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El nivel de pH de las plantas regula la preferencia del Ceratapion basicorne (Coleoptera: Apionidae) tratado con
1Department of Entomology, University of California, Riverside, CA, USA.
Environmental entomology
|February 21, 2026
Resumen
El pH de las hojas influye significativamente en el agente de biocontrol Ceratapion basicorne. Ajustar el pH de la hoja a 5.8 mejora la alimentación y la puesta de huevos, cruciales para los programas de cría masiva.
Área de la Ciencia:
- Ciencias Agrícolas Ciencias Agrícolas
- Entomología Entomología.
- Manejo de plagas de gestión de plagas.
Sus antecedentes:
- Los agentes de control biológico para la cría masiva requieren superar desafíos como la diapausa reproductiva y mejorar los sustratos de puesta de huevos.
- El pH de las plantas es un rasgo clave que influye en el comportamiento y la eficacia del agente de control biológico.
Objetivo del estudio:
- Para investigar el impacto del pH de las hojas en las preferencias de alimentación y la oviposición del agente de control biológico Ceratapion basicorne.
- Para determinar si las hojas con pH coincidente pueden mejorar el desarrollo del sustrato de huevo para C. basicorne.
Principales métodos:
- Las hojas extirpadas se ajustaron a un pH de 5.8 (pH coincidente) y se compararon con hojas de control con un pH de 6.3.
- Se cuantificó el comportamiento de alimentación y oviposición de las hembras de C. basicorne en ambos tipos de hojas.
Principales resultados:
- La hembra C. basicorne exhibió una preferencia de 3,6 veces para alimentarse de hojas con pH coincidente (pH 5.8) sobre las hojas de control (pH 6.3).
- Se oviparon significativamente más huevos en hojas con pH coincidente (2,1 ± 0,3 huevos) en comparación con las hojas de control (0,8 ± 0,2 huevos).
Conclusiones:
- El pH de las hojas es un factor crítico que influye en la selección de la planta huésped y el éxito reproductivo de C. basicorne.
- La manipulación del pH de las hojas es una estrategia prometedora para mejorar el desarrollo del sustrato del huevo en los programas de cría masiva de este agente de control biológico.
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