Effects of Four Organophosphorus Insecticides Use to Control Aphis Compositellae Theobald on Some of Their Natural Enemies

Authors

  • Ibrahim A.R. Al–Jabery Department of Plant Protection, Faculty of Agriculture, Omar Al-Mukhtar University, Al-Bayda - Libya
  • Abdul Baki M.H. Ali Ali Department of Plant Protection, Faculty of Agriculture, Omar Al-Mukhtar University, Al-Bayda .

Keywords:

insecticides, the aphid–parasite (A. tronscaspicus Telenga), coccinellid (Coccinella septempunctata L.), toxicity

Abstract

Results of laboratory studies indicated that the used insecticides (Supracide®, Nogos®, Diazinon®, and Ekatin®, were deadly to the aphid–parasite (A. tronscaspicus Telenga) which was very sensitive even to the low concentrations of the insecticide residues, while individuals inside the mummified aphid that directly exposed to the spray were unaffected except upon contact with residues after eclosion from the mummified aphid. Also, coccinellid popae (Coccinella septempunctata L.) were shown to be highly tolerant as compared with larvae and adults in the direct exposure for deadly concentrations of the insecticides to the aphids. Results also indicated that Ekatim® and Nogos®, respectively, have selective toxicity to the aphid rather than to the coccinellid predator, whereas supracide® and Diazinon® were very toxic to the aphid and their natural enemies as well.

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References

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Published

1999-12-31

How to Cite

Al–Jabery, I. A. ., & Ali, A. B. M. A. (1999). Effects of Four Organophosphorus Insecticides Use to Control Aphis Compositellae Theobald on Some of Their Natural Enemies. Al-Mukhtar Journal of Sciences, 6(1), 81–89. Retrieved from https://omu.edu.ly/journals/index.php/mjsc/article/view/477

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