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Molecular identification of predation on the Dubas bug (Hemiptera: Tropiduchidae) in Oman date palms: density-dependent response to prey.
Athey, Kacie J; Chapman, Eric G; Al-Khatri, Salem; Moktar, Abdel Moneim; Obrycki, John J.
Afiliación
  • Athey KJ; Department of Crop Sciences, University of Illinois Urbana-Champaign, Urbana, IL, USA.
  • Chapman EG; Department of Entomology, University of Kentucky, Lexington, KY, USA.
  • Al-Khatri S; Plant Protection Research Centre, Directorate General of Agricultural and Livestock Research, Ministry of Agriculture and Fisheries, Muscat, Sultanate of Oman.
  • Moktar AM; Environmental and Biological Resources Sector, The Research Council, Muscat, Sultanate of Oman.
  • Obrycki JJ; Department of Entomology, University of Kentucky, Lexington, KY, USA.
J Insect Sci ; 24(4)2024 Jul 01.
Article en En | MEDLINE | ID: mdl-39243221
ABSTRACT
The date palm (Phoenix dactylifera L.) (Arecales Arecaceae) is the most economically important crop in Oman with an annual production of >360,000 tons of fruit. The Dubas bug (Ommatissus lybicus de Bergevin) (Hemiptera Tropiduchidae) is one of the major pests of date palms, causing up to a 50% reduction in fruit production. Across the course of 2 seasons, a variety of arthropod predators living in the date palm canopy were investigated for possible biological control of Dubas bugs, given the growing interest in nonchemical insect pest control in integrated pest management. We collected ~6,900 arthropod predators directly from date palm fronds from 60 Omani date palm plantations and tested them for Dubas bug predation using PCR-based molecular gut content analysis. We determined that ≥56 species of arthropod predators feed on the Dubas bug. We found that predatory mites, ants, and the entire predator community combined showed a positive correlation between predation detection frequency and increasing Dubas bug density. Additionally, there was a significant impact of season on gut content positives, with the spring season having a significantly higher percentage of predators testing positive for Dubas bug, suggesting this season could be the most successful time to target conservation biological control programs utilizing a diverse suite of predators.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Conducta Predatoria / Heterópteros / Cadena Alimentaria / Phoeniceae Límite: Animals País/Región como asunto: Asia Idioma: En Revista: J Insect Sci Asunto de la revista: BIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Conducta Predatoria / Heterópteros / Cadena Alimentaria / Phoeniceae Límite: Animals País/Región como asunto: Asia Idioma: En Revista: J Insect Sci Asunto de la revista: BIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos