Plant Essential Oils Synergize and Antagonize Toxicity of Different Conventional Insecticides against Myzus persicae (Hemiptera: Aphididae)
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{"title"=>"Plant essential oils synergize and antagonize toxicity of different conventional insecticides against Myzus persicae (Hemiptera: Aphididae)", "type"=>"journal", "authors"=>[{"first_name"=>"Nicoletta", "last_name"=>"Faraone", "scopus_author_id"=>"26424976800"}, {"first_name"=>"N. Kirk", "last_name"=>"Hillier", "scopus_author_id"=>"8845447600"}, {"first_name"=>"G. Christopher", "last_name"=>"Cutler", "scopus_author_id"=>"8961532700"}], "year"=>2015, "source"=>"PLoS ONE", "identifiers"=>{"isbn"=>"1932-6203", "pmid"=>"26010088", "doi"=>"10.1371/journal.pone.0127774", "pui"=>"604521433", "issn"=>"19326203", "sgr"=>"84930226861", "scopus"=>"2-s2.0-84930226861"}, "id"=>"a58bcb28-efa8-331f-989f-7e559d581005", "abstract"=>"Plant-derived products can play an important role in pest management programs. Essential oils from Lavandula angustifolia (lavender) and Thymus vulgaris (thyme) and their main constituents, linalool and thymol, respectively, were evaluated for insecticidal activity and synergistic action in combination with insecticides against green peach aphid, Myzus persicae (Sulzer) (Hemiptera: Aphididae). The essential oils and their main constituents exerted similar insecticidal activity when aphids were exposed by direct sprays, but were non-toxic by exposure to treated leaf discs. In synergism experiments, the toxicity of imidacloprid was synergized 16- to 20-fold by L. angustifolia and T. vulgaris essential oils, but far less synergism occurred with linalool and thymol, indicating that secondary constituents of the oils were probably responsible for the observed synergism. In contrast to results with imidacloprid, the insecticidal activity of spirotetramat was antagonized by L. angustifolia and T. vulgaris essential oils, and linalool and thymol. Our results demonstrate the potential of plant essential oils as synergists of insecticides, but show that antagonistic action against certain insecticides may occur.", "link"=>"http://www.mendeley.com/research/plant-essential-oils-synergize-antagonize-toxicity-different-conventional-insecticides-against-myzus", "reader_count"=>27, "reader_count_by_academic_status"=>{"Unspecified"=>1, "Professor > Associate Professor"=>1, "Researcher"=>3, "Student > Doctoral Student"=>2, "Student > Ph. D. Student"=>2, "Student > Postgraduate"=>3, "Student > Master"=>5, "Other"=>1, "Student > Bachelor"=>7, "Lecturer"=>1, "Professor"=>1}, "reader_count_by_user_role"=>{"Unspecified"=>1, "Professor > Associate Professor"=>1, "Researcher"=>3, "Student > Doctoral Student"=>2, "Student > Ph. D. Student"=>2, "Student > Postgraduate"=>3, "Student > Master"=>5, "Other"=>1, "Student > Bachelor"=>7, "Lecturer"=>1, "Professor"=>1}, "reader_count_by_subject_area"=>{"Unspecified"=>4, "Engineering"=>2, "Environmental Science"=>1, "Biochemistry, Genetics and Molecular Biology"=>1, "Agricultural and Biological Sciences"=>11, "Medicine and Dentistry"=>2, "Chemical Engineering"=>1, "Chemistry"=>3, "Earth and Planetary Sciences"=>1, "Business, Management and Accounting"=>1}, "reader_count_by_subdiscipline"=>{"Engineering"=>{"Engineering"=>2}, "Medicine and Dentistry"=>{"Medicine and Dentistry"=>2}, "Chemistry"=>{"Chemistry"=>3}, "Earth and Planetary Sciences"=>{"Earth and Planetary Sciences"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>11}, "Business, Management and Accounting"=>{"Business, Management and Accounting"=>1}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>1}, "Unspecified"=>{"Unspecified"=>4}, "Environmental Science"=>{"Environmental Science"=>1}, "Chemical Engineering"=>{"Chemical Engineering"=>1}}, "reader_count_by_country"=>{"United States"=>1, "United Kingdom"=>1}, "group_count"=>0}

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/2081710"], "description"=>"<p><sup>a</sup> All 24 h exposure except spirotetramat, which was 48 h exposure.</p><p><sup>b</sup> A different solvent was needed to prepare thymol solutions. See <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0127774#pone.0127774.t001\" target=\"_blank\">Table 1</a> for details.</p><p><sup>c</sup> No significant mortality of aphids exposed to treated leaf discs at any concentration that was not phytotoxic.</p><p>Susceptibility<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0127774#t003fn001\" target=\"_blank\"><sup>a</sup></a> of <i>Myzus persicae</i> second instar nymphs to direct sprays or treated leaf discs of imidacloprid, spirotetramat, lavender (<i>Lavandula angustifolia</i>) and thyme (<i>Thymus vulgaris</i>) essential oils, linalool, and thymol.</p>", "links"=>[], "tags"=>["thymol", "plant Essential Oils Synergize", "synergism", "insecticide", "pest management programs", "Vulgari", "linalool", "Myzus persicae", "insecticidal activity", "constituent", "ANGUSTIFOLIA"], "article_id"=>1425589, "categories"=>["Biological Sciences", "Ecology"], "users"=>["Nicoletta Faraone", "N. Kirk Hillier", "G. Christopher Cutler"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0127774.t003", "stats"=>{"downloads"=>1, "page_views"=>13, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Susceptibility_a_of_Myzus_persicae_second_instar_nymphs_to_direct_sprays_or_treated_leaf_discs_of_imidacloprid_spirotetramat_lavender_Lavandula_angustifolia_and_thyme_Thymus_vulgaris_essential_oils_linalool_and_thymol_/1425589", "title"=>"Susceptibility<sup>a</sup> of <i>Myzus persicae</i> second instar nymphs to direct sprays or treated leaf discs of imidacloprid, spirotetramat, lavender (<i>Lavandula angustifolia</i>) and thyme (<i>Thymus vulgaris</i>) essential oils, linalool, and thymol.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-05-26 14:48:24"}
  • {"files"=>["https://ndownloader.figshare.com/files/2081711"], "description"=>"<p><sup>a</sup> LC50 of imidacloprid divided by LC50 of imidacloprid+EO (or main component), for each exposure route.</p><p><sup>b</sup> Ratio test [<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0127774#pone.0127774.ref029\" target=\"_blank\">29</a>] comparing the LC50 of imidacloprid to the LC50 of imidacloprid+EO (or main component), for each exposure route.</p><p><sup>c</sup> A different solvent was needed to dissolve thymol, thus necessitating a separate LC50 determination for imidacloprid. See <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0127774#pone.0127774.t001\" target=\"_blank\">Table 1</a> for details of solvent and synergist concentrations.</p><p>Susceptibility of <i>Myzus persicae</i> second instar nymphs to direct sprays or treated leaf discs of imidacloprid mixed with essential oils of <i>Lavandula angustifolia</i> and <i>Thymus vulgaris</i>, linalool or thymol.</p>", "links"=>[], "tags"=>["thymol", "plant Essential Oils Synergize", "synergism", "insecticide", "pest management programs", "Vulgari", "linalool", "Myzus persicae", "insecticidal activity", "constituent", "ANGUSTIFOLIA"], "article_id"=>1425590, "categories"=>["Biological Sciences", "Ecology"], "users"=>["Nicoletta Faraone", "N. Kirk Hillier", "G. Christopher Cutler"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0127774.t004", "stats"=>{"downloads"=>8, "page_views"=>30, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Susceptibility_of_Myzus_persicae_second_instar_nymphs_to_direct_sprays_or_treated_leaf_discs_of_imidacloprid_mixed_with_essential_oils_of_Lavandula_angustifolia_and_Thymus_vulgaris_linalool_or_thymol_/1425590", "title"=>"Susceptibility of <i>Myzus persicae</i> second instar nymphs to direct sprays or treated leaf discs of imidacloprid mixed with essential oils of <i>Lavandula angustifolia</i> and <i>Thymus vulgaris</i>, linalool or thymol.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-05-26 14:48:24"}
  • {"files"=>["https://ndownloader.figshare.com/files/2081708"], "description"=>"<p><sup>a</sup> Thymol concentrations above 0.5% w/v were phytotoxic.</p><p>Exposure treatments used to test the ability of lavender essential oil (EO), thyme EO, linalool, or thymol to synergize the insecticidal activity of imidacloprid and spirotetramat against <i>Myzus persicae</i>.</p>", "links"=>[], "tags"=>["thymol", "plant Essential Oils Synergize", "synergism", "insecticide", "pest management programs", "Vulgari", "linalool", "Myzus persicae", "insecticidal activity", "constituent", "ANGUSTIFOLIA"], "article_id"=>1425587, "categories"=>["Biological Sciences", "Ecology"], "users"=>["Nicoletta Faraone", "N. Kirk Hillier", "G. Christopher Cutler"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0127774.t001", "stats"=>{"downloads"=>1, "page_views"=>17, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Exposure_treatments_used_to_test_the_ability_of_lavender_essential_oil_EO_thyme_EO_linalool_or_thymol_to_synergize_the_insecticidal_activity_of_imidacloprid_and_spirotetramat_against_Myzus_persicae_/1425587", "title"=>"Exposure treatments used to test the ability of lavender essential oil (EO), thyme EO, linalool, or thymol to synergize the insecticidal activity of imidacloprid and spirotetramat against <i>Myzus persicae</i>.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-05-26 14:48:24"}
  • {"files"=>["https://ndownloader.figshare.com/files/2081709"], "description"=>"<p><sup><b>a</b></sup> unidentified compounds</p><p>Composition of essential oils extracted from Lavandula angustifolia and <i>Thymus vulgaris</i>.</p>", "links"=>[], "tags"=>["thymol", "plant Essential Oils Synergize", "synergism", "insecticide", "pest management programs", "Vulgari", "linalool", "Myzus persicae", "insecticidal activity", "constituent", "ANGUSTIFOLIA"], "article_id"=>1425588, "categories"=>["Biological Sciences", "Ecology"], "users"=>["Nicoletta Faraone", "N. Kirk Hillier", "G. Christopher Cutler"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0127774.t002", "stats"=>{"downloads"=>2, "page_views"=>13, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Composition_of_essential_oils_extracted_from_Lavandula_angustifolia_and_Thymus_vulgaris_/1425588", "title"=>"Composition of essential oils extracted from Lavandula angustifolia and <i>Thymus vulgaris</i>.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-05-26 14:48:24"}
  • {"files"=>["https://ndownloader.figshare.com/files/2081712"], "description"=>"<p><sup>a</sup> LC50 of spirotetramat divided by LC50 of spirotetramat+EO (or main component), for each exposure route.</p><p><sup>b</sup> Ratio test [<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0127774#pone.0127774.ref029\" target=\"_blank\">29</a>] comparing the LC50 of spirotetramat to the LC50 of spirotetramat+EO (or main component), for each exposure route.</p><p><sup>c</sup> A different solvent was used to dissolve thymol, thus necessitating a separate LC50 determination for spirotetramat. See <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0127774#pone.0127774.t001\" target=\"_blank\">Table 1</a> for details of solvent and synergist concentrations.</p><p>Susceptibility of <i>Myzus persicae</i> second instar nymphs to direct sprays or treated leaf discs of spirotetramat mixed with essential oils of <i>Lavandula angustifolia</i> and <i>Thymus vulgaris</i>, linalool or thymol.</p>", "links"=>[], "tags"=>["thymol", "plant Essential Oils Synergize", "synergism", "insecticide", "pest management programs", "Vulgari", "linalool", "Myzus persicae", "insecticidal activity", "constituent", "ANGUSTIFOLIA"], "article_id"=>1425591, "categories"=>["Biological Sciences", "Ecology"], "users"=>["Nicoletta Faraone", "N. Kirk Hillier", "G. Christopher Cutler"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0127774.t005", "stats"=>{"downloads"=>4, "page_views"=>23, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Susceptibility_of_Myzus_persicae_second_instar_nymphs_to_direct_sprays_or_treated_leaf_discs_of_spirotetramat_mixed_with_essential_oils_of_Lavandula_angustifolia_and_Thymus_vulgaris_linalool_or_thymol_/1425591", "title"=>"Susceptibility of <i>Myzus persicae</i> second instar nymphs to direct sprays or treated leaf discs of spirotetramat mixed with essential oils of <i>Lavandula angustifolia</i> and <i>Thymus vulgaris</i>, linalool or thymol.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-05-26 14:48:24"}

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{"start_date"=>"2015-01-01T00:00:00Z", "end_date"=>"2015-12-31T00:00:00Z", "subject_areas"=>[]}
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