José Guadalupe Ontiveros-Guerra
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
José Guadalupe Ontiveros-Guerra has a total of 9 co-authors. Here are the top co-authors by number of shared publications:
- Agustín Hernández-Juárez
Departamento de Parasitología, Universidad Autónoma Agraria Antonio Narro, Calzada Antonio Narro 1923, Buenavista, Saltillo 25315, Mexico
1 shared publication - Alberto Antonio Neira-Vielma
Centro de Estudios e Investigaciones Interdisciplinarias, Universidad Autónoma de Coahuila, Centro Cultural, Ciudad Universitaria, Carretera Mexico km. 13, Arteaga 25350, Coahuila, Mexico
1 shared publication - Ernesto Cerna-Chávez
Universidad Autónoma Agraria Antonio Narro
1 shared publication - Héctor Iván Meléndez Ortíz
CONACyT–Centro de Investigación en Química Aplicada, Saltillo, Mexico
1 shared publication - Josué Israel García López
Department of Plant Breeding, Autonomous Agrarian University Antonio Narro, Saltillo 25315, Mexico
1 shared publication - Julio César Chacón-Hernández
Universidad Autónoma de Tamaulipas
1 shared publication
Latest Publications
- Open Access
Effect of Gold Nanoparticles Against Tetranychus urticae and Phytoseiulus persimilis in Tomato
The two-spotted spider mite Tetranychus urticae Koch (Acari: Tetranychidae) is a major pest of horticultural, ornamental, fruit, and strawberry crops worldwide. Currently, various management tools have been explored for this pest, with nanoparticles being one of them, which stand out for their characteristics and multiple effects. This study evaluated the effects of green-synthesized gold nanoparticles (AuNPs) on the mortality and repellency of T. urticae and its natural predator Phytoseiulus persimilis under laboratory conditions, as well as their efficacy in greenhouse tomatoes against T. urticae. In the laboratory, a biological window for AuNPs (50–100 mg L−1) on the pest and predator was established using a residual film method and a free-choice assay. In the greenhouse, four concentrations (300, 500, 750, and 1000 mg L−1) were evaluated via foliar application at 10-day intervals. The results showed susceptibility to AuNPs in all stages of T. urticae and the adult P. persimilis. The death times from AuNPs were similar in both species. Furthermore, the AuNPs were selective for the pest rather than the natural enemy. In greenhouses, AuNPs affected T. urticae populations in tomato plants, and significant differences were observed on some continuous and final agronomic variables (associated with fruits). This study showed that T. urticae and P. persimilis were susceptible to green-synthesized AuNPs. AuNPs can be a management tool, although studies on other non-target species and estimating agronomic effects on other crops are recommended.
Open AccessEffect of Gold Nanoparticles Against Tetranychus urticae and Phytoseiulus persimilis in Tomato
The two-spotted spider mite Tetranychus urticae Koch (Acari: Tetranychidae) is a major pest of horticultural, ornamental, fruit, and strawberry crops worldwide. Currently, various management tools have been explored for this pest, with nanoparticles being one of them, which stand out for their characteristics and multiple effects. This study evaluated the effects of green-synthesized gold nanoparticles (AuNPs) on the mortality and repellency of T. urticae and its natural predator Phytoseiulus persimilis under laboratory conditions, as well as their efficacy in greenhouse tomatoes against T. urticae. In the laboratory, a biological window for AuNPs (50–100 mg L−1) on the pest and predator was established using a residual film method and a free-choice assay. In the greenhouse, four concentrations (300, 500, 750, and 1000 mg L−1) were evaluated via foliar application at 10-day intervals. The results showed susceptibility to AuNPs in all stages of T. urticae and the adult P. persimilis. The death times from AuNPs were similar in both species. Furthermore, the AuNPs were selective for the pest rather than the natural enemy. In greenhouses, AuNPs affected T. urticae populations in tomato plants, and significant differences were observed on some continuous and final agronomic variables (associated with fruits). This study showed that T. urticae and P. persimilis were susceptible to green-synthesized AuNPs. AuNPs can be a management tool, although studies on other non-target species and estimating agronomic effects on other crops are recommended.