Effect of three insect growth regulators (Chlorfluazuron, Tebofenozoid and pyriproxyfen) on fecundity of S. littoralis, histopathological and some biochemical aspects of moth ovary. | ||
| Egyptian Academic Journal of Biological Sciences, F. Toxicology & Pest Control | ||
| Article 5, Volume 4, Issue 1, December 2012, Pages 49-59 PDF (238.96 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/eajbsf.2012.17282 | ||
| Author | ||
| Aziza E. Abdel-Aal | ||
| Plant Protection Research Institute, A.R.C., Dokki-Giza, Egypt | ||
| Abstract | ||
| The insecticidal and biological effects of three insect growth regulator (chlorfluazuron, Tebofenozoid and pyriproxyfen) were evaluated on 4th instar larvae of Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae). Based on the LC50 values Chorofluazuron is the more toxic to S. littoralis than that of the two other compounds. Female longevity, fecundity and fertility were significantly reduced at all treatments compared to control. Furthermore, different levels of significant changes in the total protein, carbohydrate contents of the female ovaries pre-treated as 4th instar larvae by LC50 of used IGRs were recorded. Moreover, different abnormal histological structures of ovary were noticed. | ||
| Keywords | ||
| Insect growth regulators (IGR's); toxicity; LC50; Spodoptera littoralis; biological; biochemical and histological aspects | ||
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