Effect of PGPR on population growth parameters of cotton aphid

Azadeh Fahimi, Ahmad Ashouri, Masoud Ahmadzadeh, Vahid Hoseini Naveh, Ahmad Asgharzadeh, Feizollah Maleki, Gary W. Felton

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Abstract

Plant-growth-promoting rhizobacteria (PGPR) help plants by increasing plant growth and defending them against pathogens and pests. There is considerable research supporting the use of these bacteria in plant pathogens management, but the number of research papers that have focused on their effect on insect pests control is quite few. In this research, we examined the ability of four native strains of Pseudomonas fluorescens to manage the cotton aphid, Aphis gossypii, on greenhouse-grown cucumbers in Iran. The strains UTPF (University of Tehran Pseudomonas fluorescens) 68, UTPF1, UTPF6 and PF169 of P. fluorescens were used as seed treatment to evaluate their impact on both cucumber growth and cotton aphid population growth parameters. The strains UTPF68 and PF169 of this bacterium influenced phenology of cucumber by decreasing the Growing Degree Days of flowering period. Also, the plants treated with these bacterial strains had a significant increase in yield weight of approximately 58%. In the other part of the study, various effects on developmental parameters of aphid were recorded among bacterial strains, but only PF169 caused significant decreasing effect on rm value of aphid, which is the most important factor in aphid's life table. We conclude that the PF169 treatment had significant negative effects on population growth rate of A. gossypii. The PF169 could be reliable in a control programme for A. gossypii on cucumber plants in greenhouses.

Original languageEnglish (US)
Pages (from-to)1274-1285
Number of pages12
JournalArchives of Phytopathology and Plant Protection
Volume47
Issue number11
DOIs
Publication statusPublished - Jul 2014

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All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science

Cite this

Fahimi, A., Ashouri, A., Ahmadzadeh, M., Hoseini Naveh, V., Asgharzadeh, A., Maleki, F., & Felton, G. W. (2014). Effect of PGPR on population growth parameters of cotton aphid. Archives of Phytopathology and Plant Protection, 47(11), 1274-1285. https://doi.org/10.1080/03235408.2013.840099