Efficiency of entomopathogenic nematode and certain bio-agents as biological control against the tow-spotted spider mite, Tetranychus urticae Koch


  • Doaa A. Abou El Atta Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
  • Mona A. Ali Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
  • Rabab A. M. Hammd Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt


T. urticae, Heterorhabditis bacteriophora, Steinernema carpocapsae, Bacillus megaterium, Trichodema album


The objective of this study was to assess the efficiency of biocontrol agents such as entomopathogenic nematodes (EPNs) Heterorhabditis bacteriophora and Steinernema carpocapsae to Abamectin against the two-spotted spider mite Tetranychus urticae under laboratory settings. The mortality percentages of H. bacteriophora were 13.33 to 26.66% and 10 to 23.33% when using 2000 and 1000 juveniles, respectively. Moreover, mortality percentages from 6.6 to 26.66% for S. capocapsae were identical for both two levels. In contrast to Abamectin, Bioarc (Bacillus megaterium), Biozeid (Trichodema album), and Baroque agents were tested against T. urticae under greenhouse conditions. Bioarc had the highest mean reduction (96.28%) compared to Abamectin (99.16%), although Biozeid and Baroque were approximately equivalent in terms of mortality reduction (95.48% and 95.2%, respectively).


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How to Cite

D. A. Abou El Atta, M. . A Ali, and R. . A M Hammd, “Efficiency of entomopathogenic nematode and certain bio-agents as biological control against the tow-spotted spider mite, Tetranychus urticae Koch”, J. Appl. Entomol., vol. 3, no. 1, pp. 15–19, Feb. 2023.