VARIATION OVER TIME OF BIOINSECTICIDES EFFECT ON Spodoptera frugiperda INCIDENCE IN CORN (Zea mays) IN DRY SEASON IN MOCACHE, LOS RÍOS, ECUADOR
Background. Corn cultivation – one of the main crops in the world – is important in Ecuador for human and animal nutrition, but one of the main limitations in production is the damage caused by the insect pest Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae). Objective. Therefore, the obj...
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| Format: | Article |
| Language: | English |
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Universidad Autónoma de Yucatán
2023-01-01
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| Series: | Tropical and Subtropical Agroecosystems |
| Subjects: | |
| Online Access: | https://www.revista.ccba.uady.mx/ojs/index.php/TSA/article/view/3958 |
| _version_ | 1797300593540202496 |
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| author | Ramiro Gaibor Fernández Sergio Rodríguez Rodríguez Juan José Reyes- Pérez César Miguel Guevara Avilés Paula Plaza Zambrano |
| author_facet | Ramiro Gaibor Fernández Sergio Rodríguez Rodríguez Juan José Reyes- Pérez César Miguel Guevara Avilés Paula Plaza Zambrano |
| author_sort | Ramiro Gaibor Fernández |
| collection | DOAJ |
| description | Background. Corn cultivation – one of the main crops in the world – is important in Ecuador for human and animal nutrition, but one of the main limitations in production is the damage caused by the insect pest Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae). Objective. Therefore, the objective of this research is to evaluate the effectiveness over time of three bio-insecticides on pest incidence in maize hybrid INIAP H601 in Mocache, Los Ríos, Ecuador in the dry season. Methodology. A completely randomized design was used with five treatments and four replicates: (1) Natural neem (Azadirachta indica) leaf extract in doses of 1.88 L; (2) Bassigeos (Beauveria bassiana) in doses of 5 L; (3) Neem + B. bassiana mix in doses of 7 L; (4) Chemical bait in doses of 80 kg.ha-1; and (5) Control group without application, processed by a linear model of repeated measures. Results. A significant variation was observed in the treatments due to the influence of time. Implications. Corn agricultural production has a long tradition and importance in Ecuador, especially in the Province of Los Ríos where productions are affected by S. frugiperda whose major control is by using polluting chemical products. Conclusions. Because the effect of the applied bio-insecticide treatments changes overtime, pest incidence is modified through a linear model of repeated measures. The lowest incidence percentages are achieved with the use of B. bassiana (Bb), A. indica (neem) and Bb + Neem mix after day 15, whereas the chemical control group achieves it throughout the evaluated time interval. |
| first_indexed | 2024-03-07T23:09:25Z |
| format | Article |
| id | doaj.art-c3b622bf56f745e4b64b60013e5b664e |
| institution | Directory Open Access Journal |
| issn | 1870-0462 |
| language | English |
| last_indexed | 2024-03-07T23:09:25Z |
| publishDate | 2023-01-01 |
| publisher | Universidad Autónoma de Yucatán |
| record_format | Article |
| series | Tropical and Subtropical Agroecosystems |
| spelling | doaj.art-c3b622bf56f745e4b64b60013e5b664e2024-02-21T16:05:32ZengUniversidad Autónoma de YucatánTropical and Subtropical Agroecosystems1870-04622023-01-0126110.56369/tsaes.39581436VARIATION OVER TIME OF BIOINSECTICIDES EFFECT ON Spodoptera frugiperda INCIDENCE IN CORN (Zea mays) IN DRY SEASON IN MOCACHE, LOS RÍOS, ECUADORRamiro Gaibor Fernández0Sergio Rodríguez Rodríguez1Juan José Reyes- Pérez2César Miguel Guevara Avilés3Paula Plaza Zambrano4Quevedo State Technical UniversityUniversity of GranmaQuevedo State Technical UniversityQuevedo State Technical UniversityQuevedo State Technical UniversityBackground. Corn cultivation – one of the main crops in the world – is important in Ecuador for human and animal nutrition, but one of the main limitations in production is the damage caused by the insect pest Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae). Objective. Therefore, the objective of this research is to evaluate the effectiveness over time of three bio-insecticides on pest incidence in maize hybrid INIAP H601 in Mocache, Los Ríos, Ecuador in the dry season. Methodology. A completely randomized design was used with five treatments and four replicates: (1) Natural neem (Azadirachta indica) leaf extract in doses of 1.88 L; (2) Bassigeos (Beauveria bassiana) in doses of 5 L; (3) Neem + B. bassiana mix in doses of 7 L; (4) Chemical bait in doses of 80 kg.ha-1; and (5) Control group without application, processed by a linear model of repeated measures. Results. A significant variation was observed in the treatments due to the influence of time. Implications. Corn agricultural production has a long tradition and importance in Ecuador, especially in the Province of Los Ríos where productions are affected by S. frugiperda whose major control is by using polluting chemical products. Conclusions. Because the effect of the applied bio-insecticide treatments changes overtime, pest incidence is modified through a linear model of repeated measures. The lowest incidence percentages are achieved with the use of B. bassiana (Bb), A. indica (neem) and Bb + Neem mix after day 15, whereas the chemical control group achieves it throughout the evaluated time interval.https://www.revista.ccba.uady.mx/ojs/index.php/TSA/article/view/3958cornneembeauberia bassianaspodoptera frugiperdaincidence. |
| spellingShingle | Ramiro Gaibor Fernández Sergio Rodríguez Rodríguez Juan José Reyes- Pérez César Miguel Guevara Avilés Paula Plaza Zambrano VARIATION OVER TIME OF BIOINSECTICIDES EFFECT ON Spodoptera frugiperda INCIDENCE IN CORN (Zea mays) IN DRY SEASON IN MOCACHE, LOS RÍOS, ECUADOR Tropical and Subtropical Agroecosystems corn neem beauberia bassiana spodoptera frugiperda incidence. |
| title | VARIATION OVER TIME OF BIOINSECTICIDES EFFECT ON Spodoptera frugiperda INCIDENCE IN CORN (Zea mays) IN DRY SEASON IN MOCACHE, LOS RÍOS, ECUADOR |
| title_full | VARIATION OVER TIME OF BIOINSECTICIDES EFFECT ON Spodoptera frugiperda INCIDENCE IN CORN (Zea mays) IN DRY SEASON IN MOCACHE, LOS RÍOS, ECUADOR |
| title_fullStr | VARIATION OVER TIME OF BIOINSECTICIDES EFFECT ON Spodoptera frugiperda INCIDENCE IN CORN (Zea mays) IN DRY SEASON IN MOCACHE, LOS RÍOS, ECUADOR |
| title_full_unstemmed | VARIATION OVER TIME OF BIOINSECTICIDES EFFECT ON Spodoptera frugiperda INCIDENCE IN CORN (Zea mays) IN DRY SEASON IN MOCACHE, LOS RÍOS, ECUADOR |
| title_short | VARIATION OVER TIME OF BIOINSECTICIDES EFFECT ON Spodoptera frugiperda INCIDENCE IN CORN (Zea mays) IN DRY SEASON IN MOCACHE, LOS RÍOS, ECUADOR |
| title_sort | variation over time of bioinsecticides effect on spodoptera frugiperda incidence in corn zea mays in dry season in mocache los rios ecuador |
| topic | corn neem beauberia bassiana spodoptera frugiperda incidence. |
| url | https://www.revista.ccba.uady.mx/ojs/index.php/TSA/article/view/3958 |
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