyrolysis bio-oils and biochar compounds as eco-friendly alternatives to replace conventional pesticides.https://scindeks-clanci.ceon.rs/data/pdf/1820-3949/2018/1820-39491801039S.pdfPyrolysis productsMicrobial agentsInsecticidal activityAgrotis ipsilon |
| spellingShingle | Sayed Atef M.M. Behle Robert W. Tiilikkala Kari Vaughn Steven F. Insecticidal activity of bio-oils and biochar as pyrolysis products and their combination with microbial agents against Agrotis ipsilon (Lepidoptera: Noctuidae) Pesticidi i Fitomedicina Pyrolysis products Microbial agents Insecticidal activity Agrotis ipsilon |
| title | Insecticidal activity of bio-oils and biochar as pyrolysis products and their combination with microbial agents against Agrotis ipsilon (Lepidoptera: Noctuidae) |
| title_full | Insecticidal activity of bio-oils and biochar as pyrolysis products and their combination with microbial agents against Agrotis ipsilon (Lepidoptera: Noctuidae) |
| title_fullStr | Insecticidal activity of bio-oils and biochar as pyrolysis products and their combination with microbial agents against Agrotis ipsilon (Lepidoptera: Noctuidae) |
| title_full_unstemmed | Insecticidal activity of bio-oils and biochar as pyrolysis products and their combination with microbial agents against Agrotis ipsilon (Lepidoptera: Noctuidae) |
| title_short | Insecticidal activity of bio-oils and biochar as pyrolysis products and their combination with microbial agents against Agrotis ipsilon (Lepidoptera: Noctuidae) |
| title_sort | insecticidal activity of bio oils and biochar as pyrolysis products and their combination with microbial agents against agrotis ipsilon lepidoptera noctuidae |
| topic | Pyrolysis products Microbial agents Insecticidal activity Agrotis ipsilon |
| url | https://scindeks-clanci.ceon.rs/data/pdf/1820-3949/2018/1820-39491801039S.pdf |
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