Efficacy of Biological and Chemical Control Agents Against the Potato Psyllid (Bactericera cockerelli Šulc) Under Field Conditions
Potato (Solanum tuberosum L.) is the third most important food crop worldwide and a cornerstone of food security across the Andean region. However, its production is increasingly threatened by the potato psyllid Bactericera cockerelli (Šulc), the vector of Candidatus Liberibacter solanacearum, the c...
| Autores principales: | , , , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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MDPI (Multidisciplinary Digital Publishing Institute)
2025
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12955/2969 https://doi.org/10.3390/ijpb16040136 |
| _version_ | 1855490338209136640 |
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| author | Cárdenass Huaman, Gabriela Morocho Romero, Henry Hoseph Casas Niño, Sebastian Vilchez Navarro, Sandy Graciela Velarde Apaza, Leslie Diana Ramirez Rojas, Max Cruz Luis, Juancarlos Alejandro Lozano Isla, Flavio Morocho Romero, Henry |
| author_browse | Casas Niño, Sebastian Cruz Luis, Juancarlos Alejandro Cárdenass Huaman, Gabriela Lozano Isla, Flavio Morocho Romero, Henry Morocho Romero, Henry Hoseph Ramirez Rojas, Max Velarde Apaza, Leslie Diana Vilchez Navarro, Sandy Graciela |
| author_facet | Cárdenass Huaman, Gabriela Morocho Romero, Henry Hoseph Casas Niño, Sebastian Vilchez Navarro, Sandy Graciela Velarde Apaza, Leslie Diana Ramirez Rojas, Max Cruz Luis, Juancarlos Alejandro Lozano Isla, Flavio Morocho Romero, Henry |
| author_sort | Cárdenass Huaman, Gabriela |
| collection | Repositorio INIA |
| description | Potato (Solanum tuberosum L.) is the third most important food crop worldwide and a cornerstone of food security across the Andean region. However, its production is increasingly threatened by the potato psyllid Bactericera cockerelli (Šulc), the vector of Candidatus Liberibacter solanacearum, the causal agent of the purple-top complex associated with zebra chip disease, which severely reduces both tuber yield and quality. This study was conducted from September 2024 to February 2025 in the province of Huancabamba, Peru, to evaluate the efficacy of biological and chemical control agents against B. cockerelli under field conditions. A randomized complete block design was implemented with five treatments and four replicates, totaling 20 experimental units, each consisting of 20 potato plants (S. tuberosum L.), of which 10 plants were evaluated. Treatments included an untreated control (T0), a chemical control (thiamethoxam + lambda-cyhalothrin, abamectin, and imidacloprid) (T1), and three biological control agents: Beauveria bassiana CCB LE-265 (>1.5 × 10¹⁰ conidia g⁻¹) (T2), Paecilomyces lilacinus strain 251 (1.0 × 10¹⁰ conidia g⁻¹) (T3), and Metarhizium anisopliae (1.0 × 10¹⁰ conidia g⁻¹) (T4). Foliar applications targeted eggs, nymphs, and adults of the psyllid. Results indicated that B. cockerelli mortality across developmental stages was lower under biological treatments compared with T1, which achieved the lowest probability of purple-top symptom expression (46%) and a zebra chip incidence of 60.60%. Among the biological agents, M. anisopliae (T4) reduced incidence to 56.60%, while P. lilacinus (T3) demonstrated consistent suppression of nymphal populations. In terms of yield, T1 achieved the highest tuber weight (198.86 g plant⁻¹) and number of tubers (7.74 plant⁻¹), followed by T3 (5.08) and T4 (4.24). Nevertheless, all treatments exhibited low yields and small tuber sizes, likely due to unfavorable environmental conditions and the presence of the invasive pest. Overall, chemical control was more effective than biological agents; however, the latter showed considerable potential for integration into sustainable pest management programs. Importantly, vector suppression alone does not guarantee the absence of purple-top complex symptoms or zebra chip disease in potato tubers. |
| format | Artículo |
| id | INIA2969 |
| institution | Institucional Nacional de Innovación Agraria |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | MDPI (Multidisciplinary Digital Publishing Institute) |
| publisherStr | MDPI (Multidisciplinary Digital Publishing Institute) |
| record_format | dspace |
| spelling | INIA29692025-12-31T19:40:15Z Efficacy of Biological and Chemical Control Agents Against the Potato Psyllid (Bactericera cockerelli Šulc) Under Field Conditions Cárdenass Huaman, Gabriela Morocho Romero, Henry Hoseph Casas Niño, Sebastian Vilchez Navarro, Sandy Graciela Velarde Apaza, Leslie Diana Ramirez Rojas, Max Cruz Luis, Juancarlos Alejandro Lozano Isla, Flavio Morocho Romero, Henry Andean agriculture Entomopathogenic fungi Integrated pest management Candidatus Liberibacter solanacearum Field trials Tuber yield Zebra chip disease Agricultura andina Hongos entomopatógenos Manejo integrado de plagas Ensayos de campo Rendimiento de tubérculos Enfermedad de la astilla cebra https://purl.org/pe-repo/ocde/ford#4.01.06 Papa, Potatoes; Solanum tuberosum; Plaga de plantas; Plant pests; Control biológico; Biological control; Control químico; Chemical control; Beauveria bassiana; Rendimiento de cultivos; Crop yield Potato (Solanum tuberosum L.) is the third most important food crop worldwide and a cornerstone of food security across the Andean region. However, its production is increasingly threatened by the potato psyllid Bactericera cockerelli (Šulc), the vector of Candidatus Liberibacter solanacearum, the causal agent of the purple-top complex associated with zebra chip disease, which severely reduces both tuber yield and quality. This study was conducted from September 2024 to February 2025 in the province of Huancabamba, Peru, to evaluate the efficacy of biological and chemical control agents against B. cockerelli under field conditions. A randomized complete block design was implemented with five treatments and four replicates, totaling 20 experimental units, each consisting of 20 potato plants (S. tuberosum L.), of which 10 plants were evaluated. Treatments included an untreated control (T0), a chemical control (thiamethoxam + lambda-cyhalothrin, abamectin, and imidacloprid) (T1), and three biological control agents: Beauveria bassiana CCB LE-265 (>1.5 × 10¹⁰ conidia g⁻¹) (T2), Paecilomyces lilacinus strain 251 (1.0 × 10¹⁰ conidia g⁻¹) (T3), and Metarhizium anisopliae (1.0 × 10¹⁰ conidia g⁻¹) (T4). Foliar applications targeted eggs, nymphs, and adults of the psyllid. Results indicated that B. cockerelli mortality across developmental stages was lower under biological treatments compared with T1, which achieved the lowest probability of purple-top symptom expression (46%) and a zebra chip incidence of 60.60%. Among the biological agents, M. anisopliae (T4) reduced incidence to 56.60%, while P. lilacinus (T3) demonstrated consistent suppression of nymphal populations. In terms of yield, T1 achieved the highest tuber weight (198.86 g plant⁻¹) and number of tubers (7.74 plant⁻¹), followed by T3 (5.08) and T4 (4.24). Nevertheless, all treatments exhibited low yields and small tuber sizes, likely due to unfavorable environmental conditions and the presence of the invasive pest. Overall, chemical control was more effective than biological agents; however, the latter showed considerable potential for integration into sustainable pest management programs. Importantly, vector suppression alone does not guarantee the absence of purple-top complex symptoms or zebra chip disease in potato tubers. The authors express their gratitude to the National Institute of Agricultural Innovation (INIA) for financial support through the project “El Chira” (No. 2472190) and to the institutional research service for their assistance during this study. We also thank Milagros Ninoska Munoz-Salas for her valuable assistance in translating the manuscript into English. 2025-12-30T18:16:27Z 2025-12-30T18:16:27Z 2025-12-03 info:eu-repo/semantics/article Cárdenas-Huamán, G., Morocho-Romero, H., Casas-Niño, S., Vilchez-Navarro, S., Velarde-Apaza, L. D., Ramirez-Rojas, M., Cruz, J., & Lozano-Isla, F. (2025). Efficacy of Biological and Chemical Control Agents Against the Potato Psyllid (Bactericera cockerelli Šulc) Under Field Conditions. International Journal of Plant Biology, 16(4), 136. https://doi.org/10.3390/ijpb16040136 2037-0164 http://hdl.handle.net/20.500.12955/2969 https://doi.org/10.3390/ijpb16040136 eng urn:issn:2037-0164 International Journal of Plant Biology info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ application/pdf application/pdf MDPI (Multidisciplinary Digital Publishing Institute) CH Instituto Nacional de Innovación Agraria Repositorio Institucional - INIA |
| spellingShingle | Andean agriculture Entomopathogenic fungi Integrated pest management Candidatus Liberibacter solanacearum Field trials Tuber yield Zebra chip disease Agricultura andina Hongos entomopatógenos Manejo integrado de plagas Ensayos de campo Rendimiento de tubérculos Enfermedad de la astilla cebra https://purl.org/pe-repo/ocde/ford#4.01.06 Papa, Potatoes; Solanum tuberosum; Plaga de plantas; Plant pests; Control biológico; Biological control; Control químico; Chemical control; Beauveria bassiana; Rendimiento de cultivos; Crop yield Cárdenass Huaman, Gabriela Morocho Romero, Henry Hoseph Casas Niño, Sebastian Vilchez Navarro, Sandy Graciela Velarde Apaza, Leslie Diana Ramirez Rojas, Max Cruz Luis, Juancarlos Alejandro Lozano Isla, Flavio Morocho Romero, Henry Efficacy of Biological and Chemical Control Agents Against the Potato Psyllid (Bactericera cockerelli Šulc) Under Field Conditions |
| title | Efficacy of Biological and Chemical Control Agents Against the Potato Psyllid (Bactericera cockerelli Šulc) Under Field Conditions |
| title_full | Efficacy of Biological and Chemical Control Agents Against the Potato Psyllid (Bactericera cockerelli Šulc) Under Field Conditions |
| title_fullStr | Efficacy of Biological and Chemical Control Agents Against the Potato Psyllid (Bactericera cockerelli Šulc) Under Field Conditions |
| title_full_unstemmed | Efficacy of Biological and Chemical Control Agents Against the Potato Psyllid (Bactericera cockerelli Šulc) Under Field Conditions |
| title_short | Efficacy of Biological and Chemical Control Agents Against the Potato Psyllid (Bactericera cockerelli Šulc) Under Field Conditions |
| title_sort | efficacy of biological and chemical control agents against the potato psyllid bactericera cockerelli sulc under field conditions |
| topic | Andean agriculture Entomopathogenic fungi Integrated pest management Candidatus Liberibacter solanacearum Field trials Tuber yield Zebra chip disease Agricultura andina Hongos entomopatógenos Manejo integrado de plagas Ensayos de campo Rendimiento de tubérculos Enfermedad de la astilla cebra https://purl.org/pe-repo/ocde/ford#4.01.06 Papa, Potatoes; Solanum tuberosum; Plaga de plantas; Plant pests; Control biológico; Biological control; Control químico; Chemical control; Beauveria bassiana; Rendimiento de cultivos; Crop yield |
| url | http://hdl.handle.net/20.500.12955/2969 https://doi.org/10.3390/ijpb16040136 |
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