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Entomopathogenic nematodes Steinernema carpocapsae and Heterorhabditis bacteriophora and their bacterial symbionts Xenorhabdus nematophila and Photorhabdus luminescens (P. luminescens), represent a specific agricultural niche. The successful integration of entomopathogenic nematodes (EPN) as regular use biological control agents require specific knowledge and understanding of the adaptation and establishment of applied biological control agents in agricultural ecosystems. For many years, the pest management capabilities of these pathogenic partnerships have been implemented in biological control settings. In this study, ten fertilizers were examined to explore the effects of nitrogen, phosphorus, and potassium (NPK) on the production of entomopathogenic bacteria Xenorhabdus nematophila and Photorhabdus luminescens. Laboratory exposure to fertilizer concentrations (0.5-2.5%) was used to determine the production of each bacterial species. Results conclude that P. luminescens are generally more sensitive to fertilizer than X. nematophila. Moreover, fertilizers containing high nitrogen suppressed bacterial densities more readily than those with lesser amounts. This paper summarizes the effects of the three important nutrients found in various concentrations of organic and inorganic fertilizers on entomopathogenic bacteria production.

References

  1. Upadhyay D., Mandjiny S., Bullard-Dillard R., Storms M., Menefee M., and Holmes L. D. Lab-scale in vitro mass production of the entomopathogenic nematode Heterorhabditis bacteriophora using liquid culture fermentation technology. American Journal of Bioscience and Bioengineering, 2015;3(6):203.
     Google Scholar
  2. Lewis, L. The effect of organic versus chemical fertilizers on insect pathogens. Leopold Center for Sustainable Agriculture, Competitive Grant Report, 1996.
     Google Scholar
  3. Upadhyay, D., Kooliyottil, R., Mandjiny, S., Inman III, F. L., and Holmes, L. D. Mass production of the beneficial nematode Steinernema carpocapsae utilizing a fed-batch culturing process. International Journal of Phytopathology, 2013; 2(1): 52-58.
     Google Scholar
  4. Kergunteuil, A., Bakhtiari, M., Formenti, L., Xiao, Z., Defossez, E., and Rasmann, S. Biological Control beneath the Feet: A Review of Crop Protection against Insect Root Herbivores. Insects, 2016;7(4): 70.
     Google Scholar
  5. Mullens, B. A., Meyer, J. A., and Georgis, R. Field tests of insect-parasitic nematodes (Rhabditida: Steinernematidae, Heterorhabditidae) against larvae of manure-breeding flies (Diptera: Muscidae) on caged-layer poultry facilities. Journal of economic entomology, 1987;80(2):438-442.
     Google Scholar
  6. Stewart, W. M., Dibb, D. W., Johnston, A. E., and Smyth, T. J. The contribution of commercial fertilizer nutrients to food production. Agronomy journal, 2005;97(1):1-6.
     Google Scholar
  7. Shapiro, D. I. The effects of fertilizers and earthworms on entomopathogenic nematodes (Doctoral dissertation, Iowa State University). 1994.
     Google Scholar
  8. Rodriguez-Kabana, R. Organic and inorganic nitrogen amendments to soil as nematode suppressants. Journal of Nematology, 1986;18(2):129.
     Google Scholar
  9. Bednarek, A., and Gaugler, R. Compatibility of soil amendments with entomopathogenic nematodes. Journal of nematology, 1997;29(2):220–227.
     Google Scholar
  10. Stock, S. P., Bird, D. M., Ghedin, E., and Godrich-Blair, H. Abstracts of NEMASYM: The Second Nematode-Bacteria Symbioses Research Coordination Network Meeting. Journal of Nematology, 2011;43(1):49.
     Google Scholar
  11. Gerdes, E., Upadhyay, D., Mandjiny, S., Bullard-Dillard, R., Storms, M., Menefee, M., and Holmes, L. D. Photorhabdus luminescens: virulent properties and agricultural applications. American Journal of Agriculture and Forestry, 2015;3(5):171-177.
     Google Scholar
  12. Noosidum, A., Hodson, A. K., Lewis, E. E., and Chandrapatya, A. Characterization of new entomopathogenic nematodes from Thailand: foraging behavior and virulence to the greater wax moth, Galleria mellonella L. (Lepidoptera: Pyralidae). Journal of nematology, 2010;42(4):281.
     Google Scholar
  13. Tess, J. M. Upadhyay, D., Mandjiny S., Dillard R., Frederick, J., and Holmes, L. Mass Production of the Beneficial Nematode Heterorhabditis bacteriophora on Solid Media Using Solid State Fermentation Technology. International Journal of Agriculture Sciences, 2016;8(55):3029-3031.
     Google Scholar
  14. Holmes, L., Upadhyay, D., and Mandjiny, S. Biological control of agriculture insect pests. European Scientific Journal, 2016; Special Edition:228-37.
     Google Scholar
  15. Hoy M.A. Augmentative Biological Control. In: Capinera J.L. (eds) Encyclopedia of Entomology. Springer, Dordrecht, 2008.
     Google Scholar
  16. Chattopadhyay, P., Banerjee, G., and Mukherjee, S. Recent trends of modern bacterial insecticides for pest control practice in integrated crop management system. 3 Biotech, 2017;7(1):60.
     Google Scholar
  17. Janet C. Cole, Michael W. Smith, Chad J. Penn, Becky S. Cheary, Kelley J. Conaghan, Kaur, R. Virulence of Symbiotic Bacteria Associated with Entomopathogenic Nematodes for Insect Pest Management (Doctoral Dissertation, Pau Ludhiana), 2013.
     Google Scholar
  18. Tucker, M. R. Essential plant nutrients: their presence in North Carolina soils and role in plant nutrition. Department of Agriculture and Consumer Services, Agronomic Division, 1999.
     Google Scholar
  19. Alkurdi, M. I. Impact of Nitrogen and Phosphorus efficiency on the growth and flowering of Helichrysum bractum. Journal of Agriculture and Veterinary Science, 2014;7(2):7-12.
     Google Scholar
  20. FEECO International Inc. NPK Fertilizer: What Is It and How Does It Work? https://feeco.com/npk-fertilizer-what-is-it-and-how-does-it-work/ 2017.
     Google Scholar
  21. Smart Jr, G. C. Entomopathogenic nematodes for the biological control of insects. Journal of nematology, 1995;27(4S):529.
     Google Scholar
  22. Zhang, Z., Zhang, X., Mahamood, M., Zhang, S., Huang, S., and Liang, W. Effect of long-term combined application of organic and inorganic fertilizers on soil nematode communities within aggregates. Scientific reports, 2016;6: 31118.
     Google Scholar
  23. Benkovic-Lacic, T., Brmez, M., Ivezic, M., Raspudic, E., Pribetić, D., Loncaricand, Z., and Blumenthal, J., Baltensperger, D., Cassman, G., Mason, S., and Pavlista, A. Importance and Effect of Nitrogen on Crop Quality and Health. Agronomy & Horticulture – Faculty Publications, 2008;200.
     Google Scholar
  24. Grubisic, D. Influence of organic and inorganic fertilizers on nematode communities in cornfield. Bulg. J. Agric. Sci., 2013;19:235-240.
     Google Scholar
  25. Cock, M., Day, R., Hinz, H., Pollard, K., Thomas, S., Williams, F., Witt, A., and Shaw, R. The impacts of some classical biological control successes. CAB Rev, 2015;10:1–58.
     Google Scholar