Tritrophic interaction between the Mexican sunflower, the aphid Aphis gossypii and natural enemies in a greenhouse experiment
The establishment of invasive plants negatively affects natural environments. Invasive herbivores that attack weeds can be used as a form of biological control, but natural enemies of herbivores must be associated with this interaction to prevent the invasive phytophagous from become a local pest. W...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Maringá
2020-02-01
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| Series: | Acta Scientiarum: Biological Sciences |
| Subjects: | |
| Online Access: | http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/47120 |
| _version_ | 1828473096598716416 |
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| author | Henrique Venâncio Renata Alexandre Bianchi Thaís Oliveira Santos Lobato Marcus Vinícius Sampaio Jean Carlos Santos |
| author_facet | Henrique Venâncio Renata Alexandre Bianchi Thaís Oliveira Santos Lobato Marcus Vinícius Sampaio Jean Carlos Santos |
| author_sort | Henrique Venâncio |
| collection | DOAJ |
| description | The establishment of invasive plants negatively affects natural environments. Invasive herbivores that attack weeds can be used as a form of biological control, but natural enemies of herbivores must be associated with this interaction to prevent the invasive phytophagous from become a local pest. We performed a greenhouse experiment to evaluate how the cotton aphid, Aphis gossypii, a ok and invasive herbivore, affects the performance of the weed Tithonia diversifolia, the Mexican sunflower. We also examined the relationship between the aphid and local natural enemies. Seedlings of T. diversifolia were divided in two groups: one infested by the aphid and another not infested. After 22 days, we assessed the relationship between aphid abundance and the presence of natural enemies (Coccinelidae and Aphidius platensis) on infested plants, and compared the vegetative performance of the two seedling groups. Both natural enemies were positively related to high aphid density on infested plants. Plants infested by the aphid presented foliar necrosis and senescence, and a reduction of around 50% in leaf number, foliar area, shoot length and shoot, root and total plant weight compared to non-infested plants. These results indicate potential biological control of Mexican sunflower seedlings by the cotton aphid, and control of this aphid by the studied natural enemies. |
| first_indexed | 2024-12-11T05:39:26Z |
| format | Article |
| id | doaj.art-f3cf08a97b0f40699082ca2f55feea3d |
| institution | Directory Open Access Journal |
| issn | 1679-9283 1807-863X |
| language | English |
| last_indexed | 2024-12-11T05:39:26Z |
| publishDate | 2020-02-01 |
| publisher | Universidade Estadual de Maringá |
| record_format | Article |
| series | Acta Scientiarum: Biological Sciences |
| spelling | doaj.art-f3cf08a97b0f40699082ca2f55feea3d2022-12-22T01:19:11ZengUniversidade Estadual de MaringáActa Scientiarum: Biological Sciences1679-92831807-863X2020-02-0142e47120e4712010.4025/actascibiolsci.v42i1.4712047120Tritrophic interaction between the Mexican sunflower, the aphid Aphis gossypii and natural enemies in a greenhouse experimentHenrique Venâncio0Renata Alexandre Bianchi1Thaís Oliveira Santos Lobato2Marcus Vinícius Sampaio3Jean Carlos Santos4Universidade de São PauloUniversidade de FrancaUniversidade Federal de UberlândiaUniversidade Federal de UberlândiaUniversidade Federal de SergipeThe establishment of invasive plants negatively affects natural environments. Invasive herbivores that attack weeds can be used as a form of biological control, but natural enemies of herbivores must be associated with this interaction to prevent the invasive phytophagous from become a local pest. We performed a greenhouse experiment to evaluate how the cotton aphid, Aphis gossypii, a ok and invasive herbivore, affects the performance of the weed Tithonia diversifolia, the Mexican sunflower. We also examined the relationship between the aphid and local natural enemies. Seedlings of T. diversifolia were divided in two groups: one infested by the aphid and another not infested. After 22 days, we assessed the relationship between aphid abundance and the presence of natural enemies (Coccinelidae and Aphidius platensis) on infested plants, and compared the vegetative performance of the two seedling groups. Both natural enemies were positively related to high aphid density on infested plants. Plants infested by the aphid presented foliar necrosis and senescence, and a reduction of around 50% in leaf number, foliar area, shoot length and shoot, root and total plant weight compared to non-infested plants. These results indicate potential biological control of Mexican sunflower seedlings by the cotton aphid, and control of this aphid by the studied natural enemies.http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/47120tithonia diversifolia; cotton aphid; aphidius platensis; coccinelidae; biological control. |
| spellingShingle | Henrique Venâncio Renata Alexandre Bianchi Thaís Oliveira Santos Lobato Marcus Vinícius Sampaio Jean Carlos Santos Tritrophic interaction between the Mexican sunflower, the aphid Aphis gossypii and natural enemies in a greenhouse experiment Acta Scientiarum: Biological Sciences tithonia diversifolia; cotton aphid; aphidius platensis; coccinelidae; biological control. |
| title | Tritrophic interaction between the Mexican sunflower, the aphid Aphis gossypii and natural enemies in a greenhouse experiment |
| title_full | Tritrophic interaction between the Mexican sunflower, the aphid Aphis gossypii and natural enemies in a greenhouse experiment |
| title_fullStr | Tritrophic interaction between the Mexican sunflower, the aphid Aphis gossypii and natural enemies in a greenhouse experiment |
| title_full_unstemmed | Tritrophic interaction between the Mexican sunflower, the aphid Aphis gossypii and natural enemies in a greenhouse experiment |
| title_short | Tritrophic interaction between the Mexican sunflower, the aphid Aphis gossypii and natural enemies in a greenhouse experiment |
| title_sort | tritrophic interaction between the mexican sunflower the aphid aphis gossypii and natural enemies in a greenhouse experiment |
| topic | tithonia diversifolia; cotton aphid; aphidius platensis; coccinelidae; biological control. |
| url | http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/47120 |
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